| Patents for G05F 1 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems (37,749) |
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| 02/21/2012 | US8120344 Power supply unit and portable device |
| 02/21/2012 | US8120342 Current report in current mode switching regulation |
| 02/21/2012 | US8120341 Switching power converter with switch control pulse width variability at low power demand levels |
| 02/21/2012 | US8120340 Control device for an interleaving power factor corrector |
| 02/21/2012 | US8120339 Switching power supply with switching circuits |
| 02/21/2012 | US8120338 Dropper-type regulator |
| 02/21/2012 | US8120337 Inverter driver and load driver including the same, and driving method thereof |
| 02/21/2012 | US8120336 Switching regulator circuit, system, and method for providing input current measurement without a dedicated input current sense element |
| 02/21/2012 | US8120335 Average inductor current mode switching converters |
| 02/21/2012 | US8120334 System and method for phase management in a multiphase switching power supply |
| 02/21/2012 | US8120299 Motor controller of air conditioner |
| 02/21/2012 | US8120285 Driving method for discharge lamp, driving device for discharge lamp, light source device, and image display apparatus |
| 02/21/2012 | US8120281 Light beam control system for a spatial light modulator |
| 02/21/2012 | US8120280 Circuits and methods for controlling a light source |
| 02/21/2012 | US8120279 Color adjustable lamp |
| 02/21/2012 | US8120276 Light source emitting mixed-colored light and method for controlling the color locus of such a light source |
| 02/21/2012 | US8120275 Inverter and lamp driver including the same |
| 02/21/2012 | US8120208 Impedance-based power supply switch optimization |
| 02/16/2012 | WO2012021454A1 Drive circuit for a color temperature tunable led light source |
| 02/16/2012 | WO2012021428A1 Color temperature tunable led light source |
| 02/16/2012 | WO2012020103A2 Method for operation of a photovoltaic generator at an operating point of maximum power |
| 02/16/2012 | WO2012019563A1 Power management integrated circuit and control method thereof |
| 02/16/2012 | US20120039094 Interleaved type power factor correction circuit having transformer forming separated winding structure |
| 02/16/2012 | US20120038415 Method and apparatus for maintaining circuit stability |
| 02/16/2012 | US20120038413 Voltage adjusting circuit and motherboard including the same |
| 02/16/2012 | US20120038343 Constant current source and solid imaging apparatus using the same |
| 02/16/2012 | US20120038342 Voltage regulator for merchandise display security device |
| 02/16/2012 | US20120038341 Switching regulator and operation control method thereof |
| 02/16/2012 | US20120038340 Dynamic control loop for switching regulators |
| 02/16/2012 | US20120038339 System and Method for Powering an Information Handling System in Multiple Power States |
| 02/16/2012 | US20120038338 Output current detection of a voltage regulator |
| 02/16/2012 | US20120038337 Method and apparatus for controlling the operation of a snubber circuit |
| 02/16/2012 | US20120038336 Digital pwm control module |
| 02/16/2012 | US20120038335 Pulse modulation circuit and method |
| 02/16/2012 | US20120038334 Voltage regulator having an output voltage automatically adjusted according to a load current |
| 02/16/2012 | US20120038333 Coil-less stepdown power transformer |
| 02/16/2012 | US20120038332 Linear voltage regulator and current sensing circuit thereof |
| 02/16/2012 | US20120038331 Systems and Methods of Smooth Light Load Operation in a DC/DC Converter |
| 02/16/2012 | US20120038330 Method and an apparatus for controlling the output voltage of a boost converter composed of plural bridge devices |
| 02/16/2012 | US20120038329 System and Method for Controlling the Output Voltage of a Power Supply |
| 02/16/2012 | US20120038290 Method and apparatus for common use of power supply and display apparatus using the same |
| 02/16/2012 | DE102011080707A1 Integrierte Niederleistungs-Hochspannungsschaltungen Integrated low-power high-voltage circuits |
| 02/16/2012 | DE102011079514A1 System und Verfahren zum Steuern der Ausgangsspannung einer Stromversorgung System and method for controlling the output voltage of a power supply |
| 02/16/2012 | DE102010039271A1 Schaltung zum Regeln und Überwachen eines Signalstroms und Messumformer mit einer solchen Schaltung Circuit for controlling and monitoring a signal current and transmitter with such a circuit |
| 02/16/2012 | DE102010036966A1 Verfahren zum Betreiben eines Photovoltaikgenerators an einem Arbeitspunkt maximaler Leistung A method for operating a photovoltaic generator at an operating point of maximum power |
| 02/15/2012 | EP2418749A1 Power device and power control system |
| 02/15/2012 | CN102356532A System and method for limiting losses in an uninterruptible power supply |
| 02/15/2012 | CN102356368A Power supply control system and electronic device equipped with this system |
| 02/15/2012 | CN102354247A Maximum power point tracking method, photovoltaic system controller and photovoltaic system |
| 02/15/2012 | CN102354246A Active clamping circuit |
| 02/15/2012 | CN102354245A Band gap voltage reference source |
| 02/15/2012 | CN102354244A Temperature feed-forward compensation method for semiconductor heat treatment process |
| 02/15/2012 | CN102354243A Integrated linear voltage stabilizer |
| 02/15/2012 | CN102354242A Power control circuit |
| 02/15/2012 | CN102354241A Voltage/current conversion circuit |
| 02/15/2012 | CN102354240A Circuit structure capable of expanding high-frequency bandwidth |
| 02/15/2012 | CN102354239A Method for regulating mechanical potentiometer in digital potentiometer voltage-regulation circuit |
| 02/15/2012 | CN102354238A Variable voltage generation circuit |
| 02/15/2012 | CN101957627B 一种ldo稳压电路 One kind ldo regulator circuit |
| 02/15/2012 | CN101501799B 在电力系统设备的控制单元中生成数据信号的信号生成单元和方法 Signal generating unit and a method for generating a data signal in the control unit of the power system equipment |
| 02/15/2012 | CN101242140B 功率控制方法和电路以及电源装置 The power control method and circuit and power supply means |
| 02/14/2012 | US8116916 Homogeneity based diversity prediction method for transformer selection |
| 02/14/2012 | US8116106 Method and apparatus to select a parameter/mode based on a measurement during an initialization period |
| 02/14/2012 | US8115536 Self-oscillating switch circuit for use in a switching DC-DC converter |
| 02/14/2012 | US8115468 Controller and driver communication for switching regulators |
| 02/14/2012 | US8115467 DC-DC converter |
| 02/14/2012 | US8115466 Converter and driving method thereof |
| 02/14/2012 | US8115465 Method and apparatus for a high voltage power supply circuit |
| 02/14/2012 | US8115464 Boost circuit and power supply device |
| 02/14/2012 | US8115463 Compensation of LDO regulator using parallel signal path with fractional frequency response |
| 02/14/2012 | US8115462 Voltage regulator for an integrated circuit |
| 02/14/2012 | US8115461 Power supply circuit and battery device |
| 02/14/2012 | US8115460 Power conversion with zero voltage switching |
| 02/14/2012 | US8115459 ESR zero estimation and auto-compensation in digitally controlled buck converters |
| 02/14/2012 | US8115458 Driver |
| 02/14/2012 | US8115415 Backlight unit, display device comprising the same, and control method thereof |
| 02/14/2012 | US8115413 Module for controlling light emitting diode current for selective feedback, apparatus and method for driving light emitting diodes using the same |
| 02/14/2012 | US8115412 Drive device for light-emitting element |
| 02/14/2012 | US8115404 High pressure discharge lamp lighting device and luminaire |
| 02/09/2012 | WO2012018376A1 Method and apparatus for synchronous sine wave dimming of luminaries |
| 02/09/2012 | WO2012018155A1 Maximum power point tracking inverter control device for a solar power generation system |
| 02/09/2012 | US20120033747 Systems and Methods for Powering Circuits for a Communications Interface |
| 02/09/2012 | US20120033506 Semiconductor device |
| 02/09/2012 | US20120032939 Output circuit, data driver and display device |
| 02/09/2012 | US20120032748 Systems and Methods of Ripple Reduction in a DC/DC Converter |
| 02/09/2012 | US20120032734 Internal voltage generating circuit of semiconductor device |
| 02/09/2012 | US20120032663 Reduction of inrush current due to voltage sags with timing for input power voltage reconnection |
| 02/09/2012 | US20120032662 Reduction of inrush current due to voltage sags with input power voltage reconnection at zero crossing |
| 02/09/2012 | US20120032661 Switching power source apparatus |
| 02/09/2012 | US20120032660 Switching power source apparatus |
| 02/09/2012 | US20120032659 Power supply device |
| 02/09/2012 | US20120032658 Buck-Boost Converter Using Timers for Mode Transition Control |
| 02/09/2012 | US20120032657 Reducing shoot-through in a switching voltage regulator |
| 02/09/2012 | US20120032656 Voltage regulator for impedance matching and pre-emphasis, method of regulating voltage for impedance matching and pre-emphasis, voltage mode driver including the voltage regulator, and voltage-mode driver using the method |
| 02/09/2012 | US20120032655 Multistage voltage regulator circuit |
| 02/09/2012 | US20120032654 On-load tap changer comprising semiconductor switching elements |
| 02/09/2012 | US20120032653 Reduction of inrush current due to voltage sags with imepdance removal timing circuit |
| 02/09/2012 | US20120032652 Circuit for generating a clock signal for interleaved pfc stages and method thereof |
| 02/09/2012 | US20120032651 Method and device of electrical power |
| 02/09/2012 | US20120032508 Method and Apparatus for Peak Shifting Adjustment |