| 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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| 04/14/1992 | US5105324 Device for protecting semiconductor circuits against transients on the supply line |
| 04/14/1992 | US5105145 Voltage control circuit |
| 04/14/1992 | US5105102 Output buffer circuit |
| 04/14/1992 | CA1298871C Load control system |
| 04/07/1992 | US5103160 Shunt regulator with tunnel oxide reference |
| 04/07/1992 | US5103158 Reference voltage generating circuit |
| 04/07/1992 | US5103157 Common emitter amplifiers operating from a multiplicity of power supplies |
| 04/07/1992 | US5103110 Programmable power supply |
| 04/07/1992 | US5103109 Ground-loop interruption circuit |
| 04/07/1992 | US5102513 Apparatus and method for recovering metals from solutions |
| 04/02/1992 | WO1992005623A1 Variable transformer switching power supply |
| 04/01/1992 | EP0478232A2 Power factor improving arrangement |
| 04/01/1992 | EP0477907A2 A constant current circuit and an oscillating circuit controlled by the same |
| 04/01/1992 | EP0477643A2 Control of a discontinuous current by a thyristor rectifier with inductive load |
| 03/28/1992 | CA2050068A1 Power factor improving arrangement |
| 03/25/1992 | EP0477165A2 Current-limiting circuit |
| 03/25/1992 | EP0477088A2 Semiconductor integrated circuit having means for suppressing a variation in a threshold level due to temperature variation |
| 03/25/1992 | EP0476618A2 Reactive power compensating apparatus with higher harmonic supressing function |
| 03/25/1992 | EP0476440A2 Transient protected isolator output stage |
| 03/25/1992 | EP0476365A1 An adaptive bias current control circuit |
| 03/19/1992 | WO1992004669A1 Improved imstrumentation system |
| 03/18/1992 | EP0475832A2 Electronic measuring circuit comprising controlled power supply means for a resistive probe |
| 03/18/1992 | CN2099336U Automatic ac voltage stabilizer |
| 03/18/1992 | CN2099335U Ac load voltage compensator |
| 03/18/1992 | CN2099334U Automatic light adjuster for walking tractor |
| 03/18/1992 | CN1015949B Equipartition type power source |
| 03/17/1992 | US5097303 On-chip voltage regulator and semiconductor memory device using the same |
| 03/17/1992 | US5097199 Voltage controlled current source |
| 03/17/1992 | US5097198 Variable power supply with predetermined temperature coefficient |
| 03/12/1992 | DE4028348A1 DC source for control circuits - has superimposed system for maintaining low voltage from supply voltage pulsing cyclically between min. and max. |
| 03/11/1992 | EP0473925A2 Buck switching regulator with two control loops |
| 03/10/1992 | CA1297152C Contour-clamped homogeneous electric field generator |
| 03/05/1992 | WO1992003773A1 Process for symmetrical load distribution in power supply units connected in parallel on the output side |
| 03/05/1992 | WO1992003646A1 Process and device for driving an electromagnetic consumer |
| 03/04/1992 | EP0473138A2 Low power VCC/2 generator |
| 03/04/1992 | EP0472810A2 Device to regulate electrode current for electrolytic purposes |
| 03/04/1992 | CN1059215A Switch type dc stabilizer |
| 03/03/1992 | US5093654 Thin-film electroluminescent display power supply system for providing regulated write voltages |
| 03/03/1992 | US5093630 Overvoltage protection in series thyristor string for static var compensator |
| 03/03/1992 | US5093614 Three phase delta reference transformer |
| 03/03/1992 | US5093585 Current biasing for I2 L circuits |
| 02/27/1992 | DE4025718A1 Verfahren zur symmetrischen lastverteilung bei ausgangsseitig parallelgeschalteten stromversorgungsgeraeten A method for symmetrical load distribution at the output side parallel power supplies |
| 02/26/1992 | EP0472267A2 Optimized, 18-pulse type AC/DC, or DC/AC, converter system |
| 02/26/1992 | CN2097418U Power line cleaner |
| 02/26/1992 | CN1059055A Optimized 18-pulse type ac/dc, or dc/ac, converter system |
| 02/25/1992 | US5091816 Procedure and device for overload and short-circuit protection of output drivers |
| 02/25/1992 | CA1296396C Error amplifier for use with parallel operated autonomous current or voltage regulators using transconductance type power amplifiers |
| 02/25/1992 | CA1296386C Power converter control circuit |
| 02/20/1992 | DE4029794A1 Verfahren und einrichtung zur ansteuerung eines elektromagnetischen verbrauchers Method and device for activation of an electromagnetic consumer's |
| 02/19/1992 | EP0471215A1 Remote control of fluorescent lamp ballast |
| 02/19/1992 | CN2096775U Efficiency high-pow switch power using mosfet |
| 02/18/1992 | US5089768 Power source device with control of voltage change speed |
| 02/18/1992 | US5089767 Current sensor and limiter |
| 02/18/1992 | US5089765 Battery charger and charging method |
| 02/18/1992 | US5089764 Solar panel driven air purging apparatus for motor vehicles |
| 02/18/1992 | CA1296057C Low voltage control circuit |
| 02/13/1992 | DE4025035A1 Multi-phase current circuit for electric stepping motor - uses basic sawtooth voltage waveform for providing phase-shifted phase currents |
| 02/12/1992 | EP0470508A2 Method and arrngement for the automatic control of transistors |
| 02/12/1992 | CN2096082U Ac purifying program control voltage stabilizer |
| 02/12/1992 | CN1058527A Adaptive controller for operation cut with high-frequency electric scalpel |
| 02/11/1992 | US5088018 Overvoltage protection power supply circuit |
| 02/11/1992 | US5087872 Circulating load apparatus |
| 02/11/1992 | US5087870 Constant power circuit |
| 02/11/1992 | US5087834 Buffer circuit including comparison of voltage-shifted references |
| 02/11/1992 | US5087831 Voltage as a function of temperature stabilization circuit and method of operation |
| 02/11/1992 | CA1295675C Single mag amp control system for regulating bipolar voltage output of a power converter |
| 02/10/1992 | CA2044664A1 Switched multi-taped transformer power conversion method and apparatus |
| 02/05/1992 | EP0469589A2 Improvements in or relating to integrated circuits |
| 02/05/1992 | EP0469501A2 Power saving DC-DC converter for radio pagers |
| 02/04/1992 | US5086294 Indicator circuit for protecting light emitting diode |
| 02/04/1992 | US5085526 Compact programmable temperature detector apparatus |
| 01/28/1992 | US5084666 Switchable output voltage converter |
| 01/28/1992 | CA1295015C Dual input low drop out voltage regulator |
| 01/26/1992 | WO1992002073A1 Miniaturized switching power supply having unidirectional spike filter |
| 01/22/1992 | EP0467374A2 Control circuit for an invertor operable in an individual mode and an interconnection mode |
| 01/21/1992 | US5083078 Device for supplying power to an electronic computer in a motor vehicle |
| 01/21/1992 | US5083043 Voltage control circuit for a semiconductor apparatus capable of controlling an output voltage |
| 01/15/1992 | EP0465933A2 Common emitter amplifier operating from a multiplicity of power supplies |
| 01/15/1992 | EP0465903A1 Magnetic control method of energy transfer in a static converter |
| 01/15/1992 | EP0465507A1 Fault-powered power supply. |
| 01/15/1992 | EP0436627A4 Method and apparatus for controlling a power converter |
| 01/15/1992 | CN1057914A Thyristor voltage stabilized source |
| 01/15/1992 | CN1057913A Seriesly connected separately excited switching energy storaged voltage stabilized electric power supply |
| 01/14/1992 | US5081591 Optimizing reactive power distribution in an industrial power network |
| 01/14/1992 | CA1294328C Method and apparatus for minimizing the magnetizing current passing through a transformer |
| 01/14/1992 | CA1294310C Power control for cooking appliance with transient operating modes |
| 01/09/1992 | DE4113433A1 Linear regulated power supply for antenna measuring equipment - uses two=stage rectification and comparator maprator-limiter circuits to enable lightweight construction |
| 01/08/1992 | EP0464909A1 Integrated circuit with co-integrated power supply reduction |
| 01/08/1992 | CN2092778U Ac voltage stabilizer with high quality to cost ratio |
| 01/07/1992 | US5079688 Transformerless power monitor circuit having means for electronically latching dc alarms |
| 01/07/1992 | US5079686 Enhancement-mode zero-current switching converter |
| 01/07/1992 | US5079497 Circuit intended to supply a reference voltage |
| 01/07/1992 | US5079437 Multi-voltage power supply |
| 01/07/1992 | US5079410 Power control system adaptable to a plurality of supply voltages |
| 01/07/1992 | CA1293993C D.c. power monitor |
| 01/02/1992 | DE4019710A1 Energy source and load adaptor control method - involving iterative comparison of actual and pre-established source power levels until max. power point is attained |
| 01/01/1992 | CN2092119U Multifunctional automatic monitor for single-phase mains |
| 12/31/1991 | US5077518 Source voltage control circuit |
| 12/31/1991 | US5077488 Digital timing signal generator and voltage regulation circuit |
| 12/27/1991 | EP0462929A2 Method and apparatus of starting the automatic control of the operating current of a current source on switching-on the circuit |