| 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) |
|---|
| 09/02/1999 | DE19808606A1 Elektrisches Gerät Electrical equipment |
| 09/01/1999 | EP0870220B1 Circuit for the production of an auxiliary voltage |
| 09/01/1999 | CN2336542Y Automatic voltage regulating controller for parallel running of two on-load regulating transformer |
| 08/31/1999 | US5946270 Over power supply voltage cut-off circuit |
| 08/31/1999 | US5945819 Voltage regulator with fast response |
| 08/31/1999 | US5945818 Load pole stabilized voltage regulator circuit |
| 08/31/1999 | US5945817 Integrated circuit power status indicator and method of using the same |
| 08/31/1999 | US5945816 Self-biased power isolator system |
| 08/31/1999 | US5945815 Current sharing apparatus and method for controlling parallel power devices |
| 08/31/1999 | US5945814 Method and apparatus for a low voltage high current bi-directional termination voltage regulator |
| 08/31/1999 | CA2074167C Solid state current controlled interruption system |
| 08/26/1999 | WO1999043075A1 Impedance angle control method |
| 08/26/1999 | WO1999042914A1 Trimmable voltage regulator feedback network |
| 08/26/1999 | DE19807875A1 Method for regulating the armature incident speed at an electromagnetic actuator by extrapolated estimation of the energy input |
| 08/25/1999 | CN2335307Y Guasi-resonating dc high-voltage generator with 75% high-voltage measuring button |
| 08/25/1999 | CN2335295Y Reactive power regulator |
| 08/25/1999 | CN2335294Y Three-phase reactive power automatic compensator |
| 08/25/1999 | CN1227013A Voltage to current converter for high frequency applications |
| 08/25/1999 | CN1226691A Energy saving ferromagnetic harmonization style anti-interface A. C. voltage stablized power supply |
| 08/24/1999 | US5942933 Internal voltage generation circuit for semiconductor device |
| 08/24/1999 | US5942882 Power control device and image forming apparatus utilizing the same |
| 08/24/1999 | US5942881 Constant-voltage power supply circuit with a current limiting circuit |
| 08/24/1999 | US5942880 Compensation control device for a power system |
| 08/24/1999 | US5942809 Method and apparatus for generating internal supply voltage |
| 08/19/1999 | DE19833956A1 Semiconductor circuit for DRAM, SRAM, etc. |
| 08/17/1999 | US5940287 Controller for a synchronous rectifier and power converter employing the same |
| 08/17/1999 | US5939998 System and method for reducing quiescent current in a microcontroller |
| 08/17/1999 | US5939905 For detecting when a control loop loses control |
| 08/17/1999 | US5939872 Thermal overload protection system providing supply voltage reduction in discrete steps at predetermined temperature thresholds |
| 08/17/1999 | US5939870 Voltage regulator |
| 08/17/1999 | US5939868 Method and apparatus for automatically controlling integrated circuit supply voltages |
| 08/17/1999 | US5939867 Low consumption linear voltage regulator with high supply line rejection |
| 08/17/1999 | US5939866 Preregulated DC-to-DC converter |
| 08/12/1999 | DE19817914C1 DC voltage network circuit for reading input signals for switching units with external DC supplies, esp. programmable small controllers |
| 08/11/1999 | EP0935329A1 Photovoltaic module with display indicator |
| 08/11/1999 | EP0934682A1 A power control apparatus for lighting systems |
| 08/11/1999 | EP0934617A1 Method and device for compensating reactive current portions by means of a compensation arrangement with a pulse current rectifier |
| 08/11/1999 | EP0759234B1 Switch with controlled rise and fall characteristics |
| 08/11/1999 | CN2333023Y Series-type electronic switching supply unit |
| 08/11/1999 | CN2332647Y Electric bicycle electrical control system with automatic return circuit |
| 08/11/1999 | CN1225334A Method and apparatus for controlling electromagnetic valve in industrial vehicle |
| 08/10/1999 | US5936460 Current source having a high power supply rejection ratio |
| 08/10/1999 | US5936446 PWM variable voltage load driver with peak voltage limitation |
| 08/10/1999 | US5936435 For comparing a first dc voltage with a second dc voltage |
| 08/10/1999 | US5936391 Partially temperature compensated low noise voltage reference |
| 08/10/1999 | US5936388 N-channel voltage regulator |
| 08/10/1999 | US5936314 Failure detecting device for a power supply changeover switch |
| 08/05/1999 | WO1999039351A1 A voltage regulator and boosting circuit for reading a memory cell at low voltage levels |
| 08/04/1999 | EP0933863A2 Electronic instrument |
| 08/04/1999 | EP0933861A1 Power source circuit for generating positive and negative voltages |
| 08/04/1999 | EP0932927A1 Control apparatus with reduced quiescent current |
| 08/04/1999 | EP0932858A1 Hybrid regulator |
| 08/04/1999 | CN1044537C Power voltage supply circuit |
| 08/04/1999 | CN1044536C Power converter protecting apparatus for electric power system |
| 08/03/1999 | US5933337 Voltage rectifying and smoothing circuit |
| 08/03/1999 | US5932997 Bit-weighted regulator |
| 08/03/1999 | US5932996 Low cost current mode control switching power supply without discrete current sense resistor |
| 08/03/1999 | US5932994 Solar cell power source device |
| 08/03/1999 | US5932990 Charging control system for uniformly charging a series connected battery array |
| 08/03/1999 | US5932933 Structure of power supply system |
| 08/03/1999 | US5931876 Tracking control circuit for automatic guide vehicle |
| 07/29/1999 | WO1999038248A1 Ac power converter |
| 07/29/1999 | WO1999038059A1 A method and a device for controlling a secondary voltage in a transformer device connected to a power network and comprising an on-load tap-changer |
| 07/28/1999 | CN2331019Y Intelligent power regulating reactive compensation device |
| 07/28/1999 | CN1224516A Electronic circuit, semiconductor device, electronic equipment, and clock |
| 07/28/1999 | CN1224265A Inverter control unit |
| 07/28/1999 | CN1224264A Compensation control arrangement for power system |
| 07/28/1999 | CN1224185A Auto-controlled constant-current high-voltage DC power supply |
| 07/28/1999 | CN1044412C Source voltage control circuit |
| 07/27/1999 | US5929696 Circuit for converting internal voltage of semiconductor device |
| 07/27/1999 | US5929623 Regulated power supply circuit |
| 07/27/1999 | US5929621 Generation of temperature compensated low noise symmetrical reference voltages |
| 07/27/1999 | US5929620 Switching regulators having a synchronizable oscillator frequency with constant ramp amplitude |
| 07/27/1999 | US5929617 LDO regulator dropout drive reduction circuit and method |
| 07/27/1999 | US5929616 Device for voltage regulation with a low internal dissipation of energy |
| 07/27/1999 | US5929615 Step-up/step-down voltage regulator using an MOS synchronous rectifier |
| 07/27/1999 | US5929539 Semiconductor memory device adaptable to external power supplies of different voltage levels |
| 07/27/1999 | CA2174684C Rectifier control system |
| 07/27/1999 | CA2162501C Voltage regulators |
| 07/23/1999 | CA2227747A1 Buck regulator with plural outputs |
| 07/21/1999 | EP0930619A2 A voltage reference circuit |
| 07/21/1999 | EP0930555A2 Integrated circuit with at least one digital part |
| 07/21/1999 | EP0929934A1 Merged transconductance amplifier |
| 07/21/1999 | CN2330101Y Regulator for magnetor |
| 07/21/1999 | CN1223729A Voltage-to-current converter |
| 07/21/1999 | CN1044304C Improved power converter device for direct current power supply to an electric arc furnace |
| 07/20/1999 | US5926384 DC-dC converter having dynamic regulator with current sourcing and sinking means |
| 07/20/1999 | US5926009 Voltage monitoring circuit in an integrated circuit |
| 07/20/1999 | US5925986 Method and apparatus for controlling power delivered to a fluorescent lamp |
| 07/20/1999 | US5925278 Universal power supply for multiple loads |
| 07/15/1999 | WO1999035546A1 Current subtractor device |
| 07/14/1999 | CN1222788A AC or bipolar equivalent or non-equipment application circuit of polar capacity |
| 07/14/1999 | CN1222695A Method of monitoring the functional capability of tap selector |
| 07/13/1999 | US5923211 Reference voltage generation scheme for gate oxide protected circuits |
| 07/13/1999 | US5923158 Power control apparatus for solar power generation system |
| 07/13/1999 | US5923157 Semiconductor device capable of decreasing an internal voltage in period of acceleration test |
| 07/13/1999 | US5923156 N-channel voltage regulator |
| 07/13/1999 | US5923155 Circuit for the production of an auxiliary voltage |
| 07/13/1999 | US5923152 Power factor correction circuit with soft switched boost converter |
| 07/13/1999 | US5923100 Satellite |