| 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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| 07/23/1992 | DE4101492A1 Power current circuitry e.g. for DC motor - uses controllable resistor in branch circuit to detect load current regulated in output stage |
| 07/23/1992 | DE4101253A1 Controlling optimal solar generator working point during battery charging - generating additional voltage when generator maximum efficiency point and battery operating point diverge |
| 07/22/1992 | CN2110954U Universal regulated power supply with positive-and-negative symmetry output |
| 07/21/1992 | US5132893 Voltage supply circuit |
| 07/21/1992 | US5132565 Semiconductor integrated circuit including voltage level shifting |
| 07/21/1992 | US5132555 Semiconductor integrated circuit |
| 07/15/1992 | CN2110245U Integral integrated logic power apparatus |
| 07/14/1992 | US5130636 Protective circuit for providing a reference voltage at a backplane |
| 07/14/1992 | US5130635 Voltage regulator having bias current control circuit |
| 07/14/1992 | US5130582 Delay circuit which is free from temperature variation, power supply voltage variation and process variation |
| 07/14/1992 | CA1305215C Three-phase converter |
| 07/08/1992 | EP0282577B1 Energy management system |
| 07/08/1992 | CN2109598U One-piece linear integrated regulated power supply device |
| 07/08/1992 | CN1062607A High accuracy regulated power supply module with short-current cut-off protection at fixed positive and negative voltages |
| 07/07/1992 | US5128602 Parallel supply for multiple loads from a single power supply |
| 07/02/1992 | DE4138923A1 Controlling weld current pulsed wave shape during resistance welding of can bodies - includes DC rectifier and switch unit to enable current generation from input voltage |
| 07/01/1992 | EP0492375A1 Voltage/current characteristics control circuit particularly for protecting power transistors |
| 07/01/1992 | EP0492117A2 Current source with adjustable temperature variation |
| 07/01/1992 | CN2108955U Popularized digital dc voltage stabilizing power supply |
| 06/30/1992 | US5126930 Switched mode power supply controller having a stand-by state using a frequency divided burst mode |
| 06/30/1992 | CA1304448C Power factor improving arrangement |
| 06/30/1992 | CA1304446C Parallel power systems |
| 06/25/1992 | DE4040841A1 Circuit producing DC feed voltage for at least one load - delivers DC voltage essentially between two terminals with at least one user fed across converter system contg. inductance and switch in series |
| 06/25/1992 | CA2056502A1 Ac to dc converter having an enhanced power factor |
| 06/24/1992 | CN2108377U Voltage regulator |
| 06/23/1992 | US5124628 Gate pulse generator of a reactive power compensation device |
| 06/23/1992 | US5124616 Circuit for driving a load and for producing a signal indicative of the condition of the load |
| 06/23/1992 | CA1304125C Peripheral device power activation circuit and method therefor |
| 06/23/1992 | CA1304122C Motor controller with optical scr's |
| 06/17/1992 | EP0490880A2 Negative feedback power supply apparatus |
| 06/17/1992 | EP0490432A1 Power-supply arrangement |
| 06/17/1992 | EP0489936A1 Method to detect amplitude and offset variations in two electrical sinusoidal signals 90 degrees out of phase and also circuitry to implement this method and the use of this method in a control system |
| 06/16/1992 | US5122730 Voltage divider for a wide band domino effect high voltage regulator |
| 06/16/1992 | US5122729 Power supply device including induction voltage detection coil for charging portable electronic devices |
| 06/16/1992 | US5122727 Electric power supply system with distribution of output |
| 06/16/1992 | US5122726 Overvoltage protection for redundant power supplies |
| 06/16/1992 | US5122725 Negative feedback power supply apparatus |
| 06/16/1992 | US5122634 Welding transformer control apparatus |
| 06/16/1992 | CA1303718C Multiple time delay power controller apparatus with time delay turn-on and turn-off |
| 06/16/1992 | CA1303694C Ferroresonant constant ac voltage transformer |
| 06/16/1992 | CA1303675C Current source for a variable load with an inductive component |
| 06/16/1992 | CA1303674C High frequency power generator |
| 06/10/1992 | EP0489462A2 Improved system for triac trigger control in combination with a sensing element |
| 06/10/1992 | CN1061864A Reference voltage generating circuit of semiconductor memory device |
| 06/09/1992 | US5121049 Voltage reference having steep temperature coefficient and method of operation |
| 06/09/1992 | US5121007 Step-down unit incorporated in large scale integrated circuit |
| 06/03/1992 | EP0348447B1 Process and device for preventing interference of transients in a buck cell |
| 06/03/1992 | CN2106389U Voltage-stabilizing protector of communication equipment for ship |
| 06/03/1992 | CN2106388U Microcomputer power energy-saving meter |
| 06/02/1992 | US5119015 Stabilized constant-voltage circuit having impedance reduction circuit |
| 06/02/1992 | US5119014 Sequential power-up circuit |
| 06/02/1992 | US5119012 AC power regulator with tap changer |
| 05/30/1992 | WO1992009943A1 Solid state current controlled interruption system |
| 05/29/1992 | WO1992009024A1 Voltage regulator |
| 05/27/1992 | EP0486875A2 Power supply controlled to supply load current formed as sine wave |
| 05/27/1992 | CN2105718U Wood safety power source |
| 05/27/1992 | CN2105717U Domestic multi-function ac voltage regulator |
| 05/26/1992 | US5117176 Alternating current conditioner |
| 05/26/1992 | US5117175 Remote bias voltage setting LTC control system |
| 05/26/1992 | US5117174 Electric power system with line drop compensation |
| 05/26/1992 | CA1301839C Apparatus and method for balancing electrical currents in a multiple-phase system |
| 05/26/1992 | CA1301835C Method and an apparatus for boosting battery |
| 05/21/1992 | DE4201273A1 Regulating electric current between DC and AC voltage sources - using at least one rectifier or inverter depending on active and reactive current desired values and specified frequency |
| 05/20/1992 | CN1061292A High-efficiency universal voltage-stabilizing and current-stubilizing source module (plate) |
| 05/13/1992 | EP0485119A2 Circuit for driving a load and for producing a signal indicative of the condition of the load |
| 05/13/1992 | EP0484360A1 Electrical switching circuit. |
| 05/12/1992 | US5113337 High power factor power supply |
| 05/12/1992 | US5113089 Current sensing circuit |
| 05/12/1992 | US5113085 Circuit arrangement for supplying a load |
| 05/07/1992 | DE4113117C1 Resistance welding using pulse-modulated AC - chopping each half wave in prim. circuit of transformer more than once |
| 05/06/1992 | EP0483852A2 Power source circuit |
| 05/06/1992 | EP0483486A2 Three phase delta reference transformer |
| 05/06/1992 | EP0483246A1 Combined bias supply and power shut-off circuit. |
| 05/06/1992 | EP0483214A1 Power supply and oscillator for a computer system providing automatic selection of supply voltage and frequency. |
| 05/06/1992 | CN1060937A Arrangement for acquiring energy |
| 05/06/1992 | CN1016549B Dynamic current control method of crystal shutter tube shunt |
| 05/05/1992 | US5111065 Diode driver circuit utilizing discrete-value DC current source |
| 04/30/1992 | WO1992007315A1 Device for establishing a current in an analogue part of an integrated logic and analogue circuit |
| 04/29/1992 | EP0482536A2 Switchable output voltage converter |
| 04/29/1992 | EP0482361A2 Method for the parallel regulation of step transformers |
| 04/29/1992 | CN2103162U Improved experimental teaching power supply |
| 04/29/1992 | CN2103161U Energy-saving protective wide voltage a. c. regulate power supply |
| 04/29/1992 | CN1060723A Power factory monitoring method and device |
| 04/28/1992 | US5109185 Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage |
| 04/23/1992 | DE4030494C1 Solar power generator setter - has indicator in centre of concentric circles calibrated in ambient temperatures |
| 04/23/1992 | CA2028212A1 Flicker compensating apparatus for dc arc furnace |
| 04/22/1992 | EP0481967A2 Temperature compensation circuit and time delay generatof including the same |
| 04/22/1992 | EP0481353A2 High power power supply |
| 04/22/1992 | EP0481277A2 Current source |
| 04/21/1992 | US5107224 Wideband single-ended voltage-to-current converter and gain-control circuit |
| 04/21/1992 | US5107199 Temperature compensated resistive circuit |
| 04/16/1992 | WO1992006537A1 Low voltage non-saturating logic circuit technology |
| 04/16/1992 | DE4032569A1 Photovoltaic system coupled to mains network - has individual modules incorporating respective DC-AC converter for direct supply of mains network |
| 04/16/1992 | DE4023846A1 Load management circuit for washing machine and drum dryer - permits simultaneous operation of two appliances with one power supply line |
| 04/15/1992 | EP0480517A2 A temperature responsive circuit |
| 04/15/1992 | EP0480475A1 Code setting circuit |
| 04/15/1992 | EP0211881B1 A.c. power supply systems |
| 04/15/1992 | CN2101940U Reactive power compensating controller for current fluctuation |
| 04/15/1992 | CN1060372A Efficient energy-saving resonance-type ac motor |
| 04/14/1992 | US5105327 Ac power conditioning circuit |