| 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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| 07/15/1998 | CN1187749A Gas discharge lamp ballast with power factor correction |
| 07/14/1998 | US5781391 IC having built-in over voltage protecting circuit |
| 07/14/1998 | US5781060 Semiconductor integrated circuit device having a variable current source controlled by a shift register |
| 07/14/1998 | US5781001 Display-driving voltage generating apparatus |
| 07/14/1998 | US5780921 Bipolar transistor constant voltage source circuit |
| 07/14/1998 | US5780821 Method of controlling food thawing and cooking operations of a microwave oven |
| 07/14/1998 | US5779817 Circuit arrangement of solar cells |
| 07/09/1998 | WO1998029788A1 Method and device for automatically switching three-phase voltage for power saving transformer |
| 07/07/1998 | US5777462 Electronic system |
| 07/07/1998 | US5777460 Voltage step-up circuit with output voltage regulation |
| 07/02/1998 | WO1998028835A1 Protecting method for inrush current preventing resistor |
| 07/02/1998 | WO1998028834A1 Improvement in energy savings apparatus |
| 07/02/1998 | DE19756916A1 Thermistor-based monitoring system as watchdog for electrical loads |
| 07/02/1998 | DE19722127C1 Power supply unit for personal computer |
| 07/01/1998 | EP0851332A2 A voltage regulator |
| 07/01/1998 | EP0850800A2 Fuel cell generating set including lysholm compressor |
| 07/01/1998 | CN2285485Y Three-phase respective adjusment automatic compensation type voltage stabilizer with ac electric energy real effective value convertor |
| 07/01/1998 | CN1038970C Tree network complex voltage control device |
| 06/30/1998 | US5774813 Method and apparatus for controlling the power consumption of an electronic device |
| 06/30/1998 | US5774734 For a general purpose computer |
| 06/30/1998 | US5774347 Apparatus and method for supplying power to an electronic device requiring a monentary supply of extra high power |
| 06/30/1998 | US5774321 Power supply circuit with load protection function |
| 06/30/1998 | US5774021 Merged transconductance amplifier |
| 06/30/1998 | US5774013 Proportional to absolute temperature current source |
| 06/30/1998 | US5773968 Internal voltage conversion circuit |
| 06/30/1998 | US5773967 Voltage reference with testing and self-calibration |
| 06/25/1998 | WO1998027476A1 Flicker controllers using voltage source converters |
| 06/24/1998 | EP0849655A2 Alternating current power control device |
| 06/24/1998 | CN2284974Y Chip microcomputer controlled wattless power compensating controller |
| 06/24/1998 | CN1185600A A. C. electricity control device |
| 06/23/1998 | US5771198 Source voltage generating circuit in semiconductor memory |
| 06/23/1998 | US5771164 Power supply converter for suppressing higher harmonics to output a stable voltage |
| 06/23/1998 | US5770959 Circuit for providing the power-up state of an electrical device |
| 06/23/1998 | US5770940 Switching regulator |
| 06/18/1998 | WO1998026498A1 High-voltage ac to low-voltage dc converter |
| 06/18/1998 | WO1998026489A1 APPARATUS FOR AND METHOD OF EVENLY DISTRIBUTING AN ELECTRICAL LOAD ACROSS AN n-PHASE POWER DISTRIBUTION NETWORK |
| 06/17/1998 | EP0813705A4 High precision voltage regulation circuit for programming multilevel flash memory |
| 06/17/1998 | EP0764296A4 Load tap changer |
| 06/17/1998 | EP0748471A4 An electrically controllable inductor |
| 06/17/1998 | CN2284420Y A. C. voltage stablizer |
| 06/16/1998 | US5768549 Input interface using multiplex type input circuit |
| 06/16/1998 | US5768117 Power supply system for supplying electric power to a load through plural converters |
| 06/16/1998 | US5767664 Bandgap voltage reference based temperature compensation circuit |
| 06/11/1998 | WO1998025192A1 System and method for controlling an alternating current (ac) signal |
| 06/10/1998 | EP0846996A1 Power transistor control circuit for a voltage regulator |
| 06/10/1998 | EP0846589A2 Compound cruise control system and method for solar cars |
| 06/10/1998 | EP0598849B1 Low power switching power supply circuits and methods |
| 06/10/1998 | CN2283886Y AC regulation type DC regulated power supply |
| 06/10/1998 | CN2283885Y Voltage stabilizing and current stablized power source |
| 06/09/1998 | US5764460 Circuit for the protection against overcurrents in power electronic devices and corresponding method |
| 06/09/1998 | US5764041 Short circuit limitation current for power transistors |
| 06/09/1998 | US5764040 Transient tolerant power supply method and apparatus |
| 06/03/1998 | EP0845852A2 A power source driving device |
| 06/03/1998 | CN1183646A 电力控制器件 Power control device |
| 06/03/1998 | CN1183571A Power supply device, liquid crystal display device, and method of supplying power |
| 06/02/1998 | US5761055 Driving pulse output limiting circuit |
| 06/02/1998 | US5760640 Between a first and second supply voltage |
| 06/02/1998 | US5760614 Potential detecting circuit and semiconductor integrated circuit |
| 06/02/1998 | US5760572 Intermittent motion apparatus |
| 06/02/1998 | US5760571 Power supply damping circuit and method |
| 05/28/1998 | WO1998022959A1 Saturation choke coil |
| 05/27/1998 | EP0844737A2 Input buffer circuit and bidirectional buffer circuit for plural voltage systems |
| 05/27/1998 | EP0843913A1 Appliance ac power control apparatus |
| 05/27/1998 | CN2282699Y Domestic ac automatic voltage stabilizer |
| 05/27/1998 | CN2282698Y Internal control type switch voltage stabilizer |
| 05/26/1998 | US5757226 Reference voltage generating circuit having step-down circuit outputting a voltage equal to a reference voltage |
| 05/26/1998 | US5757206 Electronic circuit with programmable gradual power consumption control |
| 05/26/1998 | US5757172 Temperature and current dependent regulated voltage source |
| 05/26/1998 | US5757171 On-board voltage regulators with automatic processor type detection |
| 05/26/1998 | US5757168 Primary regulator for an unregulated linear power supply and method |
| 05/26/1998 | US5757167 Voltage regulator |
| 05/20/1998 | EP0843399A2 Battery backed configurable output buffer |
| 05/20/1998 | EP0843247A2 Regulator built-in semiconductor integrated circuit |
| 05/20/1998 | EP0842460A1 Method and device for continuous adjustment and regulation of a transformer turns ratio, and transformer provided with such a device |
| 05/20/1998 | EP0842437A1 Vcc level detection circuit |
| 05/20/1998 | DE19622973A1 Fixed voltage regulator |
| 05/20/1998 | CN1038460C Voltage stabilizer |
| 05/19/1998 | US5754473 Circuit for the switching of supply voltages in electrically programmable and cancelable non-volatile semiconductor memory devices |
| 05/19/1998 | US5754414 Self-compensating switching power converter |
| 05/19/1998 | US5754039 Voltage-to-current converter using current mirror circuits |
| 05/19/1998 | US5754037 Digitally adaptive biasing regulator |
| 05/19/1998 | US5754036 Energy saving power control system and method |
| 05/19/1998 | US5754034 Electrically controllable inductor |
| 05/19/1998 | US5753841 PC audio system with wavetable cache |
| 05/13/1998 | CN2281605Y Electromagnetic apparatus adjuster |
| 05/13/1998 | CN2281603Y Multifunctional distributing box for school |
| 05/12/1998 | US5751652 Semiconductor apparatus having a voltage unit and a backup unit for providing a reduced power consumption |
| 05/12/1998 | US5751566 Current stabilizer with step-up transformer |
| 05/12/1998 | US5751531 Protection circuit against high energy overvoltages, having a controlled clipping voltage |
| 05/12/1998 | US5751140 Voltage converter with battery discharge protection |
| 05/07/1998 | DE19638880C1 Apparatus for feeding current into ac network |
| 05/06/1998 | EP0839438A1 Ballast |
| 05/06/1998 | CN2280948Y Computer controlled energy-saving ac. stabilizer |
| 05/06/1998 | CN2280947Y Stabilizer with arc-suppression function |
| 05/06/1998 | CN2280946Y Three-phase inductive separatable stabilizer |
| 05/06/1998 | CN2280945Y A. C. stabilizer |
| 05/06/1998 | CN1180853A Output driving circuit for use in DC stabilized power supply circuit |
| 05/05/1998 | US5748033 Differential power bus comparator |
| 05/05/1998 | US5747978 Circuit for generating a reference voltage and detecting an under voltage of a supply and corresponding method |
| 05/05/1998 | US5747974 Internal supply voltage generating circuit for semiconductor memory device |