| 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) |
|---|
| 12/27/1991 | EP0462483A2 Power supply circuit for a low-frequency amplifier |
| 12/27/1991 | EP0462314A2 Circuit arrangement to supply an earthed load with load independent current |
| 12/25/1991 | CN2091504U Fully automatic multi-functional voltage-adjusting protector |
| 12/25/1991 | CN2091472U Silicon controlled rectifier phase-shifting adjusting current regulator |
| 12/24/1991 | US5075617 Automatic line drop compensator |
| 12/24/1991 | CA1293532C Load-dependent current limit for the power supply of a multi-module electronic system |
| 12/18/1991 | EP0461788A2 Semiconductor integrated circuit device |
| 12/18/1991 | CN2091002U Adjustable low-power loss voltage stabilizer |
| 12/17/1991 | US5073848 Power distribution system |
| 12/17/1991 | CA1293295C Mosfet fullbridge switching regulator having transformer coupledmosfet drive circuit |
| 12/12/1991 | DE4117878A1 Miniature planar magnetic element e.g. induction coil or transformer - is formed by layers of insulating and magnetic material on either side of coil |
| 12/12/1991 | CA2025573A1 Method and system for controlling peak demand loads on electrical distribution networks |
| 12/11/1991 | EP0460453A2 Power production installation, especially propeller propulsion for ships using a solar generator |
| 12/11/1991 | CN2090171U Electrothermal warm kneepad for motorcycler |
| 12/10/1991 | US5072355 Ac-dc chopper converter type of supply |
| 12/10/1991 | US5072170 Reverse phase angle control of A.C. power loads |
| 12/10/1991 | US5072169 Radiation hardened power supplies for integrated circuits |
| 12/10/1991 | US5072134 Internal voltage converter in semiconductor integrated circuit |
| 12/04/1991 | CN1056758A High-reliability broad-limited purification alternating current regulated power supply |
| 12/03/1991 | US5070538 Wide band domino effect high voltage regulator |
| 12/03/1991 | US5070294 Multi-output dc-dc converter using field-effect transistor switched at high frequency |
| 12/03/1991 | US5070257 Circuitry for controlled rate of power application to CMOS microcircuits |
| 12/03/1991 | US5070255 Multi-level selecting circuit |
| 12/03/1991 | CA2063243A1 Energy-generating plant, particularly propellor-type ship's propulsion plant, supplied by a solar generator |
| 12/03/1991 | CA2043653A1 Energy-generating plant, particularly propeller-type ship's propulsion plant, supplied by a solar generator |
| 11/27/1991 | EP0458716A2 Power system with a voltage sensitive switching circuit |
| 11/27/1991 | EP0458659A2 Semiconductor integrated circuit device for supplying a bias current to DA converters |
| 11/27/1991 | CN1014946B Reactive power compensation apparatus with improved gate circuit |
| 11/26/1991 | US5068853 Fail-safe apparatus for image forming apparatus |
| 11/26/1991 | US5068593 Piece-wise current source whose output falls as control voltage rises |
| 11/21/1991 | EP0456990A2 Device to supply power to a computer system in a motor vehicle |
| 11/21/1991 | EP0456728A1 Power supply system. |
| 11/19/1991 | US5066901 Transient protected isolator output stage |
| 11/19/1991 | US5066896 Electric lighting and power controllers therefor |
| 11/14/1991 | DE4014534A1 Solar cell load regulator - has variable pulse control to maintain charge condition |
| 11/11/1991 | WO1991017492A1 Ac power conditioning circuit |
| 11/07/1991 | DE4014302A1 Variable DC supply for two pole appts. - has parallel sources with short circuit switches and series decoupling diodes allowing adjustment in stages |
| 11/06/1991 | EP0454667A1 Power control and line voltage monitor/compensator for resistance spot welding machines |
| 11/06/1991 | CN2088304U Power-economizing automatic controller for use in networks |
| 11/06/1991 | CN1056008A Multifunctional ac voltage-stabilized source |
| 11/05/1991 | US5063343 Current pump structure |
| 10/31/1991 | DE4012847A1 Integratable circuit with transistor stage - is controlled by operational amplifier in response to voltage drop at reference element |
| 10/30/1991 | EP0454243A1 Buffer circuit |
| 10/30/1991 | EP0454170A2 Step-down unit incorporated in large scale integrated circuit |
| 10/30/1991 | CN2087792U Energy-saving type overvoltage automatic demodulator |
| 10/29/1991 | US5061862 Reference voltage generating circuit |
| 10/23/1991 | EP0452981A2 Frequency limited resonant regulator |
| 10/23/1991 | CN2087358U Wide-range voltage-stabilised power source |
| 10/23/1991 | CN1055613A Stabilizing circuit for electron-emitted hot-cathode current |
| 10/22/1991 | US5060196 Circuit for adjusting voltage level of data output in a semiconductor memory device |
| 10/22/1991 | US5059890 Constant current source circuit |
| 10/22/1991 | US5059889 Parametric measurement unit/device power supply for semiconductor test system |
| 10/22/1991 | US5059888 Series voltage regulating circuit having a parallel stabilizer |
| 10/16/1991 | EP0452049A2 Thyristor switch gate pulse generator |
| 10/16/1991 | EP0451870A2 Reference voltage generating circuit |
| 10/16/1991 | CN2086916U D.c. power supply with chopping voltage regulation |
| 10/15/1991 | US5057747 Arc lamp stabilization |
| 10/09/1991 | EP0450830A2 Voltage reference having steep temperature coefficient and method of operation |
| 10/09/1991 | CN2086429U Noiseproof automatic alternating current manostat |
| 10/08/1991 | US5055766 Voltage regulator compensation in power distribution circuits |
| 10/08/1991 | US5054293 Apparatus and method for protecting a compressor in a heat pump |
| 10/02/1991 | EP0449567A2 Positive to negative voltage translator circuit and method of operation |
| 10/02/1991 | EP0449310A2 On-chip voltage regulator and semiconductor memory device using the same |
| 10/02/1991 | CN1055073A Auto-transformer type a.c. voltage stabilizing device |
| 10/01/1991 | US5053604 Process and device for control of electrical resistors, particularly for an industrial furnace |
| 10/01/1991 | CA1290014C Ferroresonant three-phase constant ac voltage transformer |
| 09/26/1991 | DE4009078A1 Current regulator supplying remote load - uses bridging diodes to protect sense resistors from full load voltage in event of load line failure |
| 09/25/1991 | EP0448026A2 Power supply. |
| 09/25/1991 | EP0447833A2 Low noise dac current source topology |
| 09/25/1991 | EP0447637A2 Power supply control circuit |
| 09/25/1991 | EP0447422A1 A linkage system for loading machines. |
| 09/25/1991 | CN2085577U Electric power full-automatic reactive smooth compensating complete set of arrangement |
| 09/25/1991 | CN2085534U Mini-ac potentiostat |
| 09/24/1991 | US5051683 Reactive power controller without initial abrupt disturbance on power source |
| 09/18/1991 | EP0446595A2 A buffer circuit |
| 09/17/1991 | US5050185 Process and apparatus for measuring the instability of an arc in an electrical arc furnace for processing liquid metal |
| 09/17/1991 | US5049805 Voltage sensitive switch |
| 09/17/1991 | US5049764 Active bypass for inhibiting high-frequency supply voltage variations in integrated circuits |
| 09/17/1991 | CA1289183C Power regulator, in particular for airport lighting |
| 09/11/1991 | EP0314681B1 Final stage of a bridge circuit |
| 09/11/1991 | CN2084628U Simple solar battery power tracer |
| 09/11/1991 | CN1013902B Microcomputer-controlled large-power ac current regulator |
| 09/10/1991 | US5047751 Power supply voltage monitoring circuit |
| 09/10/1991 | US5047707 Voltage regulator and method for submicron CMOS circuits |
| 09/10/1991 | US5047706 Constant current-constant voltage circuit |
| 09/10/1991 | CA1288811C Ac power control |
| 09/04/1991 | EP0444792A2 Automat supply voltage switching circuit |
| 09/04/1991 | CN2084247U Phase controlling type reactive power automatic compensator |
| 09/04/1991 | CN2084212U Dynamic balance switch type dc regulated power supply |
| 09/04/1991 | CN2084211U Transformer with electronic voltage regulating |
| 09/03/1991 | US5045774 Full scale AC or DC power attenuator |
| 09/03/1991 | US5045771 Method and circuit for preventing transients from damaging a switching regulator |
| 09/03/1991 | US5045770 Shunt regulator for use with resonant input source |
| 08/29/1991 | DE4005815A1 Current limiting device for electronically switched load - uses voltage drop across measuring resistance to control switching transistor |
| 08/28/1991 | EP0443342A1 Method for controlling the energy transfer in a static converter, static energy converter for carrying out such method and electric power supply using such converter |
| 08/28/1991 | CN2083803U Intelligent reactive co automatic compensation device |
| 08/28/1991 | CN2083766U Welding current attenuation controlling device |
| 08/27/1991 | US5043652 Differential voltage to differential current conversion circuit having linear output |
| 08/27/1991 | US5043633 Circuit and method for regulating the current flow in a distributorless ignition system coil |
| 08/27/1991 | CA1288134C Voltage regulator |