22nd week of 2015 patent applcation highlights part 19 |
Patent application number | Title | Published |
20150145402 | SPARK PLUG AND MANUFACTURING METHOD THEREOF - A spark plug includes a center electrode, a ground electrode, and a cylindrical metal shell. The ground electrode is welded to the metal shell via a weld portion. The weld portion is formed along the outer circumference end part of an annular part in the ground electrode. The weld portion has a plurality of melt extending parts extending toward the inner circumference side from the outer circumference end part of the annular part and aligned such that adjacent ones are connected to each other at the end part. The plurality of melt extending parts partially include smaller melt extending parts whose melting depth is smaller than others. | 2015-05-28 |
20150145403 | SPARK PLUG - An ignition plug having a center electrode, a grounding electrode, an insulator, and a metal shell. The center electrode is held by the insulator, and the insulator is held by metal shell. A cavity is formed between the grounding electrode and the center electrode. The grounding electrode is joined to the inner wall surface of the metal shell via a melting portion. In the melting portion, in a predetermined cutting surface MS including a melting deepest point DP and a central axis CX, a percentage ratio MDD of a melting depth MD of the melting portion with respect to a thickness of the grounding electrode is 5% or more, and an area Sm of a portion included in an outer circumferential side of the metal shell is 10% or more of the entire area S. | 2015-05-28 |
20150145404 | Method and Setup to Manipulate Electrically Charged Particles - The invention relates to a such particle accelerator setup ( | 2015-05-28 |
20150145405 | QUANTUM DOT ELECTROLUMINESCENCE DISPLAY DEVICE AND DISPLAY APPARATUS - A quantum dot electroluminescence display device and display apparatus are provided, and a electroluminescence structure ( | 2015-05-28 |
20150145406 | SOLID-STATE LINEAR LIGHTING ARRANGEMENTS INCLUDING LIGHT EMITTING PHOSPHOR - A method is described for manufacturing an LED lamp module, where the individual LEDs in the lamp module do not include a conventional package structure and/or integrated encapsulation on the individual LEDs. The lamp module includes a co-extruded component, the co-extruded component comprising an elongate lens and a layer of photoluminescent material. The elongate lens is for shaping light emitted from the lamp and comprises an elongate interior cavity. The layer of a photoluminescent material is located on an interior wall of the elongate interior cavity. An optical medium is provided as part of the manufacturing process for the lamp module, where the optical medium surrounds the LEDs in an array of LEDs. The optical medium can be co-extruded over the LEDs. In addition, a liquid optical medium can be applied in the assembly process to remove air interfaces between the LEDs and component. | 2015-05-28 |
20150145407 | ELECTRIC LAMP - An electric lamp having a longitudinal axis is provided. The electric lamp may include a base; and a built-in lamp, which has a pinch seal. Two power supply lines protrude out of the pinch seal. Two pins for connection to the power supply lines are provided on the base side. In each case one pin and one power supply line are connected by means of a mounting clip. A mounting clip is a punched sheet-metal part having a bottom which is configured so as to be substantially rectangular with a width B and a length L. Two spring arms are attached to the bottom, which spring arms surround the pinch seal of the built-in lamp. In each case one means for fastening a pin and one means for fastening a power supply line are provided on the mounting clip. | 2015-05-28 |
20150145408 | ILLUMINATED MIRROR DEVICE AND METHOD FOR CONTROLLING ILLUMINATION THEREOF - Provided is an illuminated mirror device including: a mirror; a light-emitting part for illumination disposed near the mirror; and driving means for driving the light-emitting part, and detection means for detecting a direction of a face of a person in front of the mirror with respect to the mirror, wherein the driving means controls an emission luminance distribution on a light-emitting surface of the light-emitting part on the basis of the face direction detected by the detection means. Also provided is a method for controlling illumination thereof. | 2015-05-28 |
20150145409 | AUTOMOTIVE LED BLEED RESISTOR CIRCUIT AND BODY CONTROL MODULE INTERRUPT WAKEUP CIRCUIT - A motor vehicle includes a processor having an interrupt input. A battery includes a positive terminal. A switch interconnects the positive terminal of the battery and the interrupt input of the processor. A first resistor interconnects the positive terminal of the battery and the interrupt input of the processor. A light emitting diode includes an input and an output. A second resistor interconnects the input of the light emitting diode and the interrupt input of the processor. A third resistor is connected in parallel with a series combination of the second resistor and the light emitting diode. | 2015-05-28 |
20150145410 | METHOD FOR CONTROLLING AN INTERIOR LIGHTING SYSTEM IN A VEHICLE AND INTERIOR LIGHTING SYSTEM - In a method of controlling an interior lighting ( | 2015-05-28 |
20150145411 | LIGHT CONTROL APPARATUS AND METHOD FOR VEHICLE - A light control apparatus for a vehicle may include: an operation unit configured to receive a selection for an auto-light function; a control unit configured to determine whether or not a light operation condition is satisfied based on position information provided from a GPS module and plural pieces of information for operating a light unit, received through a wireless communication module, and output a light operating signal according to the determination result, when the auto-light function is selected through the operation unit; and a light control unit configured to operate a light unit according to the light operating signal provided from the control unit. | 2015-05-28 |
20150145412 | LAMP WITH ELECTRICAL COMPONENTS EMBEDDED IN AN INSULATION COMPOUND | 2015-05-28 |
20150145413 | PROCESS CHAMBER APPARATUS, SYSTEMS, AND METHODS FOR CONTROLLING A GAS FLOW PATTERN - Process chamber gas flow control apparatus may include, or be included in, a process chamber configured to process a substrate therein. The gas flow control apparatus may include a valve configured to seal an exhaust port in the process chamber. The valve may be moveable in the X, Y, and Z directions relative to the exhaust port to adjust a gas flow pattern (including, e.g., flow rate and/or flow uniformity) within the process chamber. Methods of adjusting a flow of a process gas within a process chamber are also provided, as are other aspects. | 2015-05-28 |
20150145414 | MICROWAVE PULSE GENERATOR WITH VARIABLE FREQUENCY EMISSION - A variable frequency microwave pulse generator that includes a high voltage charger for charging with a high voltage, a high pressure gas tank for supplying insulation gas, and an electrode discharge unit. The electrode discharge unit includes a case, an accommodation section defined inside the case, and a pair of electrode sections disposed at one side and the other side of the accommodation section so as to face each other. The pair of electrode sections is spaced apart from each other to define a spark gap therebetween where the insulation gas supplied from the high pressure gas tank is loaded. An annular resonance recess is defined at the central portion of one electrode section of the pair of electrode sections, the depth of the resonance recess being variable in response to an adjustment knob disposed on the case being manipulated. | 2015-05-28 |
20150145415 | LED Array Member and Integrated Control Module Assembly with Built-In Switching Converter - A LAM/ICM assembly comprises an integrated control module (ICM) and an LED array member (LAM). The ICM includes interconnect through which power from outside the assembly is received. In a first novel aspect, active circuitry is embedded in the ICM. In one example, the circuitry monitors LED operation, controls and supplies power to the LEDs, and communicates information into and out of the assembly. In a second novel aspect, a lighting system comprises an AC-to-DC converter and a LAM/ICM assembly. The AC-to-DC converter outputs a substantially constant current or voltage. The magnitude of the current or voltage is adjusted by a signal output from the LAM/ICM. In a third novel aspect, the ICM includes a built-in switching DC-to-DC converter. An AC-to-DC power supply supplies a roughly regulated supply voltage. The switching converter within the LAM/ICM receives the roughly regulated voltage and supplies a regulated LED drive current to its LEDs. | 2015-05-28 |
20150145416 | ELECTRICAL WIRING DEVICE - The present invention is directed to an electrical wiring assembly that includes a wall plate cover, a housing portion and an electro-optical assembly coupled to a plurality of wiring terminations. The assembly includes a circuit configured to provide an output signal in response to an external input signal. The assembly also includes a plurality of lighting elements coupled to the circuit and configured to emit the plurality of light beams in response to the output signal. The electro-optical assembly further includes an ambient light sensor accessible to the ambient space via at least one of the plurality of openings. The ambient light sensor is configured to generate the at least one external input signal in response to an ambient light level in the ambient space, the ambient light sensor being substantially isolated from the plurality of light beams. | 2015-05-28 |
20150145417 | DRIVER CIRCUIT WITH A SEMICONDUCTOR LIGHT SOURCE AND METHOD FOR OPERATING A DRIVER CIRCUIT - A driver circuit for a semiconductor light source and to a method for controlling the brightness thereof are provided. When a pulse width modulated semiconductor light source reaches a duty cycle threshold value, the voltage is increased or decreased through a variable voltage source in order to achieve a higher dynamic range. | 2015-05-28 |
20150145418 | AMBIENT LIGHT REGULATION METHODS - A lighting fixture includes a solid-state light source and control circuitry. The control circuitry is configured to receive one or more ambient light level measurements corresponding to the amount of ambient light detected by an ambient light sensor, and determine a range of values for the one or more ambient light level measurements corresponding to a desired amount of light detected by the ambient light sensor. The control circuitry is then configured to drive the solid-state light source such that the one or more ambient light level measurements received from the ambient light sensor fall within the determined range of values. | 2015-05-28 |
20150145419 | METHODS AND APPARATUS FOR AUTOMATICALLY ADAPTING LIGHT OUTPUT OF A LIGHTING UNIT - Methods and apparatus related to controlling illumination on a lighting unit ( | 2015-05-28 |
20150145420 | SWITCH DISCRIMINATING TOUCHLESS LIGHTSWITCH - Control of one or more switches arrayed in a multi-gang switch box is disclosed. One or more sensors may receive or provide an indication of a gesture near one of the switches. An indication of the switch determined to which a gesture is determined to be directed toward may be displayed. A state change may be performed on the switch according to the gesture. | 2015-05-28 |
20150145421 | Light control system added security function based on CPTED and method thereof - The present invention relates to a lighting control system with a security function based on a CPTED, which is capable of acquiring detailed video information on a desired object in interlocking with a video device such as a DVR based on sensing information collected through sensors included a local lighting device and controlling a lighting adjacent to the object to strengthen a security function. Since lightings and cameras can be simultaneously controlled to direct a suspicious object in response to motion of the suspicious object without any separate video analysis module, the object's crime intention can be prevented and the object's video can be acquired without any shadow zone or deteriorated video quality, which can result in increased security in interlocking of the security function including CPTED-based crime prevention with the lighting control. | 2015-05-28 |
20150145422 | LIGHTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME - A lighting device includes: a plurality of DC power supply circuits. A plurality of light sources and switching units are connected to each of the DC power supply circuits, the switching units being configured to respectively switch electrical connection between the light sources and said each of the DC power supply circuits. A difference in rated voltage between any two light sources connected to one of the plurality of DC power supply circuits in common is smaller than a difference in rated voltage between two light sources respectively connected to different DC power supply circuits of the plurality of DC power supply circuits. | 2015-05-28 |
20150145423 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device includes a pixel unit, a first voltage supply unit, a second voltage supply unit, and a selection unit. The pixel unit includes a plurality of pixels coupled to power lines. The first voltage supply unit is configured to output a first voltage. The second voltage supply unit is configured to output a second voltage. The selection unit is configured to supply any one of the first and second voltages to the pixels through the power lines. | 2015-05-28 |
20150145424 | LCD BACKLIGHT DRIVING CIRCUIT AND LIQUID CRYSTAL DEVICE - A LED backlight driving circuit is disclosed. The LED backlight driving circuit includes a driving module, a detecting module, and an adjusting module. The driving module receives a control voltage generated by a voltage control module, receives a feedback voltage generated by a feedback voltage module, and generates driving signals to a LED unit. The detecting module generates adjusting signals for the adjusting module according to a detected value of the driving signals. The adjusting module controls the feedback voltage according to the adjusting signals generated by the detecting module so as to adjust the driving signals. In this way, not only the current precision within the LED unit is enhanced, but also the light source is kept stable. Also, the life cycle of the LED units is also increased. In addition, a LED backlight driving circuit includes the above LED backlight driving circuit is also disclosed. | 2015-05-28 |
20150145425 | Cascode-type Dimming Switch Using A Bipolar Junction Transistor For Driving A String Of Light Emitting Diodes - The invention comprises a dimming switch for use with a string of light emitting diodes (LEDs). The dimming switch comprises a bipolar junction transistor (BJT) driven in a cascode scheme. The dimming switch also comprises circuitry to offset the current that drives the base of the BJT to provide a controlled amount of current to the LEDs when the dimming input signal is high. | 2015-05-28 |
20150145426 | APPARATUS AND METHOD FOR DRIVING SEMICONDUCTOR LIGHT-EMITTING DEVICE ASSEMBLY - The disclosure provides a driving apparatus and a method for driving a semiconductor light-emitting device assembly. The apparatus includes: a driving unit configured to drive the semiconductor light-emitting device assembly; and a cycle by cycle control unit. The cycle by cycle control unit may include: a sampling circuit configured to sample a current instantaneous value of the driving unit or the semiconductor light-emitting device assembly; and an adjusting circuit configured to adjust an output of the driving unit when the current instantaneous value sampled by the sampling circuit is larger than or equal to a preset reference value. The driving apparatus and method for driving the semiconductor light-emitting device assembly may effectively reduce an inrush current on the light-emitting devices and have a lower cost. | 2015-05-28 |
20150145427 | BOOST AND LINEAR LED CONTROL - A light emitting diode (LED) lighting system includes a switching power converter having an input for coupling to an alternating current (AC) power source, an output, and a switch. The LED lighting system also includes an LED lighting subsystem coupled to receive power from the output of the switching power converter. The LED lighting subsystem includes a current source for one or more LEDs, and the current source has a control node and a sense node. The LED lighting system additionally includes a switch state controller coupled to the switching power converter and coupled to the LED lighting subsystem. The switch state controller controls switching of the switch and varies a control current provided to the control node of the current source based on at least a parameter sensed from the sense node. | 2015-05-28 |
20150145428 | COMPACT FLUORESCENT LAMP THREE-WAY BALLAST DRIVER - A compact fluorescent lamp (CFL) ballast driver includes first, second and neutral AC voltage terminals, a full wave rectifier between the first AC voltage terminal and the neutral AC input terminal, and a separate branch between the second AC voltage terminal and the neutral AC input terminal. A resonator circuit includes at least two inductors and provides its output voltage to a CFL lamp. The driver includes a first state detector circuit to monitor the first AC voltage terminal, and a second state detector circuit to monitor the second AC voltage terminal. The first and second state detector circuits activate respective first and second switches. The first switch shunts one inductor of the resonator circuit, and the second switch shunts another inductor of the resonator circuit. The driver can be housed in a CFL having a capper, a three-way lamp base adjacent to the capper and an arc tube. | 2015-05-28 |
20150145429 | Electronic Ballast Circuit For Lamps - An electronic ballast circuit includes a power factor correction circuit, a control and amplifier circuit, a ballast controller circuit and a ballast driver circuit. The ballast driver circuit includes a resonant circuit that connects to a lamp and a strike voltage limiter circuit that regulates the behavior of the resonant circuit. An overcurrent sensor circuit may be included to indirectly the control the ballast controller circuit via the control and amplifier circuit. The strike voltage limiter circuit uses varistors to change the resonant frequency of the resonant circuit to limit the voltage to the lamp. | 2015-05-28 |
20150145430 | COMBINED DIGITAL MODULATION AND CURRENT DIMMING CONTROL FOR LIGHT EMITTING DIODES - A method includes providing an input signal identifying a desired brightness for one or more LEDs to first and second parallel control paths. The method also includes generating a digital modulation control signal using the first control path, generating a current control signal using the second control path, and driving the one or more LEDs using the control signals. The method further includes performing compensation in at least one of the control paths to compensate for an increased efficiency of the one or more LEDs. Generating the control signals could include (i) adjusting the digital modulation control signal while maintaining the current control signal at a substantially constant value for a range of lower LED brightness values and (ii) adjusting the current control signal while maintaining the digital modulation control signal at a maximum value or within a range of maximum values for a range of higher LED brightness values. | 2015-05-28 |
20150145431 | VOLTAGE-CONTROLLED DIMMING OF LED-BASED LIGHT MODULES COUPLED IN PARALLEL TO A POWER SUPPLY - Some embodiments include a LED-based light module. The LED-based light module can include a memory to store a color mixing plan; a regulator that receives a variable output voltage from a power supply; a voltage measurement component, coupled in parallel to the regulator and the power supply, configured to measure a voltage level of the variable output voltage; a logic component; and a driver circuit. The logic component can be configured to determine driving current profiles for LEDs in the LED-based light module to dim a light output of the LEDs based on the voltage level. The driver circuit can drive the LEDs according to the driving current profiles by drawing power from the power supply (e.g., through the regulator). | 2015-05-28 |
20150145432 | DRIVE SYSTEM OF SEMICONDUCTOR LIGHT SOURCE, AND SEMICONDUCTOR LIGHTING DEVICE - Disclosed are a driving system for a semiconductor light source and a semiconductor lighting device. The driving system includes a transformer, the transformer comprising a first coil (201) and a second coil (202) coupled to each other, the second coil (202) being used for receiving an input voltage; a switching means which is connected in series to the second coil (202) of the transformer and used for controlling energy-storing and energy-releasing of the second coil (202); and an outputting means which is connected in parallel to the second coil (202) of the transformer and used for supplying power to the semiconductor light source, wherein an induced signal is generated on the first coil (201) of the transformer due to a coupling effect between the first coil and the second coil (202) and is used for controlling the turn-on or turn-off of the switching means. | 2015-05-28 |
20150145433 | LIGHTING APPARATUS - A lighting apparatus includes a light source module and a power supply module. The light source module includes an electrical light source and a transmitter circuit configured to transmit a wireless signal containing information about the light source. The power supply module is connected to the light source module and includes a power supply circuit configured to generate electric power for the light source, a receiver circuit configured to receive the wireless signal transmitted from the transmitter circuit, and a control circuit configured to control the power supply circuit in accordance with the wireless signal received through the receiver circuit. | 2015-05-28 |
20150145434 | BACKLIGHT UNIT - A backlight unit includes a first switch receiving a constant current applied from an outside circuit and a sensing current, a first comparator receiving an output of the first switch, a second switch receiving an output of the first comparator, a second comparator receiving an output of the second switch; a thin film transistor having a gate electrode receiving an output of the second comparator; a light-emitting diode array connected to a source electrode of the thin film transistor; and a current sensor connected to a drain electrode of the thin film transistor. | 2015-05-28 |
20150145435 | CONTROL METHOD OF MOBILE DEVICE - A control method of a mobile device that controls one or more pieces of lighting equipment that illuminate a space includes: displaying a scene configuration screen that includes a configuration screen for configuring a new scene, and a configuration finish button; transmitting to the one or more pieces of lighting equipment a control signal based on configuration information indicating a lighting state configured by user operations on the configuration screen; activating the image capture unit after the configuration finish button is selected; storing in memory the configuration information from when the configuration finish button was selected as configuration information for the new scene, and also storing an image acquired by the image capture unit as a scene icon of the new scene; and displaying a new scene selection screen that includes the scene icon of the new scene. | 2015-05-28 |
20150145436 | LIGHTING DEVICE AND ILLUMINATION APPARATUS USING SAME - A lighting device includes: a DC power source circuit; an output control circuit including a chopping switch to adjust an output current by chopping of the chopping switch; light source switches respectively connected to the light sources; and a control unit for controlling a time period for which a current flows in the light sources. The control unit controls the output control circuit such that an operation period for which the chopping is conducted and a stop period for which the chopping is stopped are repeated alternately and performs switchover of the light source switches to be sequentially and selectively turned on, and the switchover is conducted during the stop period with a time interval from a beginning of the stop period. | 2015-05-28 |
20150145437 | LIGHTING SYSTEM WITH AN INTERFACE HAVING A POWER SUPPLY UNIT AND AT LEAST ONE LIGHT SOURCE MODULE - Various embodiments may relate to a power supply unit, including an output for outputting an operating current depending on an internal measurement signal, a communications line, and a current-measuring device, which is connected to the communications line. The current-measuring device is designed to generate a current on the communications line which is proportional to the conductance of a current-setting resistance. The current-measuring device has a current mirror, which is designed to mirror the generated current on the communications line. The current-measuring device is designed to convert the mirrored current into an internal measurement signal with a reference potential which is different than the communications line. At least one light source module is connectable to the output, wherein the at least one light source module has the current-setting resistance, which is connectable to the communications line. | 2015-05-28 |
20150145438 | VARIABLE RESISTANCE DEVICE FOR REDUCED POWER DISSIPATION IN DIMMER COMPATIBILITY CIRCUITS - A variable resistance device may be used in a dimmer compatibility circuit to reduce power dissipation in an integrated circuit of the dimmer compatibility circuit. For example, the integrated circuit may include switches coupled to resistors external to the integrated circuit. The integrated circuit may operate the switches to commutate among the external resistors and select a voltage drop that reduces a voltage at a drain voltage of the switches. The reduced drain voltage reduces power dissipation in the switches and instead dissipates the power in the external resistors. | 2015-05-28 |
20150145439 | PRE-CHARGING INDUCTOR IN SWITCHING CONVERTER TO ACHIEVE HIGH PWM DIMMING RATIO IN LED DRIVERS - In a method for controlling a current regulator for dimming an LED load, a dimming signal has a duty cycle that controls the LED ON-time and LED OFF time at a fixed frequency. The regulator is controlled by the dimming signal to only supply current to the LED load during the LED ON-time. The regulator includes an inductor. The inductor current at the end of an ON-time is detected and its value is stored. During the OFF-time, the inductor is pre-charged to the current level matching the stored value, while the regulator's feedback loop is frozen during the OFF-time to not change its feedback control signal. Upon the next ON-time, the regulator begins supplying current to the LED load with the pre-charged inductor current, so there is no initial decrease in the delivered LED current. Therefore, the current pulse magnitudes are constant even with very low duty cycles. | 2015-05-28 |
20150145440 | ORGANIC EL PANEL AND METHOD FOR MANUFACTURING LIGHT-EMITTING DEVICE USING THE SAME - An organic EL panel with less variation in an emission luminance thereof and a method for manufacturing a light-emitting device using the same are provided. The organic EL panel of the present invention includes: a substrate; a light-emitting section of the organic EL panel provided on the substrate; a current supply terminal provided on the substrate for supplying a current to the light-emitting section; and a current density adjusting section electrically connected to the current supply terminal in parallel to the light-emitting section and provided on the substrate. A current density of the light-emitting section is adjusted by processing of the current density adjusting section. Moreover, in the method for manufacturing a light-emitting device according to the present invention, after a light-emitting characteristic is adjusted by processing a post-processing region of the above-described organic EL panel, a light-emitting device including the processed organic EL panel is manufactured. | 2015-05-28 |
20150145441 | SYSTEMS AND METHODS OF APPLYING BLEED CIRCUITS IN LED LAMPS - A bleed circuit is applied to a transformer based on a bleed-on time and a bleed-off time determined by monitoring an output voltage waveform of the transformer. | 2015-05-28 |
20150145442 | CONTROL DEVICE AND CONTROL METHOD FOR HYBRID VEHICLE POWER UNIT - A power unit includes a first rotating electrical machine and a second rotating electrical machine as prime movers. The first rotating electrical machine, the second rotating electrical machine and a drive wheel are respectively connected to a ring gear, sun gear and carrier of a planetary gear mechanism. When a temperature of a permanent magnet of the first rotating electrical machine becomes close to a temperature at which demagnetization occurs, an output of the first rotating electrical machine is reduced, and an output of the second rotating electrical machine is increased. Thus, the total output of the power unit is kept. | 2015-05-28 |
20150145443 | Autonomous Battery Balancing - A device is introduced for cell-balancing a plurality of battery cells connected in series. The device includes a measuring device which is connectable to each of the battery cells and which is configured to generate a current which is proportional to a minimum cell voltage of all the cell voltages of the battery cells and to output the current to resistors which are connected in series. The device also contains a multiplicity of comparators which compare a cell voltage of an assigned battery cell to the minimum cell voltage which is replicated by the current which is proportional to the minimum cell voltage and the resistors. The comparators are configured to output a control signal, which is dependent on a result of the comparison, to an assigned discharging unit which allows a discharge current to flow from the respective battery cell as a function of the control signal. | 2015-05-28 |
20150145444 | BATTERY-POWERED CORDLESS CLEANING SYSTEM - A cleaning system including a motor, an impeller driven by the motor, a battery receptacle, and a motor controller. The battery receptacle is configured to receive a battery pack. The battery pack includes one or more battery cells and a battery controller. The motor controller is configured to receive from the battery controller one of a first type of data and a second type of data, and operate the motor at a defined speed, the defined speed being a first speed upon receiving the first type of data, and a second speed upon receiving the second type of data. | 2015-05-28 |
20150145445 | SYSTEM FOR CONTROLLING MOTOR OF HYBRID ELECTRIC VEHICLE - A system for controlling a motor of a hybrid vehicle determines a current of a first axis and a current of a second axis according to a driving condition, converts the currents of the first and second axes into a 3-phase AC current, and drives the motor by applying the 3-phase AC current to the motor, and includes: a revised temperature calculation module that calculates a revised temperature in order to compensate a torque error according to counter electromotive force dispersion of the motor; and a current determination module that determines the currents of the first and second axes by substituting the corrected temperature to a current map for each temperature and by using a demand torque at a present driving condition, a present speed of the motor, and a maximum counter magnetic flux of the motor. | 2015-05-28 |
20150145446 | MOTOR DRIVE DEVICE - A motor drive device includes a constant voltage power supply and a motor drive control unit. The constant voltage power supply includes an AC/DC converter, a zero-cross detector, a switching control unit and a switching regulator. The AC/DC converter converts an AC voltage supplied from an AC voltage source into a DC voltage. The zero-cross detector detects a zero-cross point of the AC voltage, and outputs a zero-cross detection signal. The switching control unit outputs a switching control signal based on the zero-cross detection signal. The switching regulator has a switching element. The motor drive control unit outputs a motor drive signal for driving a motor to the inverter. The AC/DC converter has a rectifier circuit and a smoothing capacitor. The switching regulator performs switching on a first DC voltage in accordance with the switching control signal at a timing corresponding to the zero-cross point. | 2015-05-28 |
20150145447 | MOTOR CONTROL DEVICE AND IMAGE FORMING APPARATUS WITH THE SAME - A motor control device includes a motor device, a speed command section, and a load detecting section. The motor control device includes: a motor configured to drive a rotating body and output a speed notification signal having an oscillation frequency corresponding to a rotational speed of the rotating body; and a driver IC configured to control a rotational speed of the motor. The speed command section is provided outside the motor device and configured to output a speed command signal designating a rotational speed of the motor to the driver IC. The load detecting section is provided outside the motor device and configured to derive a phase difference between the speed command signal and the speed notification signal and detect a load on the motor based on the phase difference. | 2015-05-28 |
20150145448 | ROTATING ELECTRIC MACHINE DRIVER AND ELECTRIC POWER STEERING DEVICE - A rotating electric machine driver apparatus and an electric power steering apparatus using the same includes a controller section that obtains a detected current value and generates a high-side instruction signal and a low-side instruction signal to switch an upper arm element and a lower arm element based on the detected current value. An abnormality detector determines a simul-OFF abnormality which is an abnormality of a pair made up of the high-side and low-side instruction signals being simultaneously switched off based on a condition that switching off of the high-side instruction signal for the upper arm element and the low-side instruction signal for the lower arm element pair continues for at least a simul-OFF abnormality determination time. In such manner, the simul-OFF abnormality of the instruction signals is detected. | 2015-05-28 |
20150145449 | ROTATING ELECTRIC MACHINE DRIVER AND ELECTRIC POWER STEERING DEVICE - A rotating electric machine driving apparatus includes a controller section that obtains an electric current detection value and generates instruction signals for switching ON and OFF of switching elements based on the electric current detection value. The rotating electric machine driving apparatus also includes an IC that is provided with a signal amplifier for outputting amplified signals, which are amplified instruction signals output from the controller section. When an abnormal state, in which one of an instruction signal and an amplified signal amplifying the instruction signal is an ON instruction and the other one of the instruction signal and the amplified signal is an OFF instruction, continues for at least an abnormality determination time, an abnormality detector determines an abnormality of the amplified signal, which realizes an appropriate detection of an abnormality of the amplified signal. | 2015-05-28 |
20150145450 | CONTROL CIRCUIT FOR A DC MOTOR - A control circuit for a DC motor, has: a first and second input ports for connection to a DC source; a H-bridge driving circuit, having first and second switches connected in series between the input ports, and third and fourth switches connected in series between the input ports, a first output port between the first and second switches and a second output port between the third and fourth switches, and a shunt circuit and/or a blocking circuit. The motor is connected between the first and second output ports. The shunt circuit is connected between the first second output ports and has a resistance that will decrease in response to BEMF generated by the motor. The blocking circuit is connected in series with the motor between the output ports and has a resistance that increases in response to BEMF generated by the motor. | 2015-05-28 |
20150145451 | CONTROL APPARATUS FOR SYNCHRONOUS ROTARY MACHINE ENABLING SUPPRESSION OF ROTOR VIBRATION - In a synchronous rotary machine such as a synchronous motor, respective values of the number of pole pairs of the rotor and the number of stator slots are predetermined such as to enable drive currents to be passed through the stator windings which suppress specific varying electromagnetic forces that act on the rotor and produce vibration. The drive current of each phase of the motor consists of a fundamental-frequency sinusoidal waveform current having specific harmonic-frequency currents superimposed thereon, the harmonic-frequency currents having angular velocities which are appropriate, with respect to the angular variation velocities of the specific varying electromagnetic forces, for suppressing these forces. | 2015-05-28 |
20150145452 | POWER CONVERTING CIRCUIT - A power converting circuit for supplying power to an inductive load, includes an inductance, a switching circuit and an energy saving circuit. The inductance is charged when the switching circuit is conductive and discharges energy to the energy saving circuit and the inductive load when the switching circuit is nonconductive. The energy saving circuit discharges energy to the inductive load when the switching circuit is conductive. | 2015-05-28 |
20150145453 | POWER CONVERTING CIRCUIT - A power conversion circuit for supplying power to an inductive load, includes a switching circuit and an energy saving circuit. The inductive load is supplied with electrical power and the energy saving circuit is charged when the switching circuit is conductive, and the inductive load is disconnected from the electrical power supply and the energy stored in the energy saving circuit is discharged to the inductive load when the switching circuit is nonconductive. | 2015-05-28 |
20150145454 | MOTOR CONTROL APPARATUS FOR SENSORLESS MOTOR, AND IMAGE FORMING APPARATUS - A motor control apparatus includes: a supply unit configured to supply a current for excitation to a plurality of coils of a motor; a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of at least one of the plurality of coils; a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit. | 2015-05-28 |
20150145455 | Phase Current Regulation in BLDC Motors - A method is provided for determining a phase current direction and a zero-crossing moment of the phase current in a sinusoidally controlled brushless direct current motor. The brushless direct current motor comprises a coil per phase and the phase of the brushless direct current motor is driven by a half bridge driver. The half bridge driver comprises a high side field effect transistor and a low side field effect transistor. The method comprising the following steps: measuring the drain source voltage over the high side field effect transistor and low side field effect transistor, and determining the zero crossing moment of the phase current by determining the current direction based on the measured drain source voltages and by determining the moment the current changes direction. | 2015-05-28 |
20150145456 | CONTROL SYSTEM FOR AN ELECTRIC MOTOR BASED ON A PULSED CONTROL SIGNAL - The present invention concerns a control system for an electric motor, wherein an operating mode with predetermined value assignments is selected for a parameter set for controlling an electric motor and the pulse frequency of a control signal for the electric motor is set in accordance with the selected operating mode in order thereby to signal to the electric motor the selected value assignments for the parameter set. | 2015-05-28 |
20150145457 | Control Circuits for Motors and Related Methods - Control circuits and related methods are provided. One exemplary control circuit includes a solid state switching device for coupling to a first tap of a motor and a control device coupled to the solid state switching device. The control device is configured to switch the solid state switching device to apply a signal to the first tap in response to a demand for operation of the motor at a second parameter to operate the motor at the second parameter. The control device is also configured to switch the solid state switching device to apply a signal to the first tap in response to a demand for operation of the motor at a first parameter to operate the motor at the first parameter. | 2015-05-28 |
20150145458 | CONTROLLING CIRCUIT FOR OUTPUTTING A SQUARE WAVE SIGNAL TO CONTROL A FAN ROTATING SPEED - A controlling circuit for outputting a square wave circuit to control a fan rotating speed is disclosed, where an output unit continuously outputs the square wave signal and the output unit is electrically connected to a time-delaying adjustment circuit, so that a duty-ratio formed not equal to 50% is outputted to control the fan rotating speed, whereby a particular duty-ratio is provided to control the fan rotating speed after a control chip for fan rotating speed is pulled out. | 2015-05-28 |
20150145459 | METHODS AND SYSTEMS FOR CONTROLLING AN ELECTRIC MOTOR - A system and method of controlling an electric motor using a motor drive controller are provided. The motor drive controller includes a rectifier configured to convert an AC input voltage to a DC voltage, a DC bus electrically coupled to the rectifier, an inverter electrically coupled to the DC bus and configured to generate an AC voltage to drive the electric motor, and a control unit. The control unit includes a sign calculation module configured to determine a polarity of each phase of a reference current command and a compensation module configured to generate a voltage compensation command signal using one of the determined polarities of the reference current command and a measured current, and one of a measurement of DC bus voltage and a constant DC bus voltage value, the voltage compensation signal compensating the drive controller to neutralize a deadtime effect. | 2015-05-28 |
20150145460 | MOTOR CONTROLLER HAVING ABNORMALITY DETECTION FUNCTION OF POWER TRANSMISSION UNIT BETWEEN MOTOR AND MAIN SHAFT - A motor controller includes: a motor rotation angle acquisition unit acquiring the rotation angle of the motor; a main shaft rotation angle acquisition unit acquiring the rotation angle of the main shaft; a one-rotation signal acquisition unit acquiring a one-rotation signal output every time the main shaft rotates once; a motor rotation speed calculation unit calculating the rotation speed of the motor from the rotation angle of the motor; a main shaft speed calculation unit calculating the rotation speed of the main shaft from the rotation angle of the main shaft; and an abnormality determination unit in which, when a change amount of the rotation angle of the motor or when the difference between the rotation speed of the motor and the rotation speed of the main shaft deviates from a second range, it is determined that an abnormality has occurred in the power transmission unit. | 2015-05-28 |
20150145461 | INPUT EMI FILTER FOR MOTOR DRIVE INCLUDING AN ACTIVE RECTIFIER - A poly-phase motor drive includes an input EMI filter having a poly-phase filter input and a poly-phase filter output and an active rectifier connected to the filter output. The input EMI filter includes notch filters tuned at active rectifier and motor drive inverter switching frequencies and diverts common-mode current into DC bus. The active rectifier has a DC output. A motor drive inverter is connected to the DC output. The motor drive inverter has a poly-phase motor control output. | 2015-05-28 |
20150145462 | METHOD AND APPARATUS FOR CURRENT AUTO BALANCING FOR PARALLEL CONVERTER SYSTEMS - Parallel converter current imbalance control apparatus and methods in which individual converter AC currents are measured for each phase, and the AC voltage control modulation indices associated with the converters having the highest and lowest AC currents for a given phase are adjusted to counteract current imbalance between the converters. | 2015-05-28 |
20150145463 | Method and Apparatus for Reducing Radiated Emissions in Switching Power Converters - A filter for reducing radiated emissions in switching power converters such as a motor drive is disclosed. The switching power converter modulates a DC voltage input to generate a desired AC voltage output. Capacitors are connected in parallel between each output phase and a common connection, which may be a ground connection. The magnitude and layout of the capacitors are selected to minimize current conducted by the capacitors. The capacitors may be surface mount technology located proximate to the switching devices or the capacitors may be incorporated in the circuit board on which the switching devices are mounted. The filter may be applied to any of the switching elements in a motor drive, such as the inverter section, an active rectifier section, or a switched mode power supply. | 2015-05-28 |
20150145464 | Controller and Control Method - A controller has a control unit generating a control signal to control a drive motor and a friction compensation unit adding a friction compensation signal to the control signal for compensating for a positioning error caused by friction in a guide unit. When reversing the direction of movement of the movable body, the friction compensation unit generates a friction compensation signal in accordance with a function f(α) representing a friction compensation value uf by a relationship with a variable α and asymptotically approaching the maximum value and the minimum value of the friction compensation value uf and having an inflection point therebetween, and adds the generated friction compensation signal to the control signal generated by the control unit during movement of the movable body a predetermined movement distance from before to after the reversing. | 2015-05-28 |
20150145465 | SERVO CONTROLLER HAVING FUNCTION FOR REDUCING DROPPING WHEN BRAKING - A servo controller having a function for reducing an amount of dropping of a gravity axis provided with a machine. The Servo controller is configured to control a servomotor for driving a gravity axis of the machine, and includes a brake signal outputting part configured to output a brake activation signal and a brake release signal to a mechanical brake for holding the gravity axis; a torque command generating part which generates a torque command value for controlling the position of the servomotor; and a torque limiting value generating part which generates a torque limiting value for limiting the torque command value. The torque limiting value generating part continuously reduces the torque limiting value from a first value larger than a torque corresponding to the gravity force to a second value smaller than the torque corresponding to the gravity force, after the brake activation signal is output. | 2015-05-28 |
20150145466 | DOUBLE WOUND ROTOR TYPE MOTOR WITH CONSTANT ALTERNATING CURRENT OR DIRECT CURRENT POWER SUPPLY INPUT AND CONTROL METHOD THEREOF - A double wound rotor type motor with a constant alternating current or direct current power supply input and a control method thereof is disclosed. The wound rotor type motor includes: a stator in which a coil directly connected to a single phase grid power supply or a direct current power supply is wound; a rotor that is rotatably supported in the stator; a power conversion device that is attached to the rotor and controls a rotor current without connection of a separate external power supply; and a control circuit that is connected to the power conversion device and controls the power conversion device. | 2015-05-28 |
20150145467 | RECHARGEABLE BATTERY TEMPERATURE DETECTION METHOD, POWER MANAGEMENT DEVICE AND ELECTRONIC SYSTEM - A rechargeable battery temperature detection method adapted to an electronic system includes detecting a status of a processor of the electronic system when an external power is input to a power conversion module of the electronic system; determining whether a thermistor of the electronic system is conducted to a fuel gauge or a charge control circuit according to the state of the processor such that the fuel gauge or the charge control circuit determine a temperature sensing result via the thermistor. The thermistor is disposed adjacent to a rechargeable battery and has a resistance which varies with a temperature of the rechargeable battery. The temperature sensing result is related to the resistance. | 2015-05-28 |
20150145468 | DEVICE AND CHIP FOR CONTROLLING CHARGING, AND USER TERMINAL - A device, a system and a chip for controlling charging, and a user terminal are provided. The device for controlling charging includes: a battery detection circuit, a charging control circuit, a charging circuit and a charging interface circuit, wherein the charging circuit is connected with a battery, the battery detection circuit, the charging control circuit and the charging interface circuit respectively; the battery detection circuit is adapted for obtaining a voltage value of the battery; the charging interface circuit is connected with a charging power supply; and the charging control circuit is adapted for transmitting a charging control signal for increasing a charging current of the charging power supply through the charging interface circuit when the battery detection circuit detects that the voltage value of the battery is lower than a preset threshold value. The device for controlling charging can improve charging speed when battery power is low. | 2015-05-28 |
20150145469 | ELECTRONIC DEVICE AND CAR BATTERY CHARGER - An electronic device includes a heat-dissipating base, a first printed wiring board assembly, and a second printed wiring board assembly. The first printed wiring board assembly is disposed on the heat-dissipating base. The first printed wiring board assembly includes a first printed wiring board and at least one first electronic component. The first electronic component is disposed on the first printed wiring board, such that the first printed wiring board assembly has a raised portion and a concave portion relative to the raised portion. The second printed wiring board assembly is at least partially disposed in the concave portion. | 2015-05-28 |
20150145470 | MICRO-ENERGY HARVESTING DEVICE FOR SPACE-LIMITED APPLICATIONS - Implementations of the present invention relate to apparatuses, systems, and methods for harvesting mechanical energy from micro-energy sources and converting that energy into electrical energy. Such mechanical energy sources may be from common motions or processes such as the movement of cars or people. A device for the harvesting of such excess energy may utilize a circulation channel in which magnets may induce currents in coils as the magnets follow a continuous path. | 2015-05-28 |
20150145471 | BANK CARD PRESENCE DETECTION TO AVOID A WIRELESS CHARGER DEMAGNETIZING A BANK CARD - Various embodiments relate to a method, machine-readable medium, and a system for preventing demagnetization of a magnetically sensitive object comprising detecting, by a first identification sensor at a wireless charging transceiver, a foreign object; determining, by a processor using information from the first identification sensor, whether the foreign object is magnetically sensitive; and responsive to a determination that the foreign object is magnetically sensitive, preventing the wireless charging transceiver from operating. | 2015-05-28 |
20150145472 | MOTOR VEHICLE HAVING AN ENERGY STORAGE DEVICE - A motor vehicle is disclosed having an energy storage device that is replenished with energy by inductive coupling with a fixed inductive charging point using a vehicle mounted inductive coupling member. A three dimensional positioning mechanism is used to position the inductive coupling member so that it is aligned with and positioned in close proximity to the fixed charging point thereby ensuring a high coupling efficiency between the inductive coupling member and the fixed charging point. The use of a three dimensional positioning mechanism has the advantage that the inductive coupling member can be positioned accurately without the need to position the motor vehicle accurately. | 2015-05-28 |
20150145473 | METHOD FOR TRANSMITTING DATA AND WIRELESS CHARGER FOR IMPLEMENTING SAME - A method for transmitting data and a wireless charging equipment using the same are disclosed. When the wireless charger transmits data, an output current of the wireless charger is controlled at a preset current value so that there is a higher variation in amplitude of a current or a voltage on an inductive element to thereby enable a signal receiver to demodulate the signal. At the end of data transmission, the output current is resumed consistent with a driving current of the load at the moment. The present disclosure can address the problem of impossible normal communication in the wireless charger at the circumstance of a very low driving current of the load without any increase in cost and complexity of the circuit. | 2015-05-28 |
20150145474 | DEVICE FOR WIRELESS CHARGING OF A TERMINAL, INTENDED TO BE INSTALLED IN AN AUTOMOBILE | 2015-05-28 |
20150145475 | EFFICIENCY AND FLEXIBLITY IN INDUCTIVE CHARGING - A system and method for improved efficiency and flexibility in inductive charging. In accordance with an embodiment, the system comprises a base unit having one or more primary coils, wherein each primary coil is configured so that when a current is passed through it, a magnetic field is generated in a direction substantially perpendicular to the plane of the primary coil; one or more secondary coils or receivers associated with one or more mobile device; and one or more components within the base unit and/or the mobile device, for improving efficiency and/or flexibility in inductive charging. When the one or more mobile device is placed in proximity to the base unit, the perpendicular magnetic field is used to inductively generate a current in the one or more secondary coils or receivers associated therewith, to charge or power the device. | 2015-05-28 |
20150145476 | POWER SUPPLY APPARATUS - A power supply apparatus includes: a connection unit to which a battery pack is connected; a power conversion unit which converts direct current power output from the battery pack via the connection unit into a first power; a power plug which is connected to an external power source; a power supplying unit to which a power receiving unit of the external apparatus is connected to supply the first power output from the power conversion unit or a second power which is the power supplied from the external power source via the power plug; and a switching unit which switches between outputting the first power to the power supplying unit and outputting the second power to the power supplying unit. | 2015-05-28 |
20150145477 | METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE IN POWER SYSTEM - A method and a device for charging an electric vehicle in a power system are provided. The method includes: obtaining a first electric vehicle connected to the power system, and obtaining a rated charging power and a first charging requirement; determining a first charging period corresponding to the first electric vehicle; determining a forecast period, and obtaining a second electric vehicle to be connected to the power system; revising the first charging period to obtain a second charging period, and obtaining a second charging requirement and a maximum charging power; establishing a charging model, establishing a first constraint of the charging model, and establishing a second constraint of the charging model; and solving the charging model under the first constraint and the second constraint to obtain an optimal charging power so as to charge each first electric vehicle under the optimal charging power. | 2015-05-28 |
20150145478 | METHOD AND DEVICE FOR CHARGING ELECTRIC VEHICLE IN POWER SYSTEM - A method and a device for charging an electric vehicle in a power system are provided. The method includes: obtaining a plurality of electric vehicles connected to the power system at a dispatching time, and obtaining a rated charging power and a charging requirement at the dispatching time; determining a charging period corresponding to the plurality of electric vehicles; determining a forecast period, and obtaining a charging requirement, a remaining charging energy capacity and a maximum charging power; establishing a charging model of the plurality of electric vehicles, establishing a first constraint of the charging model, and establishing a second constraint of the charging model; and solving the charging model under the first constraint and the second constraint to obtain an optimal charging power of each electric vehicle at each charging time in the charging period so as to charge each electric vehicle under the optimal charging power. | 2015-05-28 |
20150145479 | STATUS INDICATING ELECTRIC VEHICLE CHARGING STATION, LIGHTGUIDE ASSEMBLY AND METHODS - An electric vehicle charging apparatus is disclosed. The electric vehicle charging apparatus has a housing having a body, and a light guide assembly adapted to display a status of the electric vehicle charging apparatus as a halo. The light guide assembly generates and displays one or more colors, flashing lights, or combinations thereof on a light exit region having a tilted side facing surface. In another aspect, a hinged lid configuration of the electric vehicle charging apparatus is provided having a mechanical control panel including lighted status indicators on the lid. Methods of operating the electric vehicle charging apparatus are provided, as are other aspects. | 2015-05-28 |
20150145480 | HIGH CAPACITY BATTERIES WITH ON-DEMAND FAST CHARGE CAPABILITY - An embodiment provides an apparatus, including: apparatus components; a battery pack comprising a high charge rate cell component, the battery pack supplying power to one or more of the apparatus components; a processor; and a memory device accessible to the processor and storing code executable by the processor to: apply a normal rate of charge to a cell component of the battery pack; accept user input to switch the normal rate of charge to a second rate of charge which is higher than the normal rate of charge; and apply the second rate of charge to the high charge rate cell component based on the user input. Other aspects are described and claimed. | 2015-05-28 |
20150145481 | Battery Control Device and Electricity Storage Device - A battery control device that controls a battery module in which a plurality of cell groups, in each of which a plurality of cells are connected in series, are connected in series or series-parallel, includes: a plurality of cell controller ICs that control each of the plurality of cell groups; and one or more connectors that are provided for connecting the plurality of cell controller ICs to the battery module; wherein: the plurality of cell controller ICs include first and second cell controller ICs that are provided in sequence, so as to control two or more of the cell groups that are connected in series; and an auxiliary connection member (a pin) is provided for connecting GND terminal side wiring of the first cell controller IC and VCC terminal side wiring of the second cell controller IC together, externally to the battery control device. | 2015-05-28 |
20150145482 | NOVEL LITHIUM ION BATTERIES - A lithium ion battery having a plurality of cells connected in series, in parallel, or both internally within a sealed case. Also provided is a lithium ion battery having externally connected cells. | 2015-05-28 |
20150145483 | DEVICE OF CONTROLLING CHARGE AND DISCHARGE OF BATTERY, METHOD AND STORAGE MEDIUM - A device of controlling a charge and discharge of a battery, the device includes, a storing device configured to store a plurality of charge and discharge control plans and an unplanned use history list, and a control device configured to acquire the charge and discharge state of a first battery, compares acquired charge and discharge state with the charge and discharge state defined in the charge and discharge control plan, detects a first unplanned use, estimates duration time and charge and discharge state of the first unplanned use based on the unplanned entry corresponding to the first unplanned use, corrects the charge and discharge control plan of the first battery so as to have the estimated charge and discharge state in estimated duration time, and corrects the charge and discharge control plan of a second battery, which has the estimated charge and discharge state in the estimated duration time. | 2015-05-28 |
20150145484 | PROTECTION CIRCUIT FOR SECONDARY BATTERY, BATTERY PROTECTION MODULE, BATTERY PACK, AND METHOD - A protection circuit for protecting a secondary battery includes a controller that closes a charging path for charging the secondary battery with a charger when a charge preventing condition is satisfied, the charging path being between a terminal of the secondary battery and an input-output terminal for connecting the charger and an electronic apparatus, opens the charging path when a discharging current from the secondary battery to the electronic apparatus is detected while the charge preventing condition is satisfied and the charging path is closed, and temporarily closes the charging path when a predetermined period of time passes after the charging path is opened, to determine whether the discharging current is flowing. | 2015-05-28 |
20150145485 | POWER-FACTOR-CORRECTION (PFC) APPARATUS AND METHOD - The various embodiments may include a power supply having a first loop in communication with a power stage of the power supply. A second loop in communication with the first loop may generate a negative reactance value that increases a power factor for the power supply to approximately one. A power supply may also include a rectifier coupleable to an input supply. A power factor compensation circuit coupled to the rectifier may generate a negative reactance. The negative reactance may reduce a phase angle between a current and a voltage provided to the input supply. A method may include sensing an output of a power supply, and adjusting the sensed value. The adjusted value may be compared to a reference value to generate an error value. The error value and a negative reactance value may be combined and the result may be provided to the power supply. | 2015-05-28 |
20150145486 | DIGITAL CONTROLLER FOR SWITCHED MODE POWER CONVERTER - In one example, a method includes receiving a voltage value and comparing the voltage value to a reference voltage value to determine a delta voltage value. The method may also include determining a reference current value based on the delta voltage value. The method may also include receiving a current value and comparing the current value to the reference current value to determine a delta current value. The method may also include determining a threshold value based on the delta current value, where the threshold value is used to define a control signal that controls a power converter. | 2015-05-28 |
20150145487 | Method and Device for Generating an Adjustable Bandgap Reference Voltage - According to an embodiment, generating an adjustable bandgap reference voltage includes generating a current proportional to absolute temperature (PTAT). Generating the PTAT current includes equalizing voltages across the terminals of a core that is designed to be traversed by the PTAT current. Generating the adjustable bandgap reference also includes generating a current inversely proportional to absolute temperature (CTAT), summing the PTAT and the CTAT currents and generating the bandgap reference voltage based on the sum of the currents. Equalizing includes connecting-across the terminals of the core a first fed-back amplifier with at least one first stage arranged as a folded setup and including first PMOS transistors arranged according to a common-gate setup. Equalizing also includes biasing the first stage based on the CTAT current. The summation of the PTAT and CTAT currents is performed in the feedback stage of the first amplifier. | 2015-05-28 |
20150145488 | SWITCHING OVERLAP AVOIDANCE SYSTEM FOR CONTROLLING POWER SUPPLY SYSTEM - A method according to an exemplary aspect of the present disclosure includes, among other things, controlling a power supply system to avoid an over-voltage event across one or more switching devices of the power supply system, the controlling step based on switching overlap information that includes instructions for either advancing or retarding a switching signal associated with at least one of the switching devices. | 2015-05-28 |
20150145489 | ZERO-CROSSING DETECTION CIRCUIT AND METHOD FOR SYNCHRONOUS STEP-DOWN CONVERTER - In one embodiment, a zero-crossing detection circuit for a synchronous step-down converter, can include: (i) a state determination circuit configured to compare a drain voltage of a synchronous transistor of the synchronous step-down converter against a reference voltage, and to generate a state digital signal indicative of whether a body diode of the synchronous transistor is turned on; (ii) a logic circuit configured to convert the state digital signal into a counting instruction signal; (iii) a plus-minus counter configured to generate a numerical signal in response to the counting instruction signal; (iv) a DAC configured to generate a correction analog signal based on the numerical signal; and (v) a zero-crossing comparator configured to receive the correction analog signal and the drain voltage of the synchronous transistor, and to provide a zero-crossing comparison signal to a driving circuit of the synchronous step-down converter. | 2015-05-28 |
20150145490 | CONTROL METHOD AND CONTROL CIRCUIT FOR SWITCHING POWER SUPPLY - In one embodiment, a method of controlling a switching power supply can include: (i) generating an ideal on time signal according to an input voltage and an output voltage of the switching power supply; (ii) generating a ripple voltage signal having a predetermined constant value when a power switch of the switching power supply is on, and a linearly decreasing value when the power switch is off; (iii) generating a regulating voltage signal according to an output voltage sense signal and the ripple voltage signal; (iv) generating a regulating control signal by comparing the regulating voltage signal against a first reference signal; (v) generating an on time control signal according to the regulating control signal and the ideal on time signal; and (vi) generating a driving signal according to the on time control signal for driving the power switch. | 2015-05-28 |
20150145491 | POWER CONVERTER - There is provided a power converter that is operated by using a power supply of one system and effectively using a current flowing in a load. A charging operation that supplies a charging current and the like to a load | 2015-05-28 |
20150145492 | POWER SUPPLY CONTROL APPARATUS - A power supply control apparatus includes a first adder configured to generate a difference signal based on a target value and a feedback signal; a compensator having a first transfer function Wc(z) and configured to generate a control signal based on the difference signal; a control target having a second transfer function Wp(z) and configured to output an output signal generated in response to the control signal; a disturbance canceller having a third transfer function {l+Wc(z)·Wp(z)}/{Wc(z)·Wp(z)} and configured to generate a disturbance cancelling signal based on the output signal corresponding to a control amount y; a second adder configured to generate a differential disturbance signal based on an output of the first adder and the disturbance cancelling signal; and a filter circuit which generates the feedback signal based on the differential disturbance signal. | 2015-05-28 |
20150145493 | Circuit with Controlled Inrush Current - A circuit is provided with inrush current protection through control of the output current at start-up by a current source that does not rely on the output capacitor and which provides a smooth transition from a controlled current mode during a start-up phase to a voltage regulation mode. | 2015-05-28 |
20150145494 | DEVICE AND METHOD FOR TRACKING MAXIMUM POWER - Provided is a maximum power tracking device. The device includes: a battery outputting a first power; a switching unit changing the first power into a second power in response to a switching control signal; and a pulse modulation generation unit adjusting a pulse width of the switching control signal on the basis of the first power and adjusting a frequency of the switching control signal on the basis of the first power and the second power. | 2015-05-28 |
20150145495 | SWITCHING REGULATOR CURRENT MODE FEEDBACK CIRCUITS AND METHODS - The present disclosure includes circuits and methods for controlling the operation of a switching regulator. In one embodiment, the present disclosure includes a circuit comprising a switching regulator with a current control loop comprising a capacitor configured to store a first voltage during a first phase and configured to boost a voltage produced by an output current through a low side switching device by the first voltage in a second phase. Circuitry compares the boosted voltage to a control voltage produced by a control current through a replica device corresponding to the low side switching device. | 2015-05-28 |
20150145496 | METHOD OF FORMING A SWITCHED MODE POWER SUPPLY CONTROLLER DEVICE WITH AN OFF MODE AND STRUCTURE THEREFOR - At least one embodiment is directed to a semiconductor voltage controller comprising: a start-mode circuit associated with a start-mode; and an off-mode circuit associated with an off-mode, where the voltage controller can be configured to receive a feedback signal and an off-mode signal from a single input and provide an output voltage, where the voltage controller can be configured to be in the off-mode when the feedback signal is less than a skip level and the feedback signal is less than a HV control level, and where the voltage controller can be configured to be in start mode when the feedback signal is greater than HV control level and Vcc is below a Vcc-start. | 2015-05-28 |
20150145497 | LOW-LOSS STEP-UP AND STEP-DOWN VOLTAGE CONVERTER - A switch-mode DC-DC voltage converter including a boost stage in the form of a charge pump and a buck stage. Control circuitry is provided that enables the operation of the buck stage while the charge pump stage is also enabled, followed by disabling of the charge pump stage as the input voltage and output voltage increase. The buck converter stage is constructed so that it regulates the output voltage at a voltage above that which disables the charge pump stage. Conduction losses in the main current path, due to the necessity of a power FET or other switching device, are avoided. | 2015-05-28 |
20150145498 | PWM GENERATION FOR DC/DC CONVERTERS WITH FREQUENCY SWITCHING - A method for generating a pulse width modulation (PWM) control signal includes generating a sawtooth ramp signal at a first frequency under standard operating conditions using a ramp generator, generating a PWM square wave having a rising edge at a falling edge of the sawtooth ramp signal and a falling edge when the sawtooth ramp signal exceeds an error threshold, adjusting the frequency of the sawtooth ramp in response to a changed operating parameter of the ramp generator, and adjusting a peak input voltage of the ramp generator simultaneous with adjusting the frequency of the sawtooth ramp, thereby preventing one of a voltage overshoot and a voltage undershoot. | 2015-05-28 |
20150145499 | INTERRUPT PROTECTION CIRCUITS, SYSTEMS AND METHODS FOR SENSORS AND OTHER DEVICES - Embodiments relate to circuits, systems and methods for providing interruption protection for sensors and other devices. One example embodiment includes an interruption protection circuit comprising at least one charge pump and at least one buffer capacitor configured to maintain and/or provide sufficient voltage for output signals of sensors or other devices during micro-breaks or other interruptions. | 2015-05-28 |
20150145500 | A.C. POWER MEASURING APPARATUS AND A.C. POWER MEASURING METHOD - An A.C. power measuring apparatus includes a voltage detecting unit that detects voltage waveforms of each of phases of a set of insulated cables for supplying a three-phase A.C. power to a load, by performing a contactless measurement by electrostatic capacitance coupling, and a current detecting unit that detects current waveforms of the set of insulated tables, by performing a contactless measurement by electromagnetic induction coupling. The apparatus further includes a processing unit that computes a power to be supplied to the load, based on line-to-line voltage waveforms, the current waveforms, and prescribed voltage values, by normalizing the voltage waveforms of each of the phases so that as amplitude ratio of the voltage waveforms becomes in accordance with a grounding type of the three-phase A.C. power, and obtaining the line-to-line voltages of the set of three insulated cables based on the normalized voltage waveforms of each of the phases. | 2015-05-28 |
20150145501 | SYSTEMS AND METHODS FOR CURRENT AND VOLTAGE MONITORING - A cable for monitoring current and voltage includes a plug, a socket, first and second conductors extending from the plug to the socket, a current and voltage monitoring module, a transceiver, and a housing. The current and voltage monitoring module is coupled to the first and second conductors, and is configured to measure current and voltage usage levels of the conductors. The transceiver is coupled to the current and voltage monitoring module and is configured to receive data related to the current and voltage levels and transmit the data related to the current and voltage levels. The housing is configured to house the current and voltage monitoring module, the transceiver and one of the socket and the plug. | 2015-05-28 |