| 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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| 12/28/2005 | CN1234203C Electronic stepless regulating AC voltage-regulating and stabilizing apparatus |
| 12/27/2005 | US6980048 Voltage generating circuit capable of supplying stable output voltage regardless of external input voltage |
| 12/27/2005 | US6980047 Low power high voltage ramp-up control circuit |
| 12/27/2005 | US6980046 Charge pump circuit using active feedback controlled current sources |
| 12/27/2005 | US6979989 Maximum power sensor for photovoltaic system |
| 12/27/2005 | US6979988 Duty cycle estimation |
| 12/27/2005 | US6979984 Method of forming a low quiescent current voltage regulator and structure therefor |
| 12/27/2005 | US6979983 Voltage regulator |
| 12/27/2005 | US6979980 Soft switching interleaved power converter |
| 12/22/2005 | WO2005055404A3 Adaptive delay control circuit for switched mode power supply |
| 12/22/2005 | US20050283631 System and method for performing power sequencing |
| 12/22/2005 | US20050280465 Internal power supply voltage generation circuit that can suppress reduction in internal power supply voltage in neighborhood of lower limit region of external power supply voltage |
| 12/22/2005 | US20050280464 Constant voltage outputting circuit |
| 12/22/2005 | US20050280463 Back-bias voltage regulator having temperature and process variation compensation and related method of regulating a back-bias voltage |
| 12/22/2005 | US20050280448 Circuit arrangement for selective generation of an analog current output value or an analog voltage output value |
| 12/22/2005 | US20050280405 Apparatus and method for improving electromagnetic compatibility |
| 12/22/2005 | US20050280404 Current replication to avoid LEB restriction of DC-DC boost converter |
| 12/22/2005 | US20050280403 MOSFET drive circuit, programmable power supply and semiconductor test apparatus |
| 12/22/2005 | US20050280402 DC-DC converting method and apparatus |
| 12/22/2005 | US20050280401 Efficiency improvement of DC-DC converter |
| 12/22/2005 | US20050280376 Transistorized, voltage-controlled dimming circuit |
| 12/22/2005 | US20050280375 Light emitting apparatus generating white light by mixing of light of a plurality of oscillation wavelengths |
| 12/22/2005 | US20050280374 Apparatus and method for driving lamp of liquid crystal display device |
| 12/22/2005 | DE202005016260U1 Multi-phase transformer assembly for generating alternating or direct current voltage, has primary phase paths connected to multi-phase input voltage at input side, and current influencing device provided between rectifier and load |
| 12/22/2005 | DE102004025909A1 Constant current supply for such as LED lights on an automobile has a fault detection circuit to provide status data |
| 12/21/2005 | EP1608208A2 Circuit with shut-down device for operating light sources |
| 12/21/2005 | EP1606680A2 Low power implementation for input signals of integrated circuits |
| 12/21/2005 | EP1606679A2 High voltage offset detection circuit and method |
| 12/21/2005 | CN1232938C Reference voltage generating circuit and generating method, display drive circuit and display |
| 12/20/2005 | US6978386 Method and apparatus for regulating current for programmable logic controllers |
| 12/20/2005 | US6977829 Current distribution circuit |
| 12/20/2005 | US6977535 Differential current output unit |
| 12/20/2005 | US6977492 Output regulator |
| 12/20/2005 | US6977491 Current limiting voltage regulation circuit |
| 12/20/2005 | US6977490 Compensation for low drop out voltage regulator |
| 12/20/2005 | US6977488 DC-DC converter |
| 12/15/2005 | WO2005119911A1 Power supply voltage monitoring circuit and electronic device incorporating the same |
| 12/15/2005 | WO2005119711A1 Variable inductive device |
| 12/15/2005 | WO2005119393A1 A hybrid ac / dc system for electric power |
| 12/15/2005 | WO2005079447A3 Switching power supply controller with built-in supply switching |
| 12/15/2005 | WO2005001961A3 Energy storage system |
| 12/15/2005 | US20050275990 Method of protecting semiconductor device and protection apparatus for semiconductor device using the same |
| 12/15/2005 | US20050275978 Apparatus for protecting bicycle electrical components |
| 12/15/2005 | US20050275551 Method and apparatus for brightness control of indication lights |
| 12/15/2005 | US20050275460 Current-mode instrumentation amplifier |
| 12/15/2005 | US20050275453 Current-mode instrumentation amplifier gain error correction circuitry |
| 12/15/2005 | US20050275452 Precision chopper-stabilized current mirror |
| 12/15/2005 | US20050275394 Current-limiting circuitry |
| 12/15/2005 | US20050275392 Boost converter |
| 12/15/2005 | US20050275391 Power supply apparatus provided with overcurrent protection function |
| 12/15/2005 | US20050275390 Apparatus and methods for regulated voltage |
| 12/15/2005 | US20050275389 Voltage level translator circuitry |
| 12/15/2005 | US20050275388 Circuit and method for controlling DC-DC converter |
| 12/15/2005 | US20050275387 Method and apparatus for reducing input supply ripple in a DC-DC switching converter |
| 12/15/2005 | US20050275356 Circuit with switch-off device for the operation of light sources |
| 12/15/2005 | US20050275355 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies |
| 12/15/2005 | CA2509876A1 Circuit with switch-off device for the operation of light sources |
| 12/14/2005 | EP1604891A1 Apparatus for protecting bicycle electrical components |
| 12/14/2005 | EP1604254A2 System and method for controlling output-timing parameters of power converters |
| 12/14/2005 | EP0908000B1 Wireless selective tripping of ac power systems connected in parallel |
| 12/14/2005 | CN1708893A Power-on management for voltage down-converter |
| 12/14/2005 | CN1707927A Boost converter |
| 12/14/2005 | CN1707896A Electric power device and power source control method |
| 12/14/2005 | CN1707596A Display device |
| 12/14/2005 | CN1707381A Power supply device and vehicle lamp |
| 12/14/2005 | CN1706704A Protective circuit of electronic device for bicycle use |
| 12/14/2005 | CN1232040C Semiconductor integrated circuit |
| 12/13/2005 | US6975946 Reactive power optimization with adaptive excitation control |
| 12/13/2005 | US6975522 Device and method for inhibiting power fluctuation |
| 12/13/2005 | US6975314 Power circuit for display driver, display device, and camera |
| 12/13/2005 | US6975164 Method and device for generating constant voltage |
| 12/13/2005 | US6975163 Precision margining circuitry |
| 12/13/2005 | US6975162 Constant current driving circuit |
| 12/13/2005 | US6975099 Efficient frequency compensation for linear voltage regulators |
| 12/13/2005 | US6975098 Factorized power architecture with point of load sine amplitude converters |
| 12/13/2005 | US6975079 Systems and methods for controlling illumination sources |
| 12/13/2005 | US6975078 Dimming-control lighting apparatus for incandescent electric lamp |
| 12/08/2005 | US20050270089 Power-up and BGREF circuitry |
| 12/08/2005 | US20050270086 Charge pump power supply circuit |
| 12/08/2005 | US20050270010 Voltage-controlled current source capable of controlling output current by a wide range of control voltage |
| 12/08/2005 | US20050270009 Display device |
| 12/08/2005 | US20050270008 Adaptive dual-slope frequency controller for adjusting power conversion |
| 12/08/2005 | US20050270007 Simplified adaptive control method for power converters |
| 12/08/2005 | US20050270006 System and method for providing digital pulse width modulation |
| 12/08/2005 | US20050270005 Method and apparatus for determining load current in a CPU core voltage regulator |
| 12/08/2005 | US20050270004 DC-DC CMOS converter |
| 12/08/2005 | US20050270003 Modulated reference voltage control for current mode switching regulators |
| 12/08/2005 | US20050270001 Soft switching high efficiency flyback converter |
| 12/08/2005 | US20050270000 Single-stage buck-boost inverter |
| 12/08/2005 | US20050269999 Real-time voltage detection and protection circuit for PFC boost converters |
| 12/08/2005 | US20050269968 Power supply device and vehicle lamp |
| 12/07/2005 | EP1602998A1 Voltage regulator with multiple feedback |
| 12/07/2005 | EP1602997A1 Voltage regulator with signal generator having high output impedance |
| 12/07/2005 | EP1602996A1 Voltage-controlled current source capable of controlling output current by a wide range of control voltage |
| 12/07/2005 | EP1602016A1 On chip power supply |
| 12/07/2005 | CN2745097Y High-power semiconductor laser accurate current control device |
| 12/06/2005 | USRE38906 Current mode DC/DC converter with controlled output impedance |
| 12/06/2005 | US6973337 Apparatus for the mobile communication device in low power consumption using LDO regulator with sleep mode |
| 12/06/2005 | US6972940 Power supply protection circuit |
| 12/06/2005 | US6972547 Power supply for positive and negative output voltages |