| 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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| 02/27/1999 | CA2245984A1 Power supply adapter circuit |
| 02/24/1999 | EP0897561A1 Voltage-to-current converter |
| 02/24/1999 | CN2308912Y Switching inverting a. c. power voltage stabilizer |
| 02/24/1999 | CN1208991A Reference voltage generating circuit of generating plurality of reference voltages |
| 02/24/1999 | CN1208982A Counter valtage inverse ratio regulation circuit system |
| 02/24/1999 | CN1042277C 电源供电电路 Power supply circuit |
| 02/23/1999 | US5875105 Power supply apparatus for controlling electrical elements of vehicles |
| 02/23/1999 | US5874827 Voltage supply circuit for a load absorbing high tentative peak current |
| 02/17/1999 | CN2308110Y Control current device with automatic circulation |
| 02/17/1999 | CN1208479A System and method for reducing current consumption of a micro controller |
| 02/17/1999 | CN1208477A Overload protection unit for readjusting switching elements |
| 02/16/1999 | CA2106504C Conversion apparatus |
| 02/11/1999 | WO1999007055A1 Method for injecting reactive power in an alternating current system, and inverter therefor |
| 02/11/1999 | WO1999006899A1 Automatic power supply sensing with on-chip regulation |
| 02/11/1999 | CA2298784A1 Method for injecting reactive power in an alternating current system, and inverter therefor |
| 02/10/1999 | EP0896270A1 Reverse proportional voltage adjusting circuit system |
| 02/10/1999 | EP0896269A1 Method and device for automatically switching three-phase voltage for power saving transformer |
| 02/10/1999 | CN2307309Y Automatic magnetic regulation voltage stabilizer |
| 02/10/1999 | CN1207605A Power supply with re-configurable outputs for different output voltages and method of operation thereof |
| 02/10/1999 | CN1207603A Dynamic regulator for DC-to-DC power converter and related methods |
| 02/09/1999 | US5869957 Voltage divider circuit, differential amplifier circuit and semiconductor integrated circuit device |
| 02/09/1999 | US5869956 For supplying a load with power output by a solar cell |
| 02/09/1999 | US5869953 Retrofittable energy saving device |
| 02/09/1999 | US5869948 Unidirectional battery charge/discharge controller for a regulated electrical bus system with a solar current source |
| 02/04/1999 | WO1998051071A3 Current source and threshold voltage generation method and apparatus to be used in a circuit for removing the equalization pulses in a composite video synchronization signal |
| 02/04/1999 | DE19746574C1 Method of functional monitoring of step switches |
| 02/04/1999 | DE19739496C1 Voltage regulator for motor vehicle |
| 02/03/1999 | EP0895147A1 Reference voltage generation circuit and reference current generation circuit |
| 02/03/1999 | EP0895146A1 Operating point control device of an electrical energy generator, especially of a solar generator |
| 02/03/1999 | EP0894294A1 Current control process |
| 02/03/1999 | EP0843913A4 Appliance ac power control apparatus |
| 02/03/1999 | CN2306526Y Voltage stabilized source for handset |
| 02/03/1999 | CN1206864A Reference voltage and current generating circuit |
| 02/03/1999 | CN1206863A Double power soruce supply device with voltage stabilizing function |
| 02/02/1999 | US5867715 Apparatus for programmably converting an operating voltage of a CPU and chipset |
| 02/02/1999 | US5867376 DC magnetization suppression in power converter transformers |
| 02/02/1999 | US5867056 Voltage reference support circuit |
| 02/02/1999 | US5867035 Voltage to current conversion circuit for converting voltage to multiple current outputs |
| 02/02/1999 | US5867015 Low drop-out voltage regulator with PMOS pass element |
| 02/02/1999 | US5867010 Circuit and method for voltage level translation utilizing a bias generator |
| 02/02/1999 | CA2158360C Method and control arrangement for dc transmission, and a control device |
| 02/02/1999 | CA2134383C Full shunt boost switching voltage limiter for solar panel array |
| 01/28/1999 | WO1999004475A2 Method and device for regulating alternating voltage |
| 01/28/1999 | DE19832712A1 AC voltage regulator using variable transformer |
| 01/27/1999 | EP0893876A2 Dynamic regulator for a dc-to-dc power converter and related methods |
| 01/27/1999 | EP0893749A1 Electronic switching circuit for reducing power-on switching transients |
| 01/27/1999 | EP0892945A1 Method and apparatus for automatically controlling intergrated circuit supply voltages |
| 01/27/1999 | CN2305700Y Automatic split-phase reactive power compensating controller |
| 01/27/1999 | CN2305699Y Field effect low voltage switch type regulating high precision DC. stable voltage power source |
| 01/27/1999 | CN1206477A Circuit for production of auxiliary voltage |
| 01/27/1999 | CN1041875C Method for displaying arrangement state of multiple adjustable transformer device and detector thereof |
| 01/26/1999 | US5864476 Power supply apparatus |
| 01/26/1999 | US5864227 Voltage regulator with output pull-down circuit |
| 01/26/1999 | US5864226 Integrated circuit for high speed and high frequency applications |
| 01/26/1999 | US5864225 Dual adjustable voltage regulators |
| 01/21/1999 | WO1999003028A1 Hybrid regulator |
| 01/20/1999 | EP0892486A1 Power supply with reconfigurable outputs for different output voltages and method of operation thereof |
| 01/20/1999 | EP0892332A1 Low power consumption linear voltage regulator having a fast response with respect to the load transients |
| 01/20/1999 | EP0771518B1 Electrical power control system |
| 01/20/1999 | CN2304936Y Multifunctional wide range constant voltage protector |
| 01/20/1999 | CN1041779C Method for stabilizing power supply network against reactive load fluctuations, and power factor compensation device |
| 01/19/1999 | US5861771 Regulator circuit and semiconductor integrated circuit device having the same |
| 01/19/1999 | US5861737 Soft-start switch with voltage regulation and current limiting |
| 01/19/1999 | US5861736 Circuit and method for regulating a voltage |
| 01/19/1999 | US5861735 Switching power supply circuit |
| 01/19/1999 | CA2115710C Power supply |
| 01/14/1999 | DE19728783A1 Overvoltage protection circuit for inputs to integrated circuits |
| 01/13/1999 | EP0891037A2 Pulse width modulation method for series connected converters |
| 01/13/1999 | EP0890895A2 Voltage regulator with load pole stabilization |
| 01/13/1999 | EP0789866B1 Voltage reference with testing and self-calibration |
| 01/12/1999 | US5859757 Output driving circuit for use in DC stabilized power supply circuit |
| 01/12/1999 | US5859563 Low-noise low-impedance voltage reference |
| 01/12/1999 | US5859528 Voltage-to-current converter for outputting a current which varies in proportion to an input voltage |
| 01/12/1999 | US5859489 Piezoelectric transformer driving circuit |
| 01/12/1999 | US5859413 Method for controlling a microwave oven to prevent overcooking of small food portions |
| 01/07/1999 | EP0888666A1 High-voltage ac to low-voltage dc converter |
| 01/07/1999 | DE19726773A1 Method of balancing current regulator |
| 01/05/1999 | US5856756 For generating an internal voltage from an external voltage |
| 01/05/1999 | US5856740 Shunt voltage regulator with a variable load unit |
| 12/30/1998 | EP0887868A2 Energy conversion system with heat recovery |
| 12/30/1998 | EP0887715A1 Apparatus for controlling the power supply to a load in a reproduction apparatus, more particularly to a fixing unit |
| 12/30/1998 | EP0886815A1 Method and apparatus for electronic power control |
| 12/30/1998 | EP0886814A1 System and method for controlling an alternating current (ac) signal |
| 12/30/1998 | EP0886785A1 Method for monitoring of tap changers by acoustic analysis |
| 12/30/1998 | CN1203703A Apparatus and method for interline power flow control |
| 12/29/1998 | US5854742 Logarithmic power compensation for a switching power supply |
| 12/29/1998 | CA2163498C Voltage and current mode power regulator |
| 12/29/1998 | CA2126405C Power regulation for redundant battery supplies |
| 12/24/1998 | DE19826735A1 Power supply circuit for integrated circuit with several operating frequency modes |
| 12/23/1998 | WO1998058302A1 Regulating device |
| 12/23/1998 | EP0886200A2 Circuit arrangement for generating a load-independent DC voltage |
| 12/23/1998 | EP0885415A1 Triac control circuit |
| 12/23/1998 | EP0885413A1 Low power trim circuit and method |
| 12/22/1998 | US5852359 Voltage regulator with load pole stabilization |
| 12/22/1998 | US5852358 Capactive power circuit |
| 12/22/1998 | US5852357 System and method for controlling an alternating current (AC) signal |
| 12/16/1998 | CN2300940Y Quick thyristor-controlled voltage-stabilizer |
| 12/16/1998 | CN1201926A Superwide voltage stable power supplier and special integrated circuit therefor |
| 12/15/1998 | US5850335 Isolation-type switching power supply |
| 12/15/1998 | US5850139 Load pole stabilized voltage regulator circuit |