20th week of 2017 patent applcation highlights part 64 |
Patent application number | Title | Published |
20170141586 | Battery Management Circuit - A battery management circuit maintains voltage balance during charging and discharging of a multi-cell, series connected battery stack. The circuit prevents any cell voltage from dropping below a voltage at which degradation of the battery can start. Each of the battery connections are connected with a first polarity across one secondary winding of a transformer through a first diode and connected with a polarity opposite to the first polarity across another secondary winding of the transformer through a second diodes, where, for the cell connections corresponding to each battery except the last in the series, the secondary winding connected through the corresponding first diode is the same as the secondary winding connected through the second diode to the cell connections corresponding to the subsequent battery in the series. The circuit also provides high efficiency voltage balancing during charging of the battery stack. | 2017-05-18 |
20170141587 | ELECTRIC POWER CONTROL SYSTEM, BATTERY CONTROL SYSTEM, BATTERY CONTROL DEVICE, BATTERY CONTROL METHOD, AND RECORDING MEDIUM - A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system includes a communication characteristics detection unit that, for each of the plurality of batteries, detects characteristics of communication paths between the batteries and the battery control system within the communication network. The battery control system includes a selection unit which selects, from among the plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of the electric power system. The battery control system includes a control unit that supplies operation instructions that instructs the regulating batteries that were selected in the selection unit to perform a charging or discharging operation. | 2017-05-18 |
20170141588 | METHOD AND APPARATUS FOR BATTERY EQUALIZATION, AND BATTERY PACK USING THE SAME - A method and an apparatus for charge equalization of batteries, and a battery pack using such a method are provided. A method of charge equalization of batteries involves determining a ratio between first state difference information for each of the batteries and second state difference information calculated based on values of items included in the first state difference information, and defining an output value for each converter corresponding to each of the batteries based on the ratio. | 2017-05-18 |
20170141589 | Battery System - In a battery system that connects a plurality of types of batteries through a switch SW, when the switch SW is switched at a voltage (charge rate), it has been possible to increase a stored charge during charging, depending on the DC resistance of the battery. An object of the present invention is to provide switch SW switching control so that the stored charge can further be increased. A first feature of the present invention is to provide a battery system in which a first battery and a second battery are connected in parallel through the switch SW, including an estimator which estimates the charging current by measuring the resistance and OCV of each battery. The battery system can further increase the stored charge by switching to a switch SW combination that can increase the stored charge. | 2017-05-18 |
20170141590 | SYSTEMS AND METHODS FOR BALANCING MULTI-CELL BATTERIES WITH A TRANSFORMER AND A RECTIFIER CIRCUIT - Systems and methods for balancing multi-cell batteries are provided. In one embodiment, the battery balancing circuit includes a battery including a plurality of cells coupled in series, a first terminal and a second terminal, a transformer including a primary winding and a plurality of secondary windings, where each secondary winding is coupled to one of the plurality of cells via a secondary switch and a rectifier circuit, where the primary winding is coupled between the first terminal and the second terminal of the battery, a primary switch in series with the primary winding of the transformer, and a control circuitry coupled to the primary switch, the plurality of secondary switches, and each of the plurality of cells. | 2017-05-18 |
20170141591 | BALANCED BATTERY CHARGING DEVICE - The battery charging device contains at least a first charging battery, at least a second charging battery, and a control module parallel-connected to the first and second charging batteries. The control module contains a control unit, a detection element, and a switch element. The control unit is configured with a current threshold. The detection element detects a total current from the first and second charging batteries. The control unit triggers the switch element to disconnect the first charging battery when the total current is greater than the current threshold. The control unit then triggers the switch element to reconnect the first charging battery when the total current drops below the current threshold. | 2017-05-18 |
20170141592 | LOAD SIDE METHOD OF BLOCKING CHARGER VOLTAGE FROM A BATTERY LOAD - Methods and apparatus for a protection circuit for a battery and a battery connected device during charging are provided. In one embodiment, the apparatus includes a load-blocking switch connected between a rechargeable battery and an electronic device and a charge-blocking switch connected between the rechargeable battery and a charger. The apparatus also includes a safety circuit to detect a voltage across and the current flowing through the rechargeable battery. The safety circuit opens the load-blocking switch and the charge-blocking switch when it detects that the voltage across or the current flowing through the battery exceeds a predetermined threshold. | 2017-05-18 |
20170141593 | POWER SAVING DEVICE WITH POWER SUPPLY - The present disclosure provides a power saving device with power supply, comprising a charger power circuit, a receptacle, a plug detection unit, an ON/OFF control circuit and a power output enable circuit. The plug detection unit uses a mechanical or electrical detection apparatus to detect whether a plug-in device is inserted or not. When there is no plug-in device in the receptacle, the power output enable circuit will cut off the power to the charger power circuit. So the power consumption of the power saving device is reduced while no plug-in device is inserted into the receptacle. | 2017-05-18 |
20170141594 | MOBILE CHARGING DOCK - A mobile docking station that includes: a casing; a plurality of openings in the casing; a cord extending through each opening; a plug at a distal end of each cord; and a power cord extending from the casing, where the power cord supplies power to the cords. Preferably each cord is retractable back into each respective opening. In one particular embodiment, the casing preferably accommodates a tissue box and includes an opening to allow the dispensing of tissues. | 2017-05-18 |
20170141595 | DEVICE FOR CHARGING ELECTRICAL APPLIANCES - A device for charging electrical appliances comprising a connector for connection to an electrical appliance, and characterized in that it comprises a plate that can be mounted on a wall and a cable that can be extended from an idle position to a position of use, said connector being arranged at one of the ends of said cable. | 2017-05-18 |
20170141596 | VOLTAGE GROUPING OF ENERGY STORAGE UNITS - Systems and methods for controlling an energy storage system are provided. In one embodiment, an energy storage system can include a plurality of energy storage units and a plurality of buses. The energy storage system can further include a control system that can be configured to receive one or more signals indicative of a voltage associated with each energy storage unit of the plurality of energy storage units. The control system can be configured to send one or more command signal to selectively couple each energy storage unit to one of the plurality of buses based at least on the voltage associated with the energy storage unit. | 2017-05-18 |
20170141597 | Programmable Power Module for Mobile Cart - A mobile cart is disclosed, having a platform mounted above a wheeled based by a generally upright post and at least one battery docking unit on the post for the detachable mounting of a battery. A programmable control unit is associated with the at least one battery docking unit having a power output terminal at which a voltage is presented as the battery discharges. The control unit includes a data bus, an integrated circuit DC-DC converter, and a programmable digital potentiometer connected to the DC-DC converter in such a way as to set its DC output voltage to a selected value in accordance with data received by the potentiometer from a remote computing device using the data bus. The selected output voltage is presented at the power output terminal in accordance with said data. | 2017-05-18 |
20170141598 | ELECTRIC BATTERY COMPRISING AN ELECTRONIC MANAGEMENT SYSTEM - A battery including: a plurality of electrical energy storage units; associated with each unit, an interconnection circuit including first and second switches series-connected between a positive terminal and a negative terminal of the unit, the second switches of the different interconnection circuits being series-connected between a positive terminal and a negative terminal of the battery; associated with each interconnection circuit, a self-contained control circuit capable of causing the turning off of the first switch and the turning on of the second switch to shunt the unit; and a management unit connected to the positive and negative terminals of the system, capable, when a unit is shunted, of detecting a corresponding voltage drop between the positive and negative terminals of the battery, and of accordingly controlling the current flowing through the battery. | 2017-05-18 |
20170141599 | BATTERY CONDITIONING APPARATUS - The present invention relates to a battery conditioning apparatus for conditioning a battery. The apparatus includes a pulse generator circuit generating pulses applied to the battery. A loading circuit is separately and independently actuated from the pulse generator circuit to load the battery separately and independently whilst the pulses from the pulse generator circuit are applied to the battery for conditioning. Concurrently applying the pulses to and loading the battery results in improved battery conditioning when compared with known conditioning methods. | 2017-05-18 |
20170141600 | SEAT WIRELESS CHARGER - A seat control unit (SCU) for use in an aircraft can include a base that has a wireless charger configured to transmit a wireless power signal and a case at least partially enclosing the wireless charger. The SCU can also include a control device having a remote controller configured to wirelessly control a system of the aircraft and a battery coupled to the remote controller and configured to store electrical energy. The control device can also include a wireless receiver configured to receive the wireless power signal from the wireless charger and transmit associated power to the battery and an outer casing at least partially enclosing at least one of the remote controller or the wireless receiver. | 2017-05-18 |
20170141601 | CHARGING SYSTEMS FOR DEVICES RELATED TO DIALYSIS TREATMENTS - In one aspect of the invention, a method of charging a medical device includes receiving radiofrequency signals from a remote machine remote from the medical device via a receiver of the medical device. The method includes converting the radiofrequency signals into electrical energy via a generator of the medical device. The method includes storing the electrical energy in an energy cell of the medical device. The method also includes powering a power consumption component of the medical device by transmitting the energy from the energy cell to the power consumption component. | 2017-05-18 |
20170141602 | ELECTRONIC APPARATUS - An electronic apparatus comprises a power receiving unit configured to receive electric power transmitted from a power transmitting apparatus in a non-contact manner, and charge a battery that powers the electronic apparatus with the electric power; a temperature monitor configured to change output according to temperature; and a charge controller configured to instruct the power receiving unit to execute charge control of the battery based on the output of the temperature monitor. | 2017-05-18 |
20170141603 | MULTIPLE INPUT/MULTIPLE OUTPUT SWITCHING CONVERTER - In accordance with embodiments of the present disclosure, an apparatus may include a power converter having a power supply input for receiving an input power supply voltage generated by a power supply, an output for generating an output voltage to a load, and a power inductor coupled between the power supply input and the output may and further include an energy storage element coupled to the power supply input, the power inductor, and the output such that operation of the power inductor is split temporally between delivering energy to the energy storage element and delivering energy to the load, and operation of the energy storage element is split temporally between delivering energy to the load and receiving energy from one or both of the power supply and the load. | 2017-05-18 |
20170141604 | WIRELESS POWER TRANSFER METHOD, APPARATUS AND SYSTEM - The present disclosure relates to a foreign object detection method of a wireless power transmitter, and the method may include acquiring the frequency characteristics of a current flowing through a coil within the wireless power transmitter, comparing a peak frequency with a resonant frequency, and detecting whether or not the foreign object is placed on the transmitter through the comparison. In addition, the present disclosure relates to an interference avoidance method of a wireless power transmitter, and the method may include connecting a head unit of an automobile in a wireless manner through a communication device, receiving a first signal for avoiding interference from the head unit to stop wireless charging or change a first frequency band to a second frequency band, and receiving a second signal from the head unit to resume the wireless charging or change to the first frequency band. | 2017-05-18 |
20170141605 | WIRELESS POWER TRANSFER SYSTEM - A transmitter for transmitting wireless power according to an embodiment of the present invention includes a transmission side communication unit, wherein the transmission side communication unit transmits a first control signal to a reception side communication unit, then receives a second control signal including information about an amount of power of the first control signal from the reception side communication unit, and controls the amount of power of the first control signal by comparing the amount of power of the first control signal with a predetermined range based on the second control signal. | 2017-05-18 |
20170141606 | HANDHELD-TERMINAL CHARGING DEVICE - This handheld-terminal charging device has a plurality of charging coils, a plurality of detection coils, and a control unit that is electrically connected to said charging coils and detection coils. The control unit drives the plurality of detection coils and watches for impedance changes that said detection coils detect when thus driven. If a detection coil detects an impedance change, a charging coil corresponding to said detection coil is selected from among the plurality of charging coils and a magnetic field is outputted from the selected charging coil. If a response signal that has been agreed upon with a handheld terminal is received in response to said magnetic field, the selected charging coil is used to charge said handheld terminal. | 2017-05-18 |
20170141607 | INTEGRATED CIRCUIT FOR WIRELESS CHARGING AND OPERATING METHOD THEREOF - An integrated circuit for wireless charging and a method for wireless charging by an integrated circuit are provided. The integrated circuit includes a first wireless communication unit configured to support a first wireless communication method; a first route selection unit configured to perform a selection from among a first power input from a battery and a second power input according to wireless charging to be allowed as input; a power block configured to receive the selected power from the first route selection unit, and provide the received power to the first wireless communication unit; and a controller configured to control an operation of the first route selection unit. | 2017-05-18 |
20170141608 | POWER CHARGING MODULE AND METHODS OF USING SAME - A power charging module includes a controller, a charging port, and a temperature sensor. The charging port delivers power to an external device plugged into the charging port. The temperature sensor provides a sensed temperature to the controller. A standard maximum power output is delivered to the charging port if the sensed temperature is categorized in a nominal thermal condition range, a modified maximum power output is delivered to the charging port if the sensed temperature is categorized in an intermediate thermal condition range, and power output to the charging port is discontinued if the sensed temperature is categorized in a critical thermal condition range. | 2017-05-18 |
20170141609 | Power Control Circuits and Related Uninterruptible Power Supply Systems - Power control systems are provided including a digital controller configured to control gating mechanism for power switches responsive to an input from a power conversion circuit. The digital controller includes a conversion circuit, a modulation circuit and a gating control circuit. The system further includes an analog circuit comprising a filter, a current limiter and a compare circuit. The current limiter is configured to control a magnitude of a current pulled through a power convertor during a device switching operation. | 2017-05-18 |
20170141610 | System and Method for Intelligent Static Transfer Switch with Smart Home Power Management - Systems and methods for intelligent transfer and management of power maintain a continuous and cost efficient supply of power to electrical loads in a residential or commercial unit when different energy resources such as utility, backup generators, energy storage systems and distributed energy resources (e.g. solar and wind) are available. | 2017-05-18 |
20170141611 | FURNITURE WITH EMBEDDED ELECTRICAL POWER SOURCES WITH ELECTRICITY SUPPLIED BY NON-CONTIGUOUS POWER SUPPLIES WITHOUT A CORD OR TETHER - A furniture product encompassing a method and system for facilitating charging of devices directly from a piece of furniture without “wall attached” tether or cord. The system performs the function of providing power to household electronic devices such as, but not limited to, mobile telephones, tablets and portable computers. While the method of charging the device is flexible to accommodate various charging schemas, no cord or tether from the piece of furniture to a wall plug is required. | 2017-05-18 |
20170141612 | WIRELESS ENERGY TRANSMISSION CONTROL METHODS AND CONTROL APPARATUSES - Wireless charging technology and wireless energy transmission control methods and control apparatuses are disclosed. A method comprises: receiving an optical signal from a wireless energy receiver device; and determining, according to an orientation of the optical signal, a wireless energy transmission scheme of a wireless energy transmitter device corresponding to the orientation. A corresponding wireless energy transmission scheme can be rapidly determined according to an orientation of an optical signal from a receiver device. | 2017-05-18 |
20170141613 | POWER TRANSFER DEVICE AND WIRELESS POWER TRANSFER APPARATUS - This power transfer device is provided with an alternating current power supply, primary-side coil, control unit, control power supply, and switch. The alternating current power supply has a first converter that converts external power into first direct current power and a second converter that outputs power by converting direct current power into alternating current power at a predetermined frequency. The second converter outputs, as alternating current power, first alternating current power in the cases where the first direct current power is inputted from the first converter, and outputs, as alternating current power, a second alternating current power having a power value smaller than that of the first alternating current power in the cases where second direct current power is inputted from the control power supply. | 2017-05-18 |
20170141614 | WIRELESS POWER TRANSMISSION APPARATUS AND METHOD - A wireless power transmission method includes operating at least one source resonator among a plurality of source resonators; detecting a waveform while the at least one source resonator resonates; determining, based on the detected waveform, a source resonator for wireless power transmission; and wirelessly transmitting power to a target resonator using the determined source resonator. | 2017-05-18 |
20170141615 | APPARATUS AND METHOD FOR REDUCING ELECTROMAGNETIC WAVE IN WIRELESS POWER TRANSMISSION DEVICE - Provided is a wireless power transmission device to reduce an electromagnetic wave except for a signal to be transmitted during wireless power transmission, the wireless power transmission device including a transmitter configured to generate a magnetic field by inputting a high-frequency power signal generated by a transmission circuit into a first coil, a receiver configured to generate an induced current by allowing the generated magnetic field to pass through a second coil, and a reducer configured to reduce a harmonic component of the high-frequency power signal using a third coil inserted on a path between the transmitter and the receiver. | 2017-05-18 |
20170141616 | Contactless Connector System Having Feedback From Secondary Side - A contactless connector system is disclosed. The contactless connector system has a power transmitting connector and a power receiving connector. The power transmitting connector has a primary resonant circuit generating a magnetic field at a primary inductive coupler, a primary data transceiver, and a primary control unit connected to and controlling the resonant circuit and the primary data transceiver. The power receiving connector has a secondary inductive coupler electromagnetically coupled to the primary inductive coupler and receiving electric power from the primary inductive coupler, a secondary data transceiver connected with the primary data transceiver to form a bi-directional data link with the primary data transceiver, and a secondary sensing unit measuring at least one secondary operational parameter. The primary control unit controls the resonant circuit based on the at least one secondary operational parameter. | 2017-05-18 |
20170141617 | NON-CONTACT POWER TRANSMISSION APPARATUS - A non-contact power transmission apparatus accurately determines the kind of object that is placed on the charging deck of the non-contact power transmission apparatus, and, only when a non-contact power receiving apparatus is placed on the power transmission apparatus, allows power transmission and data communication to take place, thereby accurately determining the state of the receiver side and efficiently controlling the transmission of power. In the power transmission apparatus, the power supplied to the non-contact power receiving apparatus is measured, and the output power of the wireless power signal output from two different cores is controlled, thereby allowing the charging operation to be stably conducted even if the non-contact power receiving apparatus is moved anywhere on the power transmission apparatus. The power transmission apparatus improves both the reliability of operation of the non-contact charging system, and the competitiveness of related products, such as portable terminals, battery packs and the like. | 2017-05-18 |
20170141618 | WIRELESS POWER RECEIVER - An automatic tuning assist circuit is coupled with a transmission antenna. Multiple switches SW and a first auxiliary capacitor CA are arranged between a first terminal and a second terminal of the automatic tuning assist circuit. A first control unit is configured to switch on and off the multiple switches SW in synchronization with a driving voltage V | 2017-05-18 |
20170141619 | POWER HARVESTING CIRCUIT AND METHOD - A circuit for use in a power harvesting system provides signals from at least first and second antennae to a summing node through respective diodes. The summing node is coupled to an output node through an output diode, and an output capacitor is provided at the output node. This implements combination of antenna signals within a rectification circuit. | 2017-05-18 |
20170141620 | INTEGRATED CIRCUITS FOR TRANSMITTING WIRELESS POWER, RECEIVING WIRELESS POWER, AND/OR COMMUNICATING WIRELESSLY - The disclosed technology relates to wireless communication and wireless power transmission. In some implementations, the disclosed technology is directed to an integrated circuit having a transmitter that transmits radio frequency (RF) based wireless power and receives signals for detecting the location of a client device. The disclosed technology is also directed to an integrated circuit for a client device that receives power from the transmitter and transmits beacon signals, which the transmitter can use to locate the client device. | 2017-05-18 |
20170141621 | INTEGRATED CIRCUITS FOR TRANSMITTING WIRELESS POWER, RECEIVING WIRELESS POWER, AND/OR COMMUNICATING WIRELESSLY - The disclosed technology relates to wireless communication and wireless power transmission. In some implementations, the disclosed technology is directed to an integrated circuit having a transmitter that transmits radio frequency (RF) based wireless power and receives signals for detecting the location of a client device. The disclosed technology is also directed to an integrated circuit for a client device that receives power from the transmitter and transmits beacon signals, which the transmitter can use to locate the client device. | 2017-05-18 |
20170141622 | Foreign Object Detection In Wireless Energy Transfer Systems - The disclosure features wireless energy transfer systems that include a plurality of sensors coupled to a controller, wherein the controller is configured to: obtain a system calibration state including a set of basis vectors derived from a first set of electrical signals generated by the plurality of sensors with no foreign object debris in proximity to the system; measure a second set of electrical signals from the sensors; calculate a projection of the second set of electrical signals onto the set of basis vectors; calculate a detection signal based on the projection; determine whether foreign object debris is present in proximity to the system by comparing the calculated detection signal to a detection threshold value; and adjust the system calibration state based on the presence or absence of foreign object debris in proximity to the system to generate an updated system calibration state. | 2017-05-18 |
20170141623 | WIRELESS POWER TRANSFER SYSTEMS HAVING GUIDES FOR FOREIGN OBJECT REMOVAL AND METHODS OF FABRICATION AND USE OF SAME - A common problem in wireless charging systems in automotive applications is alignment of the wireless power transfer transmitter and receiver units. Poor alignment leads to poor power transfer capacity and a longer charging time. Costly optical sensors and electromechanical systems may be employed to align the transmitter and receiver units. A solution to this problem is to employ a freely moveable wireless power transmitter in at least one direction that is magnetically attracted to the wireless power receiver unit in the vehicle that does not require electrically powered sensors or mechanical alignment systems. | 2017-05-18 |
20170141624 | DEVICES AND METHODS FOR ADJUSTING WIRELESS RECEIVER POWER DEMAND - Methods and apparatus are disclosed for wirelessly receiving power. In one aspect, an apparatus for wirelessly transmitting power to power or charge a wireless power receiver is provided. The apparatus comprises a transmitter circuit configured to transmit wireless power via a magnetic field sufficient to power or charge a load. The apparatus further includes a processor circuit configured to determine a power level capability of the transmitter circuit. The apparatus further includes a communication transceiver circuit configured to transmit a first communication to the wireless power receiver, the first communication including a request to adjust a power demand from a first power level to a second power level, the first power level being higher than the second power level. The second power level is commensurate with the power level capability of the transmitter circuit | 2017-05-18 |
20170141625 | ELECTRIC COMPONENT INCLUDING CUSTOM METAL GRAIN ORIENTATION - An electrical device includes an electromagnetic component configured to generate a magnetic flux. The electromagnetic component includes a soft magnetically-conductive material configured to pass magnetic flux therethrough along a flux path. The soft magnetically-conductive material includes at least one grain oriented portion having metal grains that are oriented parallel with respect to the magnetic flux. | 2017-05-18 |
20170141626 | DUAL-STATOR ELECTRICAL GENERATION APPARATUS - An apparatus for converting mechanical energy into electrical energy includes a rotor having a first end portion and a second end portion, a first stator including a plurality of magnet poles, and a second stator including a plurality of magnet poles. The rotor is located about a shaft along a rotational axis. The rotor includes a plurality of north and south poles alternating along a circumference of the rotor. The plurality of magnet poles of the first stator are rotated 180 electrical degrees with respect to the plurality of magnet poles of the second stator. | 2017-05-18 |
20170141627 | STATOR, BRUSHLESS MOTOR, STATOR MANUFACTURING METHOD - A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions. | 2017-05-18 |
20170141628 | ROTOR, MOTOR, METHOD FOR MANUFACTURING ROTOR, AND METHOD FOR MANUFACTURING MOTOR - A rotor includes a rotor core, permanent magnets, and a tubular non-magnetic cover. The permanent magnets are arranged along an outer surface of the rotor core in the circumferential direction. The permanent magnets each include a curved outer surface as viewed in the axial direction. The tubular non-magnetic cover covers the outer surfaces of the permanent magnets. The rotor core includes at least two stacked cores. Each stacked core includes a stack of core sheets. One of the stacked cores is formed from a material having a lower hardness than the other stacked core. | 2017-05-18 |
20170141629 | ROTOR WITH PERMANENT MAGNETS WITH FLUX CONCENTRATION FOR A ROTARY ELECTRICAL MACHINE - A rotor with permanent magnets for a rotary electric machine including a plurality of alternating north poles and south poles and made up of a plurality of permanent magnets arranged in first recesses extending axially and distributed regularly between a circumferential portion and a central portion of the magnetic mass of the rotor such as to define a plurality of circumferential polar sections, the first recesses being separated by central tabs with a thickness E, the permanent magnets having a polygonal radial section that comprises a substantially rectangular portion next to the circumferential portion adjacent to a substantially trapezoidal portion next to the central portion. The rotor having a ratio R0 (h/E) of a first height h of the trapezoidal portion to the thickness E of a central tab is predetermined such as to maximise the efficiency of the electric machine. | 2017-05-18 |
20170141630 | MOTOR HAVING ROTOR OF OPTIMIZED SHAPE - A motor according to an embodiment of the present invention includes a rotor having a rotor core and a plurality of magnetic poles including permanent magnets provided in the rotor core; and a stator having a stator core in which a plurality of teeth disposed on the side of the outer periphery of the rotor so as to be opposed to the plurality of magnetic poles and slots for containing armature winding wound around the plurality of teeth are formed. The rotor is structured such that the distance r(θ) between the center of the rotor and the outer periphery thereof satisfies the following equations (1) and (2): | 2017-05-18 |
20170141631 | Adjustable High Torque Axial Gap Electric Motor - A high torque axial gap electric motor includes rotor and stator disks containing magnets fixed to their respective faces, where the magnets contain triangular ridges arranged in concentric circles. The face of each rotor magnet ridge is parallel to the face of a stator magnet ridge, creating an air gap with a cross-section that has a zigzag appearance. The preferred embodiment uses a three-phase motor design with multiple rotors and stators and permanent magnets. | 2017-05-18 |
20170141632 | STATOR MANUFACTURING METHOD AND STATOR - A stator manufacturing method that includes a lead wire bending process of inserting a plurality of concentrically wound coils into slots, each of the concentrically wound coils being formed by winding a flat conductive wire for a plurality of turns, each of the slots being formed between every two adjacent teeth extending radially inward from an annular back yoke of a stator core, and bending lead wire portions of the inserted concentrically wound coils projecting in an axial direction from an end surface of the stator core, and a second bending process of bending the lead wire portions using the connection parts as fulcrums so that the lead wire portions approach the end surface of the stator core along the circumferential direction of the stator core after the first bending process. | 2017-05-18 |
20170141633 | MULTIPHASE ELECTRICAL MACHINE AND METHOD OF USE - An electrical machine is provided. The electrical machine includes a stator, a rotor, and a plurality of switches. The stator includes main windings and auxiliary windings. The rotor is couplable to a prime mover configured to turn the rotor relative to the stator to generate at least six phases of alternating current (AC) power at the main windings. The plurality of switches is respectively coupled between the auxiliary windings and groups of the main windings. The plurality of switches is configured to convert the at least six phases to three phases when the plurality of switches is closed. | 2017-05-18 |
20170141634 | STATOR AND BRUSHLESS MOTOR - Each of the coils provided in a stator includes a wire introducing portion where a wire is introduced into a groove, an adjusting portion including the wire wound within the groove, and a plurality of wire layers each of which are aligned adjacent one another along an extending direction of a tooth. Among the plurality of wire layers, wires located on a periphery side-end in the odd-numbered wire layers are separated from an inner circumferential surface of the periphery by a half pitch. | 2017-05-18 |
20170141635 | STATOR FOR ELECTRIC ROTARY MACHINE - A stator for an electric rotary machine including a stator core and a coil, wherein the coil has plural slot coils, each slot coil being inserted into the slot, and plural connection coils, each connection coil connecting the slot coils in a position lying further axially outwards than an axial end face of the stator core, and is constituted in such a way that the slot coil and the connection coil are joined at an abutment portion; the slot coil and the connection coil are formed by plate conductors, the plate conductor having a plate surface that is planar and that intersects a thickness direction thereof; and the plate surface of the slot coil is brought into surface contact with the plate surface of the connection coil in the abutment portion. | 2017-05-18 |
20170141636 | CENTRALLY-DISTRIBUTED CORELESS WINDING - The present invention relates to a centrally-distributed coreless winding, comprising staggered conductors, normal conductors and winding taps, wherein the staggered conductors are concentrated in the middle of the winding, the normal conductors are distributed on both sides of the staggered conductors and the winding taps are located at both ends of the normal conductors, the density in the middle portion of the winding is greater than that of the normal conductors. Compared with the prior art, the invention effectively raises the back electromotive force (BEMF) of the coreless motor and further improves the performance of the motor. | 2017-05-18 |
20170141637 | HOUSEHOLD APPLIANCE ELECTRIC MOTOR TERMINAL DIRECT SOCKET CONNECTION STRUCTURE - The present invention relates to an electrical household appliance comprising an electric motor with a stator having a core around which a coil is wrapped to be connected to a motor power socket by an electrical connection terminal. An electric motor is disclosed, the electric motor comprising a stator which contains a core wrapped with a coil therearound, an electrical connection terminal into which a mag mate terminal having at least one slit is inserted to be electrically connected to the coil through insertion of the coil into the slit. | 2017-05-18 |
20170141638 | Cordless oscillatory hand held apparatus - A cordless oscillatory hand held apparatus, comprises a casing | 2017-05-18 |
20170141639 | CEILING FAN MOTOR STRUCTURE - A ceiling fan motor structure includes a housing, a magnetic ring, and a cover. The housing has an annular wall and a shielding plate which jointly define a receiving room. The open side of the annular wall forms an opening. The housing has an annular edge around the opening. The annular wall has a plurality of projections projecting from the inner wall surface of the receiving room. The magnetic ring has a plurality of recesses on its outer periphery and is placed into the receiving room of the housing in a way in which the recesses are respectively aligned with the projections and in which each projection is placed in the corresponding recess to prevent relative rotation between the magnetic ring and the housing. The cover closes the opening and is fixedly connected to the housing. | 2017-05-18 |
20170141640 | STATOR HAVING SEAL MEMBER, AND MOTOR - A stator includes a first stator part, a second stator part, and an annular seal member. The annular seal member is provided with a plurality of protrusions extending radially outward. A groove part corresponding to the annular seal member, and a plurality of recessed parts, which correspond to the plurality of protrusions of the annular seal member and which are to be connected to the groove part, are formed in at least one of the first stator part and the second stator part. | 2017-05-18 |
20170141641 | ROTOR AND PROCESSING AND ASSEMBLING METHOD THEREFOR - A rotor applicable to a vacuum cleaner motor includes a rotating shaft, a rotor magnetic steel, a load blade, two bearings between the rotor magnetic steel and the load blade, and a pre-tightening spring for providing precompressions to the bearings at two sides. The bearings are arranged between the load blade and the rotor magnetic steel, so that the motor structure is simplified, the overall size of the motor is reduced, and the machining and manufacturing of the vacuum cleaner motor are facilitated. As the pre-tightening spring is arranged between the two bearings, the bearings are close to the load blade as much as possible under the effect of pre-tightening force. | 2017-05-18 |
20170141642 | Electric Motor Comprising a Rotor, a Stator and an Electronic Housing as well as Fan Wheel for an Electric Motor - The invention relates to an electric motor comprising a rotor, a stator ( | 2017-05-18 |
20170141643 | VIBRATION GENERATOR MOVING VIBRATOR BY MAGNETIC FIELD GENERATED BY COIL AND HOLDER USED IN VIBRATION-GENERATOR - A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin. | 2017-05-18 |
20170141644 | VIBRATION GENERATOR MOVING VIBRATOR BY MAGNETIC FIELD GENERATED BY COIL AND HOLDER USED IN VIBRATION-GENERATOR - A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin. | 2017-05-18 |
20170141645 | ELECTROMAGNETIC OSCILLATOR WITH ELECTRICAL AND MECHANICAL OUTPUT - An oscillator typically includes a rotatable drive shaft, at least two pivot members which rotate with the drive shaft, at least one oscillating member which is pivotable back and forth in an oscillating manner and at least one rod mounted on the at least one oscillating member which is movable in response to rotational and pivotal movement of the at least two pivot members so as to cause the oscillating member to pivot back and forth in an oscillating manner. At least one rotatable drive wheel may drive rotatable movement of the drive shaft. A drive mechanism may be used to drive rotation of the at least one drive wheel. At least one generating magnet may be mounted on the oscillating member and movable adjacent an electrically conductive coil for producing an electric current therein. | 2017-05-18 |
20170141646 | BRUSHLESS MOTOR - The bottom end of a rotary shaft contacts a cover part of a cover member, while the top end of the rotary shaft protrudes upwards from a retaining plate. A planar first washer member, which is made from a hard material, is fastened to the rotary shaft, between a bottom plate of a rotor case and an oil-impregnated bearing. The first washer member is disposed without contact with the bottom plate of the rotor case and the oil-impregnated bearing. | 2017-05-18 |
20170141647 | ELECTROMAGNETIC ACTUATOR WITH MAGNETIC TORQUE LIMITER - An electromagnetic actuator having a body and an electric motor driving at least one motion transmission element connected to the body via a brake device, a magnetic torque limiter, and a unidirectional transmission member, the brake device including an electrical activator member so that when the activator member is powered, the unidirectional transmission member is released relative to the body. When the activator member is not powered, the unidirectional transmission member is secured to the body and opposes pivoting of the transmission element in one direction of rotation up to a maximum transmissible torque defined by the magnetic torque limiter. | 2017-05-18 |
20170141648 | VARIABLE GEAR RATIO ELECTRICAL MACHINE - An electrical machine including a moveable permanent magnet configured to generate a first magnetic field. A stator including windings configured to excite a second magnetic field. A moveable inter-pole component located between the permanent magnet component and the stator, the inter-pole component comprising an array of magnetic inter-pole pieces. The speed of movement of the inter-pole component is controlled to set a magnetic gear ratio between the first and second magnetic fields. Also a gas turbine engine, propulsor or thruster incorporating the electrical machine. | 2017-05-18 |
20170141649 | SYSTEM FOR PRODUCING ENERGY VIA USE OF GRAVITY - The present invention is a system for producing energy via use of gravity and then integrating such a force into a system design of energy power generation by translating the force of gravity into potential energy then into kinetic energy and from kinetic energy back into potential energy again. This system can operate 100% mechanically or 100% electromechanically by its own power generation, without the need to utilize the aid of an external source of energy or, if required, with the aid of a minimal amount of external energy. A mechanical sequence is introduced in the system's operation to prolong the operational functionality of motion to its working components to the point where full, or substantially full, and independent recycling of fluids takes place and in the process it generates power to run the system's electricity producing generators and supply electricity to the power grid. | 2017-05-18 |
20170141650 | METHOD FOR OPERATING A DRIVE DEVICE FOR A MOTOR VEHICLE AND CORRESPONDING DRIVE DEVICE - A method for operating a drive device for a motor vehicle, said method includes: permanently supplying an entire exhaust gas of a drive aggregate of the drive device to a turbine of an exhaust gas turbocharger of the drive device via a variable turbine geometry and providing compressed air by means of a compressor coupled with the turbine for the drive aggregate; operating in at least one operating mode of the drive device in each operating point of the drive aggregate an electric machine, which is mechanically operatively connected with the turbine and the compressor, as a generator for braking the turbine; and braking the turbine by means of the electric machine the stronger the further a throttle flap arranged fluidly between the compressor and the drive aggregate is opened, while maintaining the operating point of the drive aggregate constant. | 2017-05-18 |
20170141651 | ROTARY ELECTRIC MACHINE - Gas coolers one of which is housed in a gas cooler chamber provided at an upper portion of a casing and installed near an opening of the casing above each stator coil end, are provided. A gas circulation passage is formed in which a cooling gas circulates through a space A provided at an intake side of each fan→a space B surrounding the fan→the gas cooler chamber→the gas cooler→a space C including the stator coil end→a gap between a rotor and a stator and gas passages formed in the rotor and the stator→a space D between an outer periphery of the stator and the casing→the space A. | 2017-05-18 |
20170141652 | AN ELECTRIC MACHINE - The electric machine comprises a cylindrical rotor with axial first air channels and a stator with axial second air channels. The outer surface of the stator is provided with cooling fins. There is a first air chamber at a first end of the rotor, a second air chamber and an adjacent third air chamber at a second end of the rotor. A first fan circulates internal air from the first axial air channels to the second air channels in a closed air circulation within the electric machine. A second fan blows external cooling air from the outside of the electric machine through the third air chamber and from the outlet opening of the third air chamber along the outer surface of the stator. The number of second air channels in the stator is three. | 2017-05-18 |
20170141653 | STATOR OF ELECTRIC MOTOR AND COOLING STRUCTURE OF ELECTRIC ROTATING MACHINE - To increase a thermal transmission amount between a tooth and an insulation member and reduce a thermal resistance. A stator ( | 2017-05-18 |
20170141654 | SYSTEM FOR THERMAL MANAGEMENT IN ELECTRICAL MACHINES - A component for an electrical machine is disclosed. The component is a stator and/or a rotor. The component includes a core, a magnetic field-generating component, and an oscillating heat pipe assembly. The core includes a plurality of slots and the magnetic field-generating component is disposed in at least one slot of the plurality of slots. The oscillating heat pipe assembly is disposed in the core and the at least one slot of the plurality of slots. The oscillating heat pipe assembly is in contact with the core and the magnetic field-generating component. The oscillating heat pipe assembly includes a dielectric material, and where the oscillating heat pipe assembly has an in-plane thermal conductivity higher than a through-plane thermal conductivity. | 2017-05-18 |
20170141655 | SYSTEM FOR THERMAL MANAGEMENT IN ELECTRICAL MACHINES - A component of an electrical machine is disclosed. The component includes a core including a plurality of slots, a magnetic field-generating component disposed in at least one slot of the plurality of slots, and a heat dissipating element disposed in a slot of the plurality of slots, in contact with the magnetic field-generating component. The heat dissipating element includes a thermally conductive material having an in-plane thermal conductivity higher than a through-plane thermal conductivity. | 2017-05-18 |
20170141656 | LINEAR MOTOR HEAT DISSIPATION STRUCTURE - A linear motor heat dissipation structure including multiple teeth arranged linearly at predetermined intervals each with coil wound around rectangular tube-shaped bobbin, and heat dissipation member provided between adjacent coils that dissipates heat generated coils by transmitting the heat to an external section. Heat dissipation member is sandwiched by bowed sections of coils that are curved outwards within edges of rectangular tube-shaped bobbin due to elastic force of coils. Accordingly, even when there are component tolerances and assembly tolerances, those tolerances are absorbed by the elastic deformation of the bowed section of coils such that the variance in the contact state between coil and heat dissipation member is made smaller so that stable and high heat dissipation performance is achieved. | 2017-05-18 |
20170141657 | ROTOR FOR ROTARY ELECTRIC MACHINE - A slip ring device includes an insulating molded body in which a pair of slip rings and a pair of connecting conductors are provided. The insulating molded body includes a molded body main body portion disposed in a position further from a rotor main body than a bearing provided on a shaft, the slip rings being provided in the molded body main body portion, an opposing portion disposed between the bearing and the rotor main body, and a pair of beam portions that connect the molded body main body portion to the opposing portion, the connecting conductors being provided respectively in the beam portions. A pair of shaft grooves respectively accommodating the pair of beam portions are provided in the shaft. A spreading suppression portion for preventing resin with which a field coil is impregnated from spreading into the shaft grooves is provided in the opposing portion. | 2017-05-18 |
20170141658 | METHOD OF MOUNTING ATTACHMENT PARTS TO AN ELECTRIC MACHINE - In a method of mounting attachment parts to an electric machine, a rotor of the electric machine is non-rotatably supported in a bearing device. A stator of the electric machine is detachably secured in a predefined first installation position by a clamping device, and a first attachment part is mounted to the stator. The clamping device is then released, and the electric machine is operated as motor for a time period sufficient for the stator to rotate in relation to the rotor until reaching a second installation position. The stator is secured by the clamping device in the second installation position, and a second attachment part is mounted to the stator. | 2017-05-18 |
20170141659 | STATOR ASSEMBLY METHOD AND STATOR ASSEMBLY APPARATUS - A stator assembly method and stator assembly apparatus in which coils that have slot housed portions and coil ends formed from a conductor are mounted to an annular stator core that includes slots formed between adjacent teeth that extend from a back yoke toward an inner side in a radial direction. | 2017-05-18 |
20170141660 | STATOR ASSEMBLY METHOD AND STATOR ASSEMBLY APPARATUS - A stator assembly method in which coils that have slot housed portions and coil ends formed from a conductive wire are mounted to an annular stator core that has a plurality of teeth that extend from a back yoke toward an inner side in a radial direction and slots formed between two of the teeth. | 2017-05-18 |
20170141661 | CAGE ROTOR - A cage rotor of an asynchronous machine includes radially closed or partially opened slot recesses. Arranged in the slot recesses are conductor bars which are fixed in the slot recesses by a metal foam. The slot recesses can be produced by punching individual sheet metals which are then stacked to form a laminated core. A short-circuit ring can be attached at one end face of the laminated core to contact the conductor bars. | 2017-05-18 |
20170141662 | BRUSHLESS MOTOR - A cover member has a through hole in the center. A rotary shaft protrudes upward from the through hole, without contact with the cover member. A first washer member, which is made from a hard material, is fastened to the rotary shaft, between the rotor case and the cover member. The first washer member is disposed without contact with the rotor case and the cover member. | 2017-05-18 |
20170141663 | STATOR STRUCTURE AND RESOLVER - A stator structure includes a stator unit, and first and second coil covers, the stator unit having: a stator core having a first main body portion with a plurality of through holes, and a plurality of teeth portions; and a coil, and the first and second coil covers covering the coil from a stator core axial direction; the first and second coil covers have first and second protecting portions and first and second engagement portions; each of the first and second protecting portions is arranged between the teeth portions; the first and second protecting portions arranged between the same teeth portions are in a non-restrained state, where their mutual movement in the axial direction is not restrained; their distal end portions overlap each other; and the first and second engagement portions are engaged with each other through the respective through holes. | 2017-05-18 |
20170141664 | VIBRATION GENERATOR MOVING VIBRATOR BY MAGNETIC FIELD GENERATED BY COIL AND HOLDER USED IN VIBRATION-GENERATOR - A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin. | 2017-05-18 |
20170141665 | Linear Actuator, Hydraulic Bearing, and Motor Vehicle with such a Hydraulic Bearing or Linear Actuator - The invention relates to an electromagnetic linear actuator ( | 2017-05-18 |
20170141666 | LINEAR VIBRATION GENERATION DEVICE - Disclosed is a linear vibration generating device including: a stator including a bracket on which a coil is seated, and a case made of a magnetic material which is engaged to the bracket to form an inner space; a vibrator including a permanent magnet for generating a vibration force in cooperation with the coil, and a weight enclosing a circumference of the permanent magnet; a resilient member which is positioned between the vibrator and the stator to resiliently support vertical oscillation of the vibrator; and a plate which is positioned between the resilient member and the vibrator. | 2017-05-18 |
20170141667 | REPELLING ELECTRIC GENERATOR - An electric generator includes a first magnet, a second magnet, and a first electric conductor. The first magnet may include a first surface. The second magnet may include a second surface having a same polarity as the first surface of the first magnet, wherein the first magnet and the second magnet are oriented such the first surface of the first magnet is opposite of the second surface of the second magnet. The first electric conductor may be positioned in a space between the first surface of the first magnet and the second surface of the second magnet such that the electric generator provides an electric current as a result of a movement of the second magnet relative to the first magnet. | 2017-05-18 |
20170141668 | CHIP-SCALE ELECTROMAGNETIC VIBRATIONAL ENERGY HARVESTER - A chip-scale vibrational energy harvester circuit may include magnets and coils with magnetic cores provided in proximity thereto. Either the magnets or the coils may be mounted on a micro-electromechanical spring system (MEMS) that is coupled to a stationary frame. The counterpart component may be mounted on the stationary frame. When the stationary frame experiences vibrational activity, the magnets and the coils may move with respect to each other, causing variations in the flux passing through the coils. The variations in the flux may induce voltages across the coils. The induced voltages may be rectified and stored as energy for later use. | 2017-05-18 |
20170141669 | ANTI-TILT ELECTROMAGNETIC MOTOR - An anti-tilt electromagnetic motor is provided, including a frame, a support base, a contact assembly, a drive assembly, and an elastic assembly. The support base is arranged movably relative to the frame along an axis. The contact assembly is disposed between the frame and the support base and directly contacts the frame and the support base. The drive assembly is configured to drive the support base to move. The elastic assembly is configured to provide a pre-loading force so as to enable the contact assembly to be compressed by the frame and the support base. | 2017-05-18 |
20170141670 | HYBRID ELECTRICAL MACHINE - A hybrid electric machine includes N phases (N≧1), each phase having first and second assemblies movable relative to one another and each having a set of teeth made up of a number of teeth that are equally distributed according to a plurality of periods, in which: a. the first assembly is made up of two magnetised parts, each including a magnet magnetically coupled with two toothed yokes, the magnet of one of the magnetised parts being polarised along the same axis but in the opposite direction to the polarisation of the magnet of the second magnetised part; b. the second assembly including at least two toothed zones with pitches identical to the pitch of the toothed yokes; c. one of the assemblies has at least two sets of teeth in phase, and the other assembly has at least two sets of teeth which are out of phase by a half-period. | 2017-05-18 |
20170141671 | ELECTRIC POWER GENERATING APPARATUS - What is presented is an apparatus for providing electrical energy for an extended period of time. The apparatus comprises a battery bank for generating electrical energy, a current-conversion component is electrically connected to the battery bank, a secondary generator, a motor, and the load circuit. The motor is started by the electrical energy generated from the battery bank and converts electrical energy into mechanical energy. A primary generator is mechanically connected to the motor and electrically connected to the battery bank. The primary generator converts the mechanical energy from the motor into electrical energy and provides the electrical energy to the battery bank. The secondary generator is also mechanically connected to the motor and converts the mechanical energy from the motor into electrical energy and provides this energy to the current-conversion component. The current-conversion component provides electrical energy to the motor and provides adapted electrical energy to the load circuit. | 2017-05-18 |
20170141672 | MAGNET TO MAGNET COUPLINGS AND DRIVES - A balanced magnetic rotor assembly is disclosed. The balanced rotor assembly including a driver rotor assembly having a first driver rotor assembly and a second driver rotor assembly arranged about a rotational axis and being spaced apart from each other a distance along the rotational axis, and a load rotor being arranged about the rotational axis and arranged between the first driver rotor and the second driver rotor. | 2017-05-18 |
20170141673 | POWER SEMICONDUCTOR ELEMENT DRIVING CIRCUIT - A power semiconductor device driving circuit has a capacitor whose one end is connected with a first or a second main electrode of a power semiconductor device, a first switch for charging the capacitor and a control electrode of the power semiconductor device with electric charges, and a second switch for discharging electric charges; in the case where when the first switch turns on, the control electrode and the capacitor are charged with electric charges through different resistors, electric charges are discharged from the control electrode and the capacitor through one and the same resistor when the second switch turns on; in the case where when the first switch turns on, the control electrode and the capacitor are charged with electric charges through one and the same resistor, electric charges are discharged from the control electrode and the capacitor through different resistors when the second switch turns on. | 2017-05-18 |
20170141674 | CONTROL BOARD FOR POWER CONVERSION DEVICE - A control board where the ground potential includes a first conductor extending from the ground terminal of the power source generator to a first branch, a second conductor branching at the first branch, extending to the temperature detector, and electrically connected to only the temperature detector on a downstream side of the first branch, and a third conductor branching in a direction not directed to the second conductor at the first branch and extending to the drive. | 2017-05-18 |
20170141675 | ENABLING VERY LARGE AND VERY SMALL DUTY CYCLES IN SWITCHING CONVERTERS - In accordance with embodiments of the present disclosure, an apparatus may include a switched-mode power supply and a controller. The switched-mode power supply may include an inductor and a plurality of switches coupled to the inductor. The controller may be configured to control an inductor current of the inductor by controlling the plurality of switches to operate the switched-mode power supply in at least three phases, the at least three phases comprising: a first phase having a first period in which the inductor current increases; and a second phase having a second period in which the inductor current decreases; wherein, at least one of the first period and the second period is defined by a difference in time between switching of at least two switches of the plurality of switches. | 2017-05-18 |
20170141676 | Circuit and Method for High-Accuracy Current Sensing - A circuit for providing a current flowing from a supply voltage into an electric load is presented. The circuit comprises a first circuit branch connected between the supply voltage and an output node connected to the electric load, wherein the first circuit branch comprises a first transistor device, a second circuit branch connected between the supply voltage and a predetermined voltage level, wherein the second circuit branch comprises a series connection of a second transistor device that is a scaled replica of the first transistor device and a current source. The control terminals of the first and second transistor devices are connected to each other. A control circuit is configured to control the voltage at the control terminal of the first transistor device depending on a current flowing through the first transistor device. The application further relates to a method of operating such circuit. | 2017-05-18 |
20170141677 | Switching Device for Power Conversion and Power Conversion Device - The present invention provides a switching device ( | 2017-05-18 |
20170141678 | Power Factor Correction Stage Control During Start-up For Efficient Use Of A Negative Temperature Coefficient Thermistor - A power factor correction (PFC) stage of a power supply unit has a PFC circuit including a rectifier circuit, a PFC controller circuit with a PFC switch, a current sensor connected to the PFC switch, a high frequency bypass capacitor connected between the PFC controller circuit and the rectifier circuit, and a bulk storage capacitor connected between the PFC controller circuit and an output of the PFC stage. The PFC stage also has a negative temperature coefficient thermistor connected in series with the PFC switch and the current sensor. During a start-up of the power supply unit, the PFC controller circuit causes the PFC switch to turn-on until the PFC controller circuit causes the PFC switch to turn-off after a current through the current sensor is sensed as being equal to or greater than a preset value. | 2017-05-18 |
20170141679 | Parallel Connected Inverters - A distributed power system wherein a plurality of power converters are connected in parallel and share the power conversion load according to a prescribed function, but each power converter autonomously determines its share of power conversion. Each power converter operates according to its own power conversion formula/function, such that overall the parallel-connected converters share the power conversion load in a predetermined manner. | 2017-05-18 |
20170141680 | DC-DC CONVERTER WITH TRANSIENT CONTROL AND THE METHOD THEREOF - The present invention discloses a DC-DC converter with constant on time control. The DC-DC converter includes a transient unit to obtain the transient information of a current flowing through a power switching circuit, to slow down the variation of the output voltage, so as to eliminate the overshot issue. | 2017-05-18 |
20170141681 | CHARGE PUMP AND ELECTRONIC DEVICE COMPRISING CHARGE PUMP - A charge pump circuit includes a first PMOS transistor and a first NMOS transistor that are connected in series to a main charging and discharging circuit, where a grid electrode of the first PMOS transistor is controlled by an inverted signal of a first control signal. A grid electrode of the first NMOS transistor is controlled by a second control signal. The circuit further includes a second PMOS transistor that is located in a first branch circuit, where a grid electrode of the second PMOS transistor is controlled by the first control signal; and includes a second NMOS transistor that is located in a second branch circuit, where a grid electrode of the second NMOS transistor is controlled by an inverted signal of the second control signal. The embodiments resolve a problem of leakage currents. | 2017-05-18 |
20170141682 | REFERENCE VOLTAGE GENERATION CIRCUIT AND SEMICONDUCTOR DEVICE - A reference voltage generation circuit includes a voltage dividing circuit, a transistor, and a capacitor. The voltage dividing circuit divides a power-supply voltage into a specified level to generate a predetermined voltage. The transistor has a gate applied with the predetermined voltage and a drain outputting, as a reference voltage, a voltage obtained by adding the predetermined voltage and a threshold voltage of the transistor. The capacitor bypasses the gate and source of the transistor. Moreover, one end of the capacitor is connected to the gate of the transistor, and the other end of the capacitor is connected to the source of the transistor and ground. Furthermore, an electric charge output source which outputs an electric charge is connected to the drain of the transistor. | 2017-05-18 |
20170141683 | CURRENT THRESHOLD DETECTION IN SYNCRONOUS REGULATION - A synchronous regulator controller, including a synchronous switch that is coupled between a first node and a second node. The controller also includes a first voltage divider that includes a first resistive device that is coupled between the first node and a third node, and a second resistive device that is coupled between the third node and a second node. The controller also includes a comparator having a first input that is coupled to the first node, and a second input that is coupled to a forth node. The controller also includes a current source that is arranged to provide a current to the fourth node. The controller also includes a third resistive device that is coupled between the third node and the fourth node. | 2017-05-18 |
20170141684 | Method and System for DC-DC Voltage Converters - On embodiment pertains to an apparatus including a current share control circuit configured to receive a first sample inductor current sense signal representative of a current in a first power stage, configured to receive from a data bus a second sample inductor current sense signal from a fixed reference phase, and which generates a trim signal. A first control loop having an output configured to be coupled to an input of the first power stage, and configured to receive a signal representative of an output voltage and the trim signal. | 2017-05-18 |
20170141685 | CONVERTER WITH HYSTERETIC CONTROL - A hysteretic power converter constituted of: a switched mode power supply comprising an inductor, an electronically controlled switch and an output capacitor, the switch arranged to alternately open and close a loop with the inductor and a power source; a hysteretic comparator, a first input coupled to a feedback connection and arranged to receive from the feedback connection a feedback signal providing a first representation of the voltage across the output capacitor, the electronically controlled switch opened and closed responsive to an output of the hysteretic comparator; a reference voltage source arranged to generate a reference voltage, the generated reference voltage coupled to a second input of the hysteretic comparator; and a voltage coupler, the voltage coupler arranged to couple a second representation of the voltage across the output capacitor to the second input of the hysteretic comparator, such that the second representation is added to the generated reference voltage. | 2017-05-18 |