| 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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| 02/04/2009 | EP2019982A2 Transformerless utility-grid-interactive inverter |
| 02/04/2009 | CN201191939Y Electronic ballast detecting strip lamp state and regulating lightness |
| 02/04/2009 | CN201191824Y Radio transmitter |
| 02/04/2009 | CN201191810Y Electric power adapter |
| 02/04/2009 | CN201191808Y Single period feedforward switching control circuit |
| 02/04/2009 | CN201191757Y Fast low voltage difference current limiting circuit |
| 02/04/2009 | CN100459395C Adjustable frequency-stabilizing voltage-stabilizing variable-frequency variable-voltage power supply |
| 02/04/2009 | CN100459393C Two-way AC chopper |
| 02/04/2009 | CN100459384C Boost circuit capable of variably control rate of voltage rise |
| 02/04/2009 | CN100459382C Voltage control device for supplying drive voltage to multiple loads and electronic equipment with same |
| 02/04/2009 | CN100459127C Semiconductor integrated circuit |
| 02/04/2009 | CN100458637C Low harmonic current power regulating method and apparatus |
| 02/04/2009 | CN100458636C Power supply circuit and communications equipment comprising a power supply circuit |
| 02/04/2009 | CN100458635C Remote controller for high precision DC power supply |
| 02/04/2009 | CN100458634C Active voltage positioning implementation for microprocessor power supplies or the like |
| 02/04/2009 | CN100458633C Capacitor amplifier circuit |
| 02/03/2009 | US7486129 Low power voltage reference |
| 02/03/2009 | US7486128 Charge pump control circuit and control method thereof |
| 02/03/2009 | US7486063 Versatile system for high-power switching controller in low-power semiconductor technology |
| 02/03/2009 | US7486062 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power |
| 02/03/2009 | US7486061 Power supply apparatus |
| 02/03/2009 | US7486060 Switching voltage regulator comprising a cycle comparator for dynamic voltage scaling |
| 02/03/2009 | US7486059 Power supply circuit, and testing apparatus |
| 02/03/2009 | US7486058 Circuit and method combining a switching regulator with one or more low-drop-out linear voltage regulators for improved efficiency |
| 02/03/2009 | US7486057 Electrical regulator health monitor circuit systems and methods |
| 02/03/2009 | US7486056 Input current or voltage limited power supply |
| 02/03/2009 | US7486055 DC-DC converter having a diode module with a first series circuit and a second series with a flywheel diode |
| 02/03/2009 | US7486054 Method for generating a reading signal of a sense element comprised into at least a phase of a multiphase controller |
| 02/03/2009 | US7486033 Lighting device |
| 02/03/2009 | CA2122438C Control procedure of a power converter device for supplying a continuous current to an electric arc furnace |
| 01/29/2009 | WO2009015148A2 Dimming system powered by two current sources and having an operation indicator module |
| 01/29/2009 | WO2009014826A1 An integrated cmos dc-dc converter implementation in low-voltage cmos technology using ldo regulator |
| 01/29/2009 | WO2009013834A1 Power supply system and voltage stabilizing method |
| 01/29/2009 | WO2009013572A1 Start-up circuit element for a controlled electrical supply |
| 01/29/2009 | US20090027957 Voltage supply circuit and flash memory device including the same, and method of supplying operating voltage |
| 01/29/2009 | US20090027114 Semiconductor integrated circuit and activation method of the same |
| 01/29/2009 | US20090027113 Reference voltage generating circuit and offset-compensated current-voltage converting circuit using the same |
| 01/29/2009 | US20090027111 alternating current level detection circuit |
| 01/29/2009 | US20090027110 High voltage generator |
| 01/29/2009 | US20090027109 Charge pump circuit with bipolar output |
| 01/29/2009 | US20090027107 Semiconductor device and offset voltage adjusting method |
| 01/29/2009 | US20090027031 Low noise bandgap voltage reference |
| 01/29/2009 | US20090027029 Load control unit |
| 01/29/2009 | US20090027028 Pulse width modulated controller applied to switch-type voltage regulator |
| 01/29/2009 | US20090027027 Anti-ring asynchronous boost converter and anti-ring method for an asynchronous boost converter |
| 01/29/2009 | US20090027026 Window comparator with accurate levels for use in dc-dc converters |
| 01/29/2009 | US20090027025 Non-linear pwm controller |
| 01/29/2009 | US20090027024 Load current compensation in synchronous power converters |
| 01/29/2009 | US20090027023 Switching regulator circuit |
| 01/29/2009 | US20090027022 Charge pump circuit, and control circuit and control method thereof |
| 01/29/2009 | US20090027021 Dead-time transition adjustments for synchronous power converters |
| 01/29/2009 | US20090027020 Threshold voltage monitoring and control in synchronous power converters |
| 01/29/2009 | US20090027019 Control loop for switching power converters |
| 01/29/2009 | US20090027018 Integrated circuit and a method for selecting a voltage in an integrated circuit |
| 01/29/2009 | US20090027017 Circuit arrangement for the regulation of a current through a load |
| 01/29/2009 | US20090027016 Auxiliary lighting circuit for a gaseous discharge lamp |
| 01/29/2009 | US20090026981 Light emitting element driver device |
| 01/29/2009 | US20090026977 Drive unit, smoothing circuit, dc/dc converter |
| 01/29/2009 | US20090026881 Piezoelectric fan, method of cooling a microelectronic device using same, and system containing same |
| 01/29/2009 | US20090026840 Apparatus and method for supplying power to an inductive load |
| 01/28/2009 | EP2019349A1 Switching device for temperature-dependant load current control |
| 01/28/2009 | EP1787182A4 Direct amplitude modulation for switch power supplies |
| 01/28/2009 | CN201188584Y Large-capacity essential safety power supply for coal mine |
| 01/28/2009 | CN101356483A Voltage regulator |
| 01/28/2009 | CN101356482A Digital controller |
| 01/28/2009 | CN101355317A Power converter and power unit |
| 01/28/2009 | CN101354922A Voltage supply circuit and flash memory device including the same, and method of supplying operating voltage |
| 01/28/2009 | CN101354595A Low pressure drop voltage stabilizer for enhancing linearity and load regulation rate characteristic |
| 01/28/2009 | CN100456597C Constant voltage power supply circuit and method of controlling the same |
| 01/28/2009 | CN100456390C Multi-pattern multi-stage charge pump |
| 01/27/2009 | US7483826 Group-based BCU methods for on-line dynamical security assessments and energy margin calculations of practical power systems |
| 01/27/2009 | US7482964 Switching between lower and higher power modes in an ADC for lower/higher precision operations |
| 01/27/2009 | US7482859 Automatic current trimming method & circuits |
| 01/27/2009 | US7482858 Temperature-sensitive current source |
| 01/27/2009 | US7482857 Unified bandgap voltage and PTAT current reference circuit |
| 01/27/2009 | US7482856 VPP voltage generator for generating stable VPP voltage |
| 01/27/2009 | US7482796 Switching regulator, power supply circuit and secondary cell charging circuit including the same |
| 01/27/2009 | US7482795 Pre-bias protection circuit for converter |
| 01/27/2009 | US7482794 System, method and apparatus for controlling converters using input-output linearization |
| 01/27/2009 | US7482793 Ripple generation in buck regulator using fixed on-time control to enable the use of output capacitor having any ESR |
| 01/27/2009 | US7482792 IC with fully integrated DC-to-DC power converter |
| 01/27/2009 | US7482791 Constant on-time regulator with internal ripple generation and improved output voltage accuracy |
| 01/27/2009 | US7482790 Voltage regulator output stage with low voltage MOS devices |
| 01/27/2009 | US7482789 Step-up converter |
| 01/27/2009 | US7482788 Buck converter for both full load and light load operations |
| 01/27/2009 | US7482767 Regenerative motor propulsion systems |
| 01/27/2009 | US7482764 Light sources for illumination of liquids |
| 01/27/2009 | US7482763 Non-PWM vehicle lamp dimming arrangement |
| 01/27/2009 | US7482762 Discharge lamp ballast with detection of abnormal discharge outside the arc tube |
| 01/22/2009 | WO2008142121A3 Voltage regulator and method for regulating voltage |
| 01/22/2009 | US20090022483 Device and method for driving a single phase motor |
| 01/22/2009 | US20090021968 Switching power supply apparatus and power supply control semiconductor integrated circuit |
| 01/22/2009 | US20090021314 Structure for a Phase Locked Loop with Adjustable Voltage Based on Temperature |
| 01/22/2009 | US20090021308 Voltage Regulator Startup Method and Apparatus |
| 01/22/2009 | US20090021233 Pwm controller with output current limitation |
| 01/22/2009 | US20090021232 Switching Regulator |
| 01/22/2009 | US20090021231 Voltage regulator |
| 01/22/2009 | US20090021230 Driving device and dislay device including the same |
| 01/22/2009 | US20090021229 Method and Apparatus for Enabling a Voltage Regulator |
| 01/22/2009 | US20090021228 Integrated cmos dc-dc converter implementation in low-voltage cmos technology using ldo regulator |