| 13th week of 2010 patent applcation highlights part 16 |
| Patent application number | Title | Published |
|---|
| 20100079029 | LAMINATED CORE ARRANGEMENT WITH A CLAW-TYPE END PLATE - A laminated core arrangement includes a laminated core which has a multiplicity of individual laminates along a rotation axis of the electrical machine and has a plurality of cutouts which extend along the rotation axis. A claw-type end plate is arranged on one end face of the laminated core for securing the end individual laminate. The claw-type end plate has an annular inner area from which projections which are in the form of claws project outward in the form of a star, with the inner part of each of the projections pointing radially outward, and with the outer free end of each of the projections pointing into one of the cutouts in the laminated core. The claw-type end plate can be mounted together with the laminated core on a shaft in a single process step. | 2010-04-01 |
| 20100079030 | ROTOR FOR AN ELECTRIC MACHINE - A rotor for an electric machine includes a rotor yoke having a plurality of axial winding slots distributed on an outer periphery of the rotor yoke; a winding bar disposed in one of the plurality of axial winding slots, the winding bar having at least one winding end emerging axially from the rotor yoke so as to form an end winding; and a retaining device including a plurality of radial bolts, each of the plurality of radial bolts having a head fixedly connected to a shank, wherein the retaining device retains the end winding against a centrifugal force acting on the end winding. | 2010-04-01 |
| 20100079031 | ELECTROSTATIC ACTUATOR AND POWER GENERATOR - This electrostatic actuator includes an electret film and a conductor layer formed on the electret film, and the conductor layer is so formed as to have a sectional shape reduced in width upward from the side closer to the electret film. | 2010-04-01 |
| 20100079032 | POLYMERIC ACTUATOR CONTROLLER, POLYMERIC ACTUATOR CONTROL METHOD, AND ELECTRONIC APPARATUS - A polymeric actuator controller includes: a polymeric actuator that has a first electrode and a second electrode for applying electric energy to a polymeric portion and that displaces in accordance with applied electric energy; a potential difference reading unit that reads a potential difference that occurs between terminals of the first electrode and second electrode of the polymeric actuator; and a polymeric actuator driver circuit that applies the electric energy to the first electrode and second electrode of the polymeric actuator to drive the polymeric actuator. The polymeric actuator driver circuit and the potential difference reading unit form a closed loop. The polymeric actuator driver circuit varies the electric energy so that the potential difference read by the potential difference reading unit is maintained at a target potential value. | 2010-04-01 |
| 20100079033 | FLUID AMPLIFIERS AND VIBRATION DAMPING AND ISOLATION SYSTEMS - Fluid amplifiers and vibration damping and isolation systems are provided. A fluid amplifier includes a housing assembly, a piezo-electric element, two amplification stages, and a rod. The piezo-electric element is disposed within the housing assembly and is capable of being energized to lengthen axially to provide an input stroke at an initial magnitude. The first amplification stage is disposed within the housing assembly adjacent to the piezo-electric element and is adapted to amplify the input stroke from the piezo-electric element to a first magnitude. The second amplification stage is disposed in series with the first amplification stage and is adapted to increase the input stroke from the first magnitude to a second magnitude that is greater than the first magnitude to yield an amplified input stroke. The rod extends through the second amplification stage and is coupled thereto to transmit the amplified input stroke having the second magnitude. | 2010-04-01 |
| 20100079034 | CIRCUIT AND METHOD TO IMPROVE ENERGY HARVESTING EFFICIENCY IN PIEZOELECTRIC HARVESTERS - An energy harvester circuit is provided. The energy harvester circuit includes a harvesting module for extracting energy from an ambient source. A bias flip module manages the manner in which voltage across the harvesting module transitions when input current from the harvesting module changes direction so as to allow a majority of the charge available from the harvesting module to be extracted. A voltage transitioning module is shared amongst one or more DC-DC converters for efficient energy management. | 2010-04-01 |
| 20100079035 | ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF - An electronic device includes: a package including a lid and a package base, the package being formed by bonding the lid to a joint surface of the package base using a bonding material; and a resin portion covering the package. The resin portion covers at least the package base and the bonding material, and at least a part of the resin portion has a section outline. The section outline has an outermost portion thereof in a direction parallel with a mount surface of the electronic device. The outermost portion is located below a lower surface of the lid in a direction perpendicular to the mount surface of the electronic device. | 2010-04-01 |
| 20100079036 | PIEZOELECTRIC VIBRATING PIECES AND PIEZOELECTRIC DEVICES COMPRISING SAME - An exemplary tuning-fork type piezoelectric vibrating piece has at least a pair of vibrating arms extending from one end of a base portion in a certain longitudinal direction (e.g., Y-direction). Supporting arms extend from respective side edges of the base, outboard of the vibrating arms in the certain direction. The supporting arms have respective mounting regions near their distal tips. Each supporting arm progressively narrows from its proximal end, coupled to the respective side edge of the base, to its respective mounting region. The progressive narrowing can be via one or more constrictions along the length of the supporting arm. | 2010-04-01 |
| 20100079037 | ELECTROACTIVE POLYMER TRANSDUCER - An electroactive polymer transducer comprising a membrane formed of an approximately rectangular electroactive polymer portion surrounded by two electrodes, at least two points of the membrane being connected to rigid supports, and comprising at least one deformable element for limiting the deformations that the membrane may undergo, the limiting element having a meandering form and being connected to the membrane in several approximately distributed points. | 2010-04-01 |
| 20100079038 | PIEZOELECTRIC VIBRATOR AND ELECTRODE STRUCTURE OF PIEZOELECTRIC VIBRATOR - Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag. | 2010-04-01 |
| 20100079039 | PIEZOELECTRIC ACTUATOR WITH AN IMPROVED STROKE CAPABILITY - A piezoelectric actuator ( | 2010-04-01 |
| 20100079040 | PIEZOELECTRIC DEVICES HAVING IMPROVED IMPACT RESISTANCE - An exemplary piezoelectric vibrating device has a lid plate, a chip plate including a tuning-fork type vibrating piece surrounded by an outer frame, and a package base arranged where the chip plate is sandwiched between the lid plate and package base, and the three layers are bonded together. The tuning-fork type piezoelectric vibrating piece is connected to the outer frame by supporting arms. A base-movement buffer having a predetermined height in the X-direction extends from the inner edge surface of the outer frame toward a side edge of the base. The base-movement buffer has a height in the X-direction that is proportional to the length from the base-movement buffer to a point at which the tuning-fork type piezoelectric vibrating piece is coupled to the outer frame. | 2010-04-01 |
| 20100079041 | Outdoor Telecommunications Equipment Enclosures Having Slide Lock Assemblies - An outdoor telecommunications equipment enclosure includes a dome, a base for receiving the dome, and a slide lock assembly for coupling the dome to the base. The slide lock assembly includes a housing coupled to one of the dome and the base and defining a channel and a slider positioned within the channel. The slider is moveable between a retracted position and an extended position for engaging the other one of the dome and the base. In one example embodiment, one of the slider and the housing includes multiple protrusions in contact with the other one of the slider and the housing. The protrusions inhibit surface contact between the slider and the housing. In another example embodiment, the slide lock assembly includes a gasket, seal and/or plug to inhibit ingress of debris into the slide lock assembly. In yet another example embodiment, the slide lock assembly includes a rotator having an actuator head accessible to a user such that when the rotator is rotated in a first direction via the actuator head, the rotator moves the slider into the extended position. | 2010-04-01 |
| 20100079042 | Modular cabinet - An improved modular cabinet has a metallic frame fabricated to a desired configuration and then various components are assembled to the frame to create the cabinet. The frame is created out of at least one pre-fabricated frame member to which a plurality of other components are detachably assembled. Among the components detachably assembled to the frame are those facilitating releasable attachment of components such as panels, shelves, and counters, and, additionally, various hinges or hinge halves are mounted to the frame to facilitate releasable assembly of components such as doors and access openings. Once the frame has been assembled and the brackets and hinges have been releasably assembled thereto, a variety of panels including end panels, shelving mounted within the frame, counters, doors, drawers, and other panels are assembled to the frame to create the modular cabinet. In any modular cabinet, choices are made as to these components when the frame is being assembled and numerous changes can be made in the locations of brackets, hinges, etc. to facilitate use of the same frame in assembling a variety of configurations of cabinet sub-components to create any one of a number of desired configurations, and changing the initially chosen configuration with ease. | 2010-04-01 |
| 20100079043 | Hide-a-slide hidden drawer - This invention is a hidden drawer to provide a new means of hiding jewelry. Cash and other valuable items. The hide-a-slide hidden drawer is installed under existing lower shelf in a closet normally used for storing shoes. The average shelf is 12 inches wide, our hidden drawer is 9 inches deep, reset 3 inches so a thief would not see it. The hide-a-slide can be locked for added protection. Hide-a-slide has s sliders for drawer to slide on and is installed with 4 screws. | 2010-04-01 |
| 20100079044 | Method for air treatment in a display cabinet and cabinet for implementing the method - In a method for air treatment in a display cabinet for the storage and/or display of objects, whose walls, floor and roof structure more or less enclose the inside space of the display cabinet and in which a forced inflow of air from an air delivery system connected to the inside space ( | 2010-04-01 |
| 20100079045 | Collapsible Cabinet - A collapsible cabinet includes a front frame, two side panels, a rear panel, a bottom panel, at least one inner panel and a top panel. The front frame has multiple mounting blocks and multiple fastening pins. The rear panel has multiple mounting blocks and multiple fastening pins. The side panels are connected to the front frame and the rear panel with multiple connecting buckles. The bottom panel is mounted on the mounting blocks and is positioned with multiple mounting pins. The at least one inner panel is mounted on the bottom panel and has multiple fastening pins. The top panel engages the fastening pins of the front frame, the rear panel and the at least one inner panel. Thus, the collapsible cabinet can be assembled and detached easily without tools and does not be damaged after repeatedly assembling and detaching. Transporting and storing costs are also lowered. | 2010-04-01 |
| 20100079046 | BIOMETRIC POWER ACTUATED SECURITY DRAWER - A security drawer for storing personal property. | 2010-04-01 |
| 20100079047 | NOTEBOOK CABINET - A notebook cabinet includes a main frame having a receiving defined therein. At least one drawer is slidably received in the receiving space and a flexible divider with multiple rooms is disposed in the drawer for holding a notebook in place. The divider has multiple partitions respectively and vertically disposed in the receiving space in the drawer to define the multiple rooms for receiving notebook. A closer is provided to be connected to two lower sides of every two adjacent partitions for holding the notebook in place. | 2010-04-01 |
| 20100079048 | SHORT ARC TYPE DISCHARGE LAMP - A short arc type discharge lamp comprises a pair of electrodes, at least one of which has an electrode main body portion and an axis portion and/or a taper portion formed between the electrode main body portion and the axis portion, wherein in the at least one of the electrodes, the axis portion has an outer diameter smaller than that of the electrode main body portion, and at least one groove extending in an axis line direction of the electrode is formed in the electrode main body portion, the axis portion or the taper portion. | 2010-04-01 |
| 20100079049 | PLASMA DISPLAY DEVICE - A plasma display device refines contrast, suppresses moiré, and maintains mechanical strength against shocks from the outside of the device. A front panel is disposed at a distance D from the front of the plasma display panel. A contrast refine film in which light absorption parts and light transmission parts extending in the same direction as scanning electrodes, discharge sustaining electrodes, and the like, which are formed on the plasma display panel, are formed with a certain pitch is stuck to the front substrate of the plasma display panel. This helps to refine contrast and suppress moiré below a proper level. An antireflection film, a color tone film, an electromagnetic radiation preventing film, a near-infrared absorption film, and the like are all disposed in the front panel. This helps to prevent deterioration of each optical film during operation. | 2010-04-01 |
| 20100079050 | Light emitting device and method of manufacturing the same - A light emitting device includes: a glass package ( | 2010-04-01 |
| 20100079051 | COMPOSITION FOR FORMING ELECTRON EMISSION SOURCE, ELECTRON EMISSION SOURCE INCLUDING THE COMPOSITION, METHOD OF PREPARING THE ELECTRON EMISSION SOURCE, AND FIELD EMISSION DEVICE INCLUDING THE ELECTRON EMISSION SOURCE - An electron emission source includes nano-sized acicular materials and a cracked portion formed in at least one portion of the electron emission source. The acicular materials are exposed between inner walls of the cracked portion. A method for preparing the electron emission source, a field emission device including the electron emission source, and a composition for forming the electron emission source are also provided in the present invention. | 2010-04-01 |
| 20100079052 | FILAMENT LAMP - To provide the structure of a filament lamp having a plurality of independent power supply pathways, the structure being capable of preventing the power supply pathways from electrically shorting to each other, a filament lamp formed of a straight-tube shaped luminous part having multiple filaments (F | 2010-04-01 |
| 20100079053 | Cathode Assembly With Integral Tabs - A cathode shield comprising a shield body and tabs for defining a focal spot length. The tabs can be integral with the shield body and spaced a distance apart from each other. The tabs can at least partially define the focal spot length of an electron source associated with a cathode shield. The cathode shield can further comprise means for positioning the cathode shield relative to a component in a cathode assembly. | 2010-04-01 |
| 20100079054 | PROCESSING APPARATUS AND IMAGE DISPLAY DEVICE - The present invention provides a processing apparatus including a processing unit configured to process a processing object in a processing chamber by bringing a mask into contact with the processing object at a predetermined position, a base configured to hold the processing object on a holding surface, a structure configured to connect the base in a portion opposite to the holding surface of the base, and a driving unit configured to change a processing position of the processing object by pivoting the structure about a rotation shaft parallel to the holding surface of the base, the processing unit including an operation unit configured to perform, at an identical position, a fixing process and a release process, and a deposition processing unit configured to perform a deposition process on the processing object while the mask is in contact with the processing object. | 2010-04-01 |
| 20100079055 | PROVIDING AN IMPROVED THERMAL PATH TO ELECTRONICS BY OVERMOLDING IN A LIGHTING SOURCE - A lamp assembly comprises a light source and an electrical base configured to connect with an associated power source. An electrical assembly is in electrical communication with the light source and the electrical base. The electrical assembly is configured to condition power received from the associated power source to operate the light source. A housing is formed of an overmolding material. The overmolded housing at least partially encapsulates the electrical assembly and is connected with the light source and the electrical base. | 2010-04-01 |
| 20100079056 | PLASMA DISPLAY PANEL - A plasma display panel has a front substrate ( | 2010-04-01 |
| 20100079057 | FLUORESCENT POWDER, PROCESS FOR PRODUCING THE SAME, AND LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND FLUORESCENT LAMP CONTAINING FLUORESCENT POWDER - According to the present invention, a fluorescent powder composed mainly of an acicular or fibrous zinc oxide single crystal with an aspect ratio of 5 or higher is produced by the following steps:
| 2010-04-01 |
| 20100079058 | ILLUMINATION SYSTEM COMPRISING A YELLOW GREEN-EMITTING LUMINESCENT MATERIAL - An illumination system, comprising a radiation source and a luminescent material comprising a phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said phosphor is a europium-activated oxonitridoalumosilicate of general formula AE | 2010-04-01 |
| 20100079059 | Solid State Lighting Devices Including Light Mixtures - A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs) including at least a first LED and a second LED. Chromaticities of the first and second LEDs are selected so that a combined light generated by a mixture of light from the pair of LEDs has about a target chromaticity. The first LED may include a first LED chip that emits light in the blue portion of the visible spectrum and a phosphor that emits red light in response to blue light emitted by the first LED chip. The second LED emits light having a color point that is above the planckian locus of a 1931 CIE Chromaticity diagram, and in particular may have a yellow green, greenish yellow or green hue. | 2010-04-01 |
| 20100079060 | SYSTEM AND METHOD FOR APPLYING A CONFORMAL BARRIR COATING WITH PRETREATING - In a method for depositing a barrier coating, a device is provided comprising a first portion and a second portion where a surface of the second portion is in a shadow zone. The device is pretreated wherein the pretreating alters a deposition rate of the barrier coating on a surface exposed to the pretreating. The shadow zone is substantially unexposed to the pretreating. A barrier coating is deposited wherein the barrier coating substantially conforms to a profile of the device. The coating may be a graded-composition barrier coating wherein a composition of the coating varies substantially continuously across a thickness thereof. The first portion may include a flexible, substantially transparent substrate. The second portion may include an electronic device. The barrier coating and first portion may encapsulate the second portion. The method is a single, commercially advantageous, barrier deposition process, enabling increased product throughput and low process tact time. | 2010-04-01 |
| 20100079061 | LIGHT EMITTING DIODE DEVICE AND MANUFACTURING METHOD THEREOF - A manufacturing method of an LED device includes the following steps. First, a substrate and at least one LED disposed on the substrate are provided. Next, a porous material layer having a plurality of pores is formed on a surface of the LED. Finally, a plurality of nanocrystals are formed in the pores to construct a phosphor layer on the surface of the LED. | 2010-04-01 |
| 20100079062 | OPTOELECTRIC DEVICES - The invention provides an optoelectric device, in particular an organic light emitting diode device comprising a substrate, a first electrode applied on the substrate, a second electrode, a layer of an organic light emitting material which is arranged in between the first electrode and the second electrode, and a multilayer seal applied onto the second electrode which multilayer seal comprises at least one layer of a high density material and at least one layer of an organic material in which organic material a moisture scavenging agent has been incorporated, which moisture scavenging agent comprises an organic composition that does not generate an acidic proton when subjected to hydrolysis. The invention also relates to an article comprising said organic light emitting device, and a method for preparing said device. | 2010-04-01 |
| 20100079063 | Organic EL Display Panel and Method of Manufacturing the Same - One embodiment of the present invention is a method for manufacturing an organic EL display panel in which a substrate which has a pixel electrode, a partition wall, a sub pixel which has a short side and a long side sectioned by the partition wall and a pixel including a plurality of the sub pixels are prepared and a first organic layer is formed and printed so as to form a stripe shape in the short side direction of the sub pixel and a second organic layer as a luminescent layer is formed on the sub pixel. | 2010-04-01 |
| 20100079064 | Organic EL Element and Method for Manufacturing Thereof - One embodiment of the present invention is a method for manufacturing an organic electroluminescence element wherein the organic electroluminescence has a substrate, a partition wall on the substrate, a pixel on the substrate sectioned by the partition wall, an organic luminescent layer on the pixel, forming an under-layer on the entire surface of a luminescent area including the inside surface of the pixel and the upper surface of the partition wall and forming the organic luminescent layer by coating an ink which includes an organic luminous material by a printing method on the surface of the under-layer. | 2010-04-01 |
| 20100079065 | DISPLAY DEVICE - A display device including an active area having a plurality of pixels and a peripheral area outside the active area comprises an array substrate including a plurality of transistors corresponding to said pixels each other, an organic insulation film covering said transistors in said active area and a plurality of display elements each of which includes a first electrode, a second electrode and an organic active layer therebetween over said organic insulation film; a sealing substrate disposed to be opposed to said array substrate; a seal member made of frit glass and disposed between said array substrate and said sealing substrate at a seal area in said peripheral area; wherein said organic insulation film is removed at said seal area, said array substrate includes a laminate structure of metal layer and an inorganic non-metal layer on said metal layer at said seal area and said seal member directly contacts to said inorganic non-metal layer. | 2010-04-01 |
| 20100079066 | Triazole Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Triazole Derivative - A novel triazole derivative which has a large energy gap and can be used for electron-transporting layer of a light-emitting element or as a host material. In addition, a light-emitting element which has higher emission efficiency by using the novel triazole derivative. Furthermore, a low power consumption light-emitting device and electronic device. | 2010-04-01 |
| 20100079067 | Organic EL Display Panel and Method for Manufacturing Thereof - An embodiment of the present invention is an organic EL display panel including a plurality of first electrodes, a confining wall which covers an edge part of the first electrode and sections the plurality of first electrodes into different pixels, a luminescent medium layer which has a plurality of layers including a luminescent layer and a second electrode formed on the luminescent medium layer, and an organic EL display panel also includes at least two layers which are included in the luminescent medium layer and which are formed into a stripe shape and are perpendicular to each other. | 2010-04-01 |
| 20100079068 | HIGH-PRESSURE DISCHARGE LAMP - In various embodiments, a high-pressure discharge lamp has a metal halide fill, iodine and bromine being used as the halogen. In addition, noble gas and Hg are used. Thallium is used as the metal, with the proportion of TlI being in the range from 25 to 75 wt. % of the mixture of TlI and TlBr. | 2010-04-01 |
| 20100079069 | DIELECTRIC COMPOSITION AND PLASMA DISPLAY PANEL INCLUDING THE SAME - A dielectric composition for plasma display panel and a plasma display panel including the same are disclosed. The dielectric composition includes about 38 to 68 parts by weight of Bi2O3, about 10 to 35 parts by weight of B2O3, about 1 to 17 parts by weight of SiO2, and about 1 to 15 parts by weight of Al2O3. | 2010-04-01 |
| 20100079070 | MERCURY-FREE DISCHARGE LAMP - A mercury-free discharge lamp includes a hollow cylindrical body, two capillaries entirely inside the body and hermetically sealed to the body, each with a respective electrode therein, where the capillaries are separated from each other inside the body by a gap that is a discharge chamber of the discharge lamp, and where each of the electrodes has an interior end exposed inside the discharge chamber and an exterior end extending beyond a respective end of the body. A pair of frit seals seal respective electrode exterior ends to respective ones of the capillaries. The discharge chamber preferably includes a mercury-free metal halide salt fill that is 10 to 54.5 wt % NaI, 6.6 to 15 wt % DyI | 2010-04-01 |
| 20100079071 | VEHICULAR LAMP - The disclosure facilitates determining the presence of an abnormality of a light source in a vehicular lamp using, as a determination condition, a number of disconnected semiconductor light-emitting elements among multiple semiconductor light-emitting elements. The vehicular lamp includes a first light source block that has light-emitting diodes LED | 2010-04-01 |
| 20100079072 | LIGHT APPARATUS CONTROL SYSTEM FOR VEHICLE - A control unit determines whether a vehicle has entered an area under a covering object that covers the upper side of the vehicle. In the case where the control unit determines that the vehicle has entered the area under the covering object, the control unit turns on light apparatus when both of a measurement of an upper light intensity, which is measured with an upper light intensity sensor, and a measurement of a front light intensity, which is measured with a front light intensity sensor, require turning on of the light apparatus. | 2010-04-01 |
| 20100079073 | Pulsed dielectric barrier discharge - A method of generating a glow discharge plasma involves providing a pair of electrodes spaced apart by an electrode gap, and having a dielectric disposed in the electrode gap between the electrodes; placing the electrodes within an environment, wherein the electrode gap can be provided with a gas or gas mixture containing carbon at a specified pressure; and applying a rapid rise time voltage pulse across the electrodes to cause an extreme overvoltage condition, wherein the rapid rise time is less than a plasma generation time so that the extreme overvoltage condition occurs prior to current flow across the electrode gap. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 2010-04-01 |
| 20100079074 | Light Emitting Driver Circuit with Bypass and Method - A light emitting driver circuit, system, and method are provided. The driver circuit system and method can be implemented in various ways. An embodiment includes a bypass circuit which diverts current from the LEDs whenever a switch coupled to the LEDs incurs residual current when turned off. In an additional or alternative embodiment, the residual current can be sensed and the amount of residual current used to trigger fetching of a compensation value. That compensation value can change a dimming function forwarded to the switch in order to compensate for, offset, or substantially eliminate the residual current through that switch. | 2010-04-01 |
| 20100079075 | Light Emitting Apparatus - A fluorescent lamp type light emitting apparatus is provided. The light emitting apparatus comprises a cover, a light emitting module, radiation pads, and cap parts. The cover comprises a first cover and a transmissive second cover coupled to the first cover. The light emitting module comprises a plurality of light emitting diodes in the cover. The radiation pads are disposed on the light emitting module. The cap parts comprise electrode terminals at both ends of the cover. | 2010-04-01 |
| 20100079076 | LED LIGHT STRING WITHOUT ADDITIONAL RESISTORS - An electrical circuit for use as a string of lights in one embodiment includes a rectifier for converting AC into DC; and a plurality of lamps connected in series, each lamp having an LED, and wherein at least one of the lamps each has a Zener diode connected in series with the LED, a positive terminal of the lamp proximate the rectifier is connected to a positive terminal of an output of the rectifier, and a negative terminal of the lamp distal the rectifier is connected to a negative terminal of the output of the rectifier. In another embodiment, the Zener diode is replaced with a resistor. Hence, no resistors are provided externally of the lamp. | 2010-04-01 |
| 20100079077 | AC Delay Angle Control for Energizing a Lamp - A control circuit for a lamp. The control circuit is used in conjunction with an alternating current (AC) variable voltage power source to energize the lamp. The control circuit includes a voltage sensing component for sensing the voltage of an voltage input signal from the power source for energizing the lamp. The control circuit includes a controller configured to estimate a delay angle as a linear function of the sensed voltage. The control circuit includes an AC converter for modifying the voltage input signal according to the estimated delay angle to generate an AC voltage output signal having a constant root mean square voltage for energizing the lamp. | 2010-04-01 |
| 20100079078 | Using Pulse Density Modulation for Controlling Dimmable Electronic Lighting Ballasts - Pulse Density Modulation (PDM) controls light brightness from a fluorescent lamp by applying voltages to the lamp filaments at two or more sequential signal frequencies. A low frequency, an intermediate frequency and a high frequency may be used to control the brightness of the lamp. The lamp gas ionizes to produce light only when the low or intermediate frequency voltage is applied thereto. The lamp gas is not ionized at the high frequency voltage, but the high frequency voltage keeps the lamp filaments warm during low brightness conditions. The low frequency, intermediate frequency, no and/or high frequency voltages have time periods that occur within a modulation frame time period that repeats continuously. The ratio of the low frequency and intermediate frequency time periods, and the no and/or high frequency voltage time periods determine the light output of the fluorescent lamp, and also maintain a proper temperature of the filaments. | 2010-04-01 |
| 20100079079 | Induction lamp and fixture - An induction lamp includes a bulb enclosing an induction coil and having a threaded base. The threaded base is electrically connected to the induction coil without an electrically intermediate frequency generator disposed between the threaded base and the induction coil. An induction lamp fixture includes a female threaded electrical bulb socket and a frequency generator convertor unit 50-60 Hz A/C electricity to a sufficient frequency to illuminate an induction bulb. A method for retrofitting a light fixture includes connecting an output of a frequency generator having an input receiving 50-60 Hz A/C electricity, to a female threaded electrical bulb socket. | 2010-04-01 |
| 20100079080 | Gamma Generator System and Method Adaptable for Backlight Control - A gamma reference voltage generating system and method adaptable for backlight control is disclosed. A gamma reference voltage generator adaptively generates an analog gamma reference voltage under the control of a digital control signal. The digital control signal is specifically arranged to accordingly level-up an upper limit of a gamma curve, thereby improving brightness loss. | 2010-04-01 |
| 20100079081 | Light-Emitting Diode (LED) Driver and Controller - Apparatuses, methods, systems, and circuits for light-emitting diode (LED) control are disclosed. In one embodiment, an LED control circuit can include a first pin receiving an input voltage supply; a second pin receiving a primary signal from a primary winding of a transformer coupled to the LED; a third pin coupled to a ground supply; and logic configured to estimate an output current and/or output voltage at the LED coupled to a secondary winding of the transformer from the input voltage supply and the primary signal. | 2010-04-01 |
| 20100079082 | Light-Emitting Element Driving Control Circuit - A light-emitting-element-driving-control circuit comprising: a control circuit to turn on or off a transistor based on an input-control signal, the transistor being connected in series with a light-emitting element and an inductor connected in series and controlling increase and decrease of a driving current of the light-emitting element; a maximum-value-detection circuit to detect a maximum value of the driving current; and a control-signal-generation circuit to generate the control signal for turning on the transistor to increase the driving current at a speed corresponding to a level of a power-supply voltage when the driving current is smaller than the maximum value and turning off the transistor to be kept for a predetermined period to decrease the driving current at a speed corresponding to a level of a forward voltage of the light-emitting element when the driving current reaches the maximum value, based on a detection result of the maximum-value-detection circuit. | 2010-04-01 |
| 20100079083 | SYSTEM AND METHOD FOR REMOTE CONTROL LIGHTING - Remote lighting control methods, devices and systems are disclosed. One embodiment of the present invention pertains to a light device. The light device includes a light source for emitting light and a control circuit for setting an intensity level of the light source based on receipt of control data via a power line when the light device is electrically coupled to the power line. The control data is generated in response to user input to an input panel of a remote lighting control module for the light device. In addition, the light device comprises a unique address associated with a region on the input panel. | 2010-04-01 |
| 20100079084 | DEVICE FOR SETTING LUMINOSITY OF LIGHT-EMITTING DIODES - The invention concerns a circuit for setting all types of LED'S ( | 2010-04-01 |
| 20100079085 | SUPPLY CIRCUIT - In supply circuits ( | 2010-04-01 |
| 20100079086 | HIGH-POWER LED DRIVING CIRCUIT - A high-power light-emitting diode (LED) driving circuit relates to a photoelectric technology field. An anode of D | 2010-04-01 |
| 20100079087 | LIGHTING APPARATUS - The present invention comprises a lighting apparatus main body having a reflecting surface, a main light source arranged in the reflecting surface of the lighting apparatus main body, a sub-light source which is arranged at the lighting apparatus main body and illuminates the neighborhood of the main light source directly, and a control circuit which controls the main light source and the sub-light source. | 2010-04-01 |
| 20100079088 | Power systems with current regulation - A power system includes a current regulator coupled to a load and for generating an output current having a substantially constant ripple magnitude, and for adjusting the output current according to a sense signal indicative of the output current. In addition, the power system includes a filter element coupled in parallel with the load and for passing an AC (alternating-current) portion of the output current. Furthermore, the power system includes a current sensor coupled between ground and the parallel-coupled filtering element and load, and for providing the sense signal indicative of the output current. | 2010-04-01 |
| 20100079089 | LAMP SET - A lamp set includes a control device and a first lighting device. The control device includes an energy-generating unit for providing an energy distribution. The first lighting device includes a pre-processing unit, a first lighting element, and a controller. The controller is coupled to the pre-processing unit and the first lighting element. The pre-processing unit is used to sense the energy distribution or to receive information included in the energy distribution thus to allow the controller to control luminance of the first lighting element according to the energy distribution. | 2010-04-01 |
| 20100079090 | Light Emitting Driver Circuit with Compensation and Method - A light emitting driver circuit, system, and method are provided. The driver circuit system and method can be implemented in various ways. An embodiment includes a bypass circuit which diverts current from the LEDs whenever a switch coupled to the LEDs incurs residual current when turned off. In an additional or alternative embodiment, the residual current can be sensed and the amount of residual current used to trigger fetching of a compensation value. That compensation value can change a dimming function forwarded to the switch in order to compensate for, offset, or substantially eliminate the residual current through that switch. | 2010-04-01 |
| 20100079091 | LIGHT SOURCE - This invention relates to a light source ( | 2010-04-01 |
| 20100079092 | REAL TIME LOAD ADAPTATION OF A MOTOR - A method of varying speed and direction of motor operating intervals in a food processing device to achieve real time load adaptation comprising a motor ( | 2010-04-01 |
| 20100079093 | ELECTRIC POWER CONVERTER - Specific anomalies and details of failures as well as measures thereagainst are described that might possibly occur in electric power converters that drive and control permanent-magnet synchronous motors. An electric power converter capable of stable operation has a protective function of taking proper measures against such failures that might possibly occur. | 2010-04-01 |
| 20100079094 | Enclosure acoustic compensation - In some embodiments, an amplification spectrum for an electronic device enclosure is identified and/or determined to improve a user's audio environment, e.g., by reducing unwanted noise such as fan noise and/or by processing audio signals that have been or will be distorted by the enclosure acoustics. | 2010-04-01 |
| 20100079095 | Motor circuit and electric power steering apparatus - In a steering control unit, a U-phase feed line branches into paired branch feed lines, phase-open MOSFETs are provided in middle portions of the branch feed lines, phase-open MOSFETs are provided in middle portions of a V-phase feed line and a W-phase feed line, and the phase-open MOSFETs are arranged in such a manner that parasitic diodes are in the same orientation with respect to a motor. When an abnormality occurs, all the phase-open MOSFETs are turned off. Then, a closed circuit, which includes phase coils and through which electric currents flow, is no longer present. | 2010-04-01 |
| 20100079096 | HUMAN INTERFACE MODULE FOR MOTOR DRIVE - A power electronics device with an improved human interface module (HIM) is provided. More specifically, a motor drive is provided that includes a HIM with a portable memory device that stores the programming configuration of the motor drive. The improved HIM with portable memory enables improved techniques for quickly and efficiently updating the programming configuration of one or several motor drives. | 2010-04-01 |
| 20100079097 | GENERIC MOTOR CONTROL SYSTEM - A method for controlling the operation of a motor utilizing a generic motor control module. The method includes sampling at least one motor operating criterion during operation of the motor and executing a generic control algorithm at a predetermined periodic interval. Execution of the algorithm provides a firing angle, duty cycle, or other suitable control function solution for an electronic valve for each periodic interval, thereby controlling the behavior of the motor. Additionally, the method includes firing the electronic valve at the calculated timing during each periodic interval such that the motor functions in accordance with desired motor operational parameters. | 2010-04-01 |
| 20100079098 | GENERIC MOTOR CONTROL SYSTEM - A method and apparatus for controlling a plurality of different motors used in a corresponding plurality of power tool applications requiring different operational characteristics. In one implementation a method involves the use of a single universal control module to store a generic, non-application-specific control algorithm. The generic, non-application-specific control algorithm has at least one programmable constant. The programmable constant is selected to transform the generic, non-application-specific control algorithm into an application-specific control algorithm. The programmable constant represents a function parameter relating to a specific functionality of a specific, selected motor used in a specific, selected motor application to implement a phase control over the specific, selected motor. | 2010-04-01 |
| 20100079099 | MEDICAL MANIPULATOR - A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end working unit mounted on a distal end of a joint shaft, which extends from the coupler and is operatively connected to the rotor by a wire, an encoder for detecting an angular displacement of the motor, and a controller for reading a signal from the encoder and comparing the read signal with an operation command value for energizing the motor through a feedback loop. The controller outputs a signal having a level greater than the resolution of the encoder and a lower operation limit of the motor within a range in which the distal-end working unit remains still, and monitors the angular displacement of the motor for thereby determining whether the feedback loop is malfunctioning or not. | 2010-04-01 |
| 20100079100 | METHOD AND APPARATUS FOR CONTROLLING INERTIAL SYSTEM - Suppression of vibration of a load machine without reducing the responsiveness of the load machine to an operation command is achieved by a method and an apparatus for controlling an inertial system intended to control an inertial system that has a motive power generator and a load machine that are coupled to each other via a torque transmission element. Acceleration command information that designates the acceleration of the load machine is multiplied by a predetermined gain to produce a vibration suppression control variable. The vibration suppression control variable is added to the position command to form a vibration suppression control command, and the inertial system is controlled according to the vibration suppression control command. | 2010-04-01 |
| 20100079101 | HANDHELD OR VEHICLE-MOUNTED PLATFORM STABILIZATION SYSTEM - A hand-held or vehicle-mounted stabilization system including a platform supported by two or more rotatably-coupled gimbal frames each having a pivot assembly disposed at its rotation axis to couple an actuator to a rotation sensor having a rotation-sensitive sensor axis that is preferably fixedly disposed with respect to the rotation axis, and a controller for accepting the sensor signals and for producing each motor signal needed to dispose the platform in a predetermined angular position with respect to each rotation axis independent of changes in mount orientation. An alternative embodiment includes a controller for accepting an external slew signal sequence and for producing the motor signals needed to move the platform along a predetermined sequence of positions represented by the slew signal sequence. | 2010-04-01 |
| 20100079102 | Apparatus and Method for Minimizing Undesirable Stepper Motor Rotor Motions - An apparatus for reducing undesired motions during initialization of a stepper motor having a rotor and windings, the apparatus comprising a rotary encoder for sensing direction of rotor rotation; a microcontroller responsive to signals from the rotary encoder for generating bidirectional motor control waveforms having variable digital amplitude values; at least one motor driver for receiving the motor control waveforms and translating the waveforms to drive the motor windings; and wherein the translated waveforms urge the rotor in a first direction and then a second direction to locate a desired rotor position. A method of reducing undesired motions during initialization of a stepper motor having a rotary encoder coupled thereto comprises applying currents to the phase windings to form a magnetic field vector in a direction; sensing a direction of rotor rotation; changing at least one motor phase current to rotate the magnetic field vector in a direction opposite to the direction of first sensed rotor rotation by a first electrical angle; sensing a direction of rotor rotation; changing at least one motor phase current to rotate the magnetic field vector to a next position in a direction opposite to the second sensed rotor rotation by a second electrical angle; and ending initialization, whereby the rotor is aligned with the magnetic field vector in its next position. | 2010-04-01 |
| 20100079103 | ALTERNATING-CURRENT MOTOR CONTROL APPARATUS - An alternating-current motor control apparatus includes a stator frequency computing unit configured to compute a stator frequency of a motor magnetic flux; a torque error computing unit configured to compute a torque error by using the motor magnetic flux, an estimated current, and a motor current; and a speed estimator configured to estimate a speed of the alternating-current motor by using the stator frequency and the torque error. The speed estimator includes a proportional controller configured to reduce the torque error to zero, and an adaptive filter configured to eliminate a high-frequency component of the torque error. | 2010-04-01 |
| 20100079104 | OPEN-LOOP AND/OR CLOSED-LOOP CONTROL SYSTEM OF A 3-PHASE POWER CONVERTER FOR THE OPERATION OF AN ASYNCHRONOUS MACHINE - An open-loop and/or closed-loop control device for operating an asynchronous machine which is fed by a 3-phase power converter. The open-loop and/or closed-loop control structure has a stator flux controller and a pulse pattern generator for generating pulse signals based on mean values. An output of the stator flux controller is connected to an input of the pulse pattern generator, with the result that the pulse pattern generator can generate the pulse signals as a function of a manipulated variable which is generated by the stator flux controller. The stator flux controller is configured so as to generate the manipulated variable as a function of a desired value of the stator flux of the asynchronous machine and as a function of a desired value of the torque of the asynchronous machine. The stator flux controller has a dead-beat control response. | 2010-04-01 |
| 20100079105 | CONTROL SYSTEM, CONTROL DEVICE AND CABLE CONNECTION STATE DETERMINING METHOD - A vehicle-side connector included at one end of a cable through which a power source outside a vehicle feeds a power storage device, includes a signal pin, a resistive element R | 2010-04-01 |
| 20100079106 | DOCKING STATIONS FOR REMOTE CONTROL AND MULTIMEDIA DEVICES - A representative base unit for charging a remote controller and a multimedia device includes at least two docking stations for a remote controller and a multimedia device, wherein the at least two docking stations having charging slots that transfer power to the remote controller and the multimedia device for recharging; and a processing device that is electrically coupled to the docking stations for communicating with the remote controller and the multimedia device, wherein the processing device facilitates communication between the remote controller and the multimedia device. | 2010-04-01 |
| 20100079107 | Mobile Phone Charging Stand Incorporating Ink Refill Unit - A charging stand for charging a mobile phone, includes a base defining a receptacle for receiving the mobile phone; a battery charging circuit for supplying a charging voltage to the mobile phone; a removable ink cartridge received in the receptacle, the removable ink cartridge for supplying ink to a printer of the mobile phone; a hollow cartridge connection pin protruding from the base for effecting fluid communication with the removable ink cartridge; a hollow device connection pin protruding from the base for effecting fluid communication with the mobile phone; an ink connection provided in the base molding, the ink connection connecting the cartridge connection pin and the device connection pin; and an elastomeric molding formed around the cartridge connection pin and device connection pin, the elastomeric molding covering respective outlets of the cartridge connection pin and device connection pin. The elastomeric molding is adapted to compress upon receipt of the mobile phone in the receptacle to expose the respective outlets. | 2010-04-01 |
| 20100079108 | BATTERY UNIT AND BATTERY SYSTEM USING THE BATTERY UNIT - A battery system includes a battery unit in which battery arms are connected in parallel, and a charge/discharge control device that controls charge/discharge of the battery unit. Each of the battery arms includes: a battery composed of one or more battery cells connected in series; a switch connected in series to the battery; and a battery monitoring device that, in a case of having detected abnormality of the battery, opens the switch to thereby isolate the battery arm including the abnormal battery, and sends a switch opening signal indicating that the switch has been opened to the charge/discharge control device. The charge/discharge control device performs a control to reduce a charge/discharge current or charge/discharge power of the battery unit when the switch opening signal is sent from the battery monitoring device of the battery unit to the charge/discharge control device. | 2010-04-01 |
| 20100079109 | METHODS AND APPARATUS FOR STORING ELECTRICITY - In some embodiments, a system includes a battery and a capacitor bank. The battery is electrically coupled to a load device and is configured to supply power to the load device when the system is in a first configuration. The system is in the first configuration when a current requirement of the load device is less than a current threshold. The capacitor bank includes a plurality of capacitors and is electrically coupled to the battery when the system is in a second configuration. The battery and the capacitor bank are configured to collectively provide power to the load device when the system is in the second configuration. The system is in the second configuration when the current requirement of the load device is greater than the current threshold. | 2010-04-01 |
| 20100079110 | NON-AQUEOUS ELECTROLYTIC SOLUTION AND LITHIUM SECONDARY BATTERY - A non-aqueous electrolytic solution favorably employable for a lithium secondary battery employs a non-aqueous electrolytic solution which comprises a non-aqueous solvent and an electrolyte which further contains 0.001 to 0.8 weight % of a biphenyl derivative having the formula: | 2010-04-01 |
| 20100079111 | METHOD AND APPARATUS FOR CHARGE DISCHARGE POWER CONTROL - Limit values of battery charging and discharging power are set by a battery charge discharge control apparatus, based on the estimation of the internal resistance of a battery according to a detected battery temperature and the sampling of a battery current and a battery voltage respectively detected by a current sensor and a voltage sensor. The limit values are used to control the battery current and the battery voltage to be within a current use range and a voltage use range of the battery, according to conditions of the battery in a vehicle. | 2010-04-01 |
| 20100079112 | Battery controller, battery control method, and battery - A battery controller includes: a temperature detecting section including at least one temperature detecting element whose resistance changes with changes in the temperature of a battery cell and/or a charge/discharge control switch connecting the cell with an external apparatus; first and second voltage divider circuits respectively including first and second resistive elements connected with the temperature detecting element; and a control section applying a reference voltage to the first or second voltage divider circuit while switching it such that the value of a voltage applied to the temperature detecting element according to a voltage dividing ratio between the resistive element and the voltage divider circuit changes proportionally to the temperature of the cell and/or the switch, and controlling the switch such that the external apparatus is connected to the cell when the temperature of the cell and/or the switch detected based on a voltage division output of the voltage divider circuit is between first and second temperatures. | 2010-04-01 |
| 20100079113 | BATTERY MANAGEMENT FOR OPTIMIZING BATTERY AND SERVICE LIFE - The provision of a mode in silver zinc batteries where a user can access extra capacity as an emergency reserve for times when extra capacity is needed. While this temporarily increases capacity, it does not detrimentally affect cycle life over the longer term, and it permits a silver zinc battery to essentially mimic the long term capacity and cycle life characteristics of a lithium ion battery while still affording inherent advantages associated with silver zinc batteries. In a variant embodiment, this ability to temporarily increase capacity is optimally employed at the end of a battery life cycle in a controlled “roll-off” that accords additional cycles of battery service life. In another variant embodiment, the general capability to control capacity is employed to gradually decrease the available capacity of a battery over the life of the battery, to thereby extend the battery service life. | 2010-04-01 |
| 20100079114 | SYSTEMS AND METHODS FOR CHARGING A BATTERY WITH A DIGITAL CHARGE REDUCTION LOOP - Exemplary systems and methods for charging a battery with a digital charge reduction loop are described herein. In some embodiments, a system comprises an exemplary digital charge reduction loop which comprises a circuit for determining a charge-current adjustment signal, a counter for generating a digital count value, and a digital-to-analog converter. The circuit for determining a charge-current adjustment signal may base the determination on a source voltage of an input source. The counter may generate a digital count value based on the charge-current adjustment signal. The digital-to-analog converter (DAC) may generate a DAC control signal based on the digital count value of the counter, the DAC control signal being representative of an amount of charge current to be used to charge a battery. | 2010-04-01 |
| 20100079115 | SYSTEMS AND METHODS FOR ABSORBING WASTE ELECTRICITY FROM REGENERATIVE BRAKING IN HYBRIDIZED VEHICLES - The invention relates to a system for absorbing electric energy from regenerative braking. The system comprises a battery, a thermoelectric module in thermally-conductive contact with the battery, a generator for generating an electric current from regenerative braking, the generator connected to the battery via a first switch and connected to the thermoelectric module via a second switch, and a sensor for measuring a temperature and a charge state of the battery. The system also comprises a controller for activating and deactivating the first switch and the second switch when certain conditions have been met. | 2010-04-01 |
| 20100079116 | Battery charging method - A charging and equalizing method for a battery having a control computer in a charging system in communication with a plurality of module processors. Charging and equalization pauses periodically for voltage measurement by the module processors. The control computer determines when to equalize battery cells in the modules based on their open circuit voltages transmitted by the module processors. A selected group of cells in each module can be equalized. Equalization is carried out in the modules until all of the module processors indicate that equalization has been completed. Charging can then resume until charging is complete or cells reach a maximum voltage given by the control computer. In an alternative embodiment, a selected group of cells may be partially bypassed while charging to reduce the charge rate of the cell. | 2010-04-01 |
| 20100079117 | Field transient suppression system and method - A vehicle electrical system comprises a generator, voltage regulator, electrical energy source, and control device. The generator provides electrical current to one or more electrical loads. Voltage transients from electrical load variations are suppressed by storing electrical energy of the field coil of the generator in the electrical energy source, and by proving electrical energy from the electrical energy source to the field coil. The control device comprises a controller and a charging module operative to maintain the voltage of the electrical energy source at a predetermined voltage that is above the regulation voltage so as to reduce the generator output voltage transients due to sudden variations in the one or more electrical loads. | 2010-04-01 |
| 20100079118 | VEHICLE POWER GENERATING DEVICE AND AN ALTERNATOR CONTROL METHOD - A vehicle power generating device includes an alternator which has a voltage regulator that keeps the voltage of generated power constant, and an electronic control unit that controls the voltage regulator. In this vehicle power generating device, the alternator has an abnormally high temperature determining portion that determines whether the temperature of the alternator is abnormally high, and an abnormal signal outputting portion which, when it has been determined by the abnormally high temperature determining portion that the temperature of the alternator is abnormally high, outputs a signal indicative of the determination that the temperature is abnormally high to the electronic control unit. Also, when the electronic control unit receives the signal indicative of the determination that the temperature is abnormally high, the electronic control unit controls the voltage regulator such that the voltage generated by the alternator is suppressed. | 2010-04-01 |
| 20100079119 | SYSTEM AND METHOD FOR LIMITING CURRENT OSCILLATION - A system and method for limiting current oscillation in power supplies. A method for operating a power supply comprises entering a current limitation mode, setting a current limit for a current flowing through a power switch of the power supply, and in response to determining a current limit has changed from a high value to a low value or detecting an occurrence of a fault condition, setting the current limit to the low value, and locking the current limit so that the current limit does not change. The method further comprises providing a current to a load coupled to the power supply. | 2010-04-01 |
| 20100079120 | Measuring the current through a load transistor - The measurement of a current through a load transistor is described. | 2010-04-01 |
| 20100079121 | CONSTANT-VOLTAGE POWER SUPPLY CIRCUIT - A constant-voltage power supply circuit which limits the consumption current inside at startup or when overloaded and suppresses the occurrence of an overshoot at startup, comprises an error amplifying part; an output part having an outputting PMOS; a load current monitoring part that monitors a load current flowing through the PMOS and increases the bias current of the error amplifying part according to the load current; and a gain adjusting part having a current limiting resistor and that monitors the load current and decreases a gain of the error amplifying part according to this load current. Hence, at startup or when overloaded, the gain adjusting part operates as a limiter circuit. Hence, at startup or when overloaded, the consumption current inside can be limited. Further, at startup, the response is made slower by this limiter operation, thus suppressing the occurrence of an overshoot. | 2010-04-01 |
| 20100079122 | System and Method for Adapting Clocking Pulse Widths for DC-to-DC Converters - A system and method for adapting a width of a clocking pulse for clocking a DC-DC converter, wherein the width of the clocking pulse is selected based upon the duty cycle of the DC-DC converter. When the DC-DC converter operates below a predefined threshold duty cycle, a clocking pulse of a first width is selected to allow operation of the converter at a minimum predefined duty cycle with a clocking frequency that minimizes output voltage ripple. The first width corresponds to an on-time of a switching transistor of the DC-DC converter when the converter is operated at the minimum duty cycle. When the DC-DC converter operates above the predefined threshold duty cycle, a clocking pulse of a second width is selected to allow operation of the converter at high duty cycles while simultaneously avoiding missed inductor current pulses and generation of sub-harmonic voltage oscillations. | 2010-04-01 |
| 20100079123 | OUTPUT-VOLTAGE CONTROL DEVICE, OUTPUT-VOLTAGE CONTROL METHOD, AND ELECTRONIC APPARATUS - An output-voltage control device includes a comparator which generates a comparison result after a given time passes from first timing of a first periodic signal, the comparison result being obtained by comparing a difference between an output voltage and a reference voltage with the first periodic signal, a first signal generator which generates a timing control signal which is at a first level before the given time passes from the first timing and which changes from the first level to a second level in a period in which the comparator outputs the comparison result after the given time passes, and a second signal generator which generates a control signal for controlling the output voltage in accordance with the comparison result and the timing control signal. | 2010-04-01 |
| 20100079124 | Adjustable Constant Current Source with Continuous Conduction Mode ("CCM") and Discontinuous Conduction Mode ("DCM") Operation - A converter system and method of operating a converter system are disclosed. The converter system comprises a converter power stage that can operate in a Discontinuous Conduction Mode (DCM) in a range of output currents and a Continuous Conduction Mode (CCM) in another range of output currents. The converter power stage includes at least an inductor with an inductor value and a control switch. The converter power stage provides an average current. A current controller is coupled to the converter power stage. When the converter power stage operates in DCM, the converter power stage provides the average current and the current controller is configured to measure the inductor value of the inductor. Furthermore, the current controller can also be configured to measure an input-to-output conversion ratio from the converter power stage. | 2010-04-01 |
| 20100079125 | Current sensing in a switching power converter - A power control system includes a current sense resistor located on an output side of a switching power converter. By locating the current sense resistor on the output side of the switching power converter, the current sense resistor conducts a sense current when a control switch of the switching power converter is nonconductive. Since a duty cycle of the control switch is larger for a low input voltage than for a higher input voltage, the current sense resistor conducts current for a shorter time duration for low input voltages than for higher input voltages. Thus, the root mean square (RMS) of a sense current in the current sense resistor and, thus, power dissipation by the current sense resistor, is lower during low input voltages than power dissipation in conventionally located current sense resistors. The RMS of the sense current is approximately constant across a full range of input voltages. | 2010-04-01 |
| 20100079126 | DUAL-LOOP DC-TO-DC CONVERTER APPARATUS - A dual loop DC-to-DC converter is provided that includes a first control loop that maintains a DC output voltage (V | 2010-04-01 |
| 20100079127 | Regulating current output from a buck converter without external current sensing - A step-down (buck) switching regulator regulates output current without sensing a current external to a converter integrated circuit. The regulator generates a set current that is indicative of a predetermined current level to which the output current is regulated. The regulator generates a sense current whose magnitude is proportional to an inductor current flowing through a power switch during an on time. During a first time period, the sense current is less than the set current. During a second time period, the sense current is greater than the set current. The output current of the regulator is maintained at the predetermined current level such that the first time period is equal to the second time period when the output current equals the predetermined current level. The set current is compared to the sense current in circuitry inside a bootstrap power generator whose voltage fluctuates with the voltage across the inductor. | 2010-04-01 |
| 20100079128 | LOW NOISE EXTERNAL ENABLE SWITCHER CONTROL SIGNAL USING ON-CHIP SWITCHER - A method and system is disclosed for powering device sub-circuitry of an electronic device. The sub-circuitry may be used to provide control signals to a direct current switcher on a main system board, thus eliminating passive circuitry typically associated with the sub-circuitry. Furthermore, by actively generating the control signals for the direct current switcher, explicit timing control circuitry is not required to synchronize the transmitted power to the sub-circuitry. | 2010-04-01 |
