| 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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| 04/27/2005 | CN1199335C Power circuit and power supply method |
| 04/26/2005 | US6885530 Power limiting time delay circuit |
| 04/26/2005 | US6885237 Internal step-down power supply circuit |
| 04/26/2005 | US6885233 Altering operating frequency and voltage set point of a circuit in response to the operating temperature and instantaneous operating voltage of the circuit |
| 04/26/2005 | US6885177 Switching regulator and slope correcting circuit |
| 04/26/2005 | US6885175 Fixed frequency hysteretic regulator |
| 04/26/2005 | US6885174 System for providing a regulated voltage to supply a load |
| 04/21/2005 | WO2005036296A1 Device and method for controlling the electrical current of an actuator |
| 04/21/2005 | US20050083736 Semiconductor integrated circuit |
| 04/21/2005 | US20050083112 Class AB voltage regulator |
| 04/21/2005 | US20050083111 Switching circuit for producing an adjustable output characteristic |
| 04/21/2005 | US20050083027 Constant-voltage power supply unit |
| 04/21/2005 | US20050083026 System and method for providing digital pulse width modulation |
| 04/21/2005 | US20050083025 Total feed forward switching power supply control |
| 04/21/2005 | US20050083024 Clocked cascading current-mode regulator with high noise immunity and arbitrary phase count |
| 04/21/2005 | US20050083023 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies |
| 04/21/2005 | US20050083022 Step-up converter having power factor correction |
| 04/21/2005 | US20050082989 Process and apparatus for improving LED performance |
| 04/21/2005 | DE19939501B4 Seriensteuerungs-Stellglied Series control actuator |
| 04/20/2005 | EP1524576A1 Step-up converter with power factor control |
| 04/20/2005 | EP1524575A2 Output regulator |
| 04/20/2005 | EP1524574A2 Voltage slicer |
| 04/20/2005 | EP1524573A2 Adaptive multi-mode system |
| 04/20/2005 | EP1524572A2 Power array system and method |
| 04/20/2005 | EP1524571A2 Output regulator system |
| 04/20/2005 | EP1524570A2 Adaptive control loop |
| 04/20/2005 | EP1524569A2 Duty cycle estimator |
| 04/20/2005 | EP1524568A2 Adaptive duty cycle limiter |
| 04/20/2005 | EP1524567A2 Duty cycle estimator |
| 04/20/2005 | EP1523702A2 Capacitive feedback circuit |
| 04/20/2005 | CN2694333Y Short-circuit output supply |
| 04/20/2005 | CN1607717A Energy saving discontinuous mode system |
| 04/20/2005 | CN1607716A Output regulator system |
| 04/20/2005 | CN1607483A DC-to-DC power regulator having non-linear load line and automatic leakage current offset adjustment |
| 04/20/2005 | CN1198387C Constant-voltage circuit and infrared telecontrol receiver using said constant-voltage circuit |
| 04/19/2005 | US6882215 Substrate bias generator in semiconductor memory device |
| 04/19/2005 | US6882131 Power supply apparatus |
| 04/16/2005 | CA2484687A1 Step-up converter having power factor correction |
| 04/14/2005 | WO2004109888A3 System to control integrated circuit resonance |
| 04/14/2005 | US20050078424 Overvoltage protection circuit, and power source, power supply system and electronic apparatus using the overvoltage protection circuit |
| 04/14/2005 | US20050077954 Amplifier with accurate built-in threshold |
| 04/14/2005 | US20050077952 Band gap constant voltage circuit |
| 04/14/2005 | US20050077923 Voltage trimming circuit |
| 04/14/2005 | US20050077884 DC/DC converter having improved regulation |
| 04/14/2005 | US20050077883 Dc-to-Dc power regulator having non-linear load line and automatic leakage current offset adjustment |
| 04/13/2005 | EP1522089A2 Method of protecting semiconductor device and protection apparatus for semiconductor device using the same |
| 04/13/2005 | CN1606899A Electronic ballast with rail voltage switching |
| 04/13/2005 | CN1606767A Electronic ballast with low voltage output |
| 04/13/2005 | CN1606395A Drive system and AC conversion apparatus |
| 04/13/2005 | CN1606222A Power supply controller and method therefor |
| 04/13/2005 | CN1606221A Switch power supply device and electronic instrument with display device |
| 04/13/2005 | CN1605972A Supply voltage control circuit of central processing unit |
| 04/13/2005 | CN1605964A 电压调节器 Voltage Regulator |
| 04/13/2005 | CN1197227C Multi-phase converter with balanced current |
| 04/12/2005 | US6879232 Wide ratio autotransformer-type current ranging |
| 04/12/2005 | US6879142 Power management unit for use in portable applications |
| 04/12/2005 | US6879136 Inductor current emulation circuit for switching power supply |
| 04/07/2005 | WO2005031894A2 Process and apparatus for improving led performance |
| 04/07/2005 | WO2005031487A1 Device for adjusting the impedance of a high voltage line supplying an alternating current |
| 04/07/2005 | US20050076249 Modular server system |
| 04/07/2005 | US20050073489 LED drive circuit |
| 04/07/2005 | US20050073356 Voltage generation circuits for supplying an internal voltage to an internal circuit and related methods |
| 04/07/2005 | US20050073355 High precision digital-to-analog converter with optimized power consumption |
| 04/07/2005 | US20050073350 Device and process for adjustment of an operating parameter of an analog electronic circuit |
| 04/07/2005 | US20050073289 Power supply apparatus |
| 04/07/2005 | US20050073288 Cascadable current-mode regulator |
| 04/07/2005 | US20050073287 Power supply controller and method therefor |
| 04/07/2005 | US20050073286 Fast-disabled voltage regulator circuit with low-noise feedback loop and operating method thereof |
| 04/07/2005 | DE10392376T5 Energiesparende Konfiguration für eine chipintegrierte Spannungsdifferenzierschaltungskonstruktion Energy-saving configuration for an on-chip voltage differential circuit design |
| 04/07/2005 | DE10338189A1 Schutzschaltung für ein Netzteil, sowie Netzteil mit diesbezüglicher Schutzschaltung Protection circuit for a power supply and power supply with this regard protection circuit |
| 04/07/2005 | CA2539911A1 Process and apparatus for improving led performance |
| 04/06/2005 | EP1521345A1 Power control apparatus for solar power generation system |
| 04/06/2005 | EP1521156A1 Regulating system |
| 04/06/2005 | EP1520337A1 Method and device for controlling voltage |
| 04/06/2005 | CN1605051A Electronic ballast with ignition and operation control |
| 04/06/2005 | CN1604712A LED drive circuit and LED drive system |
| 04/06/2005 | CN1604445A Energy saving discontinuous mode system and method |
| 04/06/2005 | CN1604437A 非接触供电系统 Non-contact power supply system |
| 04/06/2005 | CN1604002A Single zero compensator |
| 04/06/2005 | CN1604001A Power array system and method |
| 04/06/2005 | CN1604000A Adaptive multi-mode system |
| 04/06/2005 | CN1603999A Adaptive duty ratio regulator |
| 04/06/2005 | CN1603998A Duty ratio estimator |
| 04/06/2005 | CN1603997A Step-up/step-down switch stabilizer control circuit and step-up/step-down switch stabilizer |
| 04/06/2005 | CN1196196C Semiconductor integrated circuit |
| 04/05/2005 | US6876249 Circuit and method for a programmable reference voltage |
| 04/05/2005 | US6876180 Power supply circuit having a start up circuit |
| 04/05/2005 | US6876179 Hybrid reactive power compensation device |
| 04/05/2005 | US6876178 Hybrid reactive power compensation device |
| 03/31/2005 | WO2005029688A2 Dual stage voltage regulation circuit |
| 03/31/2005 | WO2005029211A1 Antenna detection and diagnostic system and related method |
| 03/31/2005 | US20050068092 Voltage regulator |
| 03/31/2005 | US20050068016 Power supply device |
| 03/31/2005 | US20050068015 Regulated sleep transistor apparatus, method, and system |
| 03/31/2005 | US20050068014 Semiconductor integrated circuit having voltage-down circuit regulator and charge sharing |
| 03/31/2005 | US20050068013 Apparatus and methods for power regulation of electrical loads to provide reduction in power consumption with reversing contactors |
| 03/31/2005 | US20050068009 Non-contact power supply system |
| 03/30/2005 | EP1519473A2 Synchronization of multiphase synthetic ripple voltage regulator |
| 03/30/2005 | EP1518155A1 Circuit comprising an integrated switching circuit and a voltage regulating circuit |
| 03/30/2005 | EP1428237B1 Safety switch device for safe disconnection of an electric consumer |