| 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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| 05/31/1994 | US5317254 Bipolar power supply |
| 05/31/1994 | US5317116 Pulse welding apparatus |
| 05/25/1994 | EP0598557A1 Downhole instrument power supply system |
| 05/25/1994 | EP0598390A1 Variable RF power splitter |
| 05/25/1994 | EP0598271A1 High-frequency power unit for neon tubes |
| 05/25/1994 | CN2166549Y Double-protecting essential safety power source apparatus |
| 05/25/1994 | CN2166541Y Apparatus for releasing voltage reduction & overvoltage of incandescent lamp |
| 05/25/1994 | CN2166476Y Sectional automatic pressure-regulating apparatus |
| 05/25/1994 | CN1087211A Current-regulation type reactive static compensator for automatic constant voltage source |
| 05/25/1994 | CN1087185A Special power supply method for voltage regulator circuit |
| 05/18/1994 | EP0597352A2 Electronic ignition system for internal combustion engines with differentiated load supply system |
| 05/18/1994 | CN2165471Y Regulated power supply for radar |
| 05/13/1994 | CA2102958A1 Downhole instrument power supply system using shunt voltage regulation |
| 05/11/1994 | WO1994010745A1 Harmonic controller for an active power line conditioner |
| 05/11/1994 | WO1994010744A1 Active power line conditioner with synchronous transformation control |
| 05/11/1994 | WO1994010743A1 Load current fundamental filter with one cycle response |
| 05/11/1994 | WO1994010622A1 Load programmable output buffer |
| 05/11/1994 | WO1994003850A3 Bootstrapped current and voltage reference circuit utilizing an n-type negative resistance device |
| 05/11/1994 | EP0596228A1 Oscillatorless substrate bias generator |
| 05/11/1994 | DE4242989C1 Longitudinal voltage regulator using regulation loop - uses sensor in starting circuit for initiating starting phase to bring regulation into normal operating range |
| 05/11/1994 | CN2164569Y Energy-saving dc voltage stabilizing power |
| 05/11/1994 | CN1086615A Modular power factor correcting method and apparatus for any load |
| 05/11/1994 | CA2147257A1 Active power line conditioner with synchronous transformation control |
| 05/11/1994 | CA2146987A1 Load current fundamental filter with one cycle response |
| 05/11/1994 | CA2146761A1 Harmonic controller for an active power line conditioner |
| 05/10/1994 | US5311084 Integrated circuit buffer with controlled rise/fall time |
| 05/05/1994 | DE4332452A1 Semiconductor storage system with supply voltage junction receiving supply voltage - has boosting system for producing boost signal on boost line with level higher than supply voltage and terminal system has levels for setting voltage on boost line |
| 05/04/1994 | EP0595620A1 Switching circuit |
| 05/04/1994 | EP0594833A1 Vernier control system for subsynchronous resonance mitigation. |
| 05/04/1994 | CN2164063Y Brightness-increasing manostat for illuminating lights of motorcycles |
| 05/03/1994 | US5309082 Hybrid linear-switching power supply |
| 05/03/1994 | US5308965 Display device for an industrial console module |
| 04/28/1994 | WO1994009415A1 Method and apparatus for controlling a current generator |
| 04/27/1994 | EP0594162A1 Wide range power supply for integrated circuits |
| 04/27/1994 | CN2162973Y Power output safety controller for microwave machine |
| 04/26/1994 | US5307257 Transformerless power-supply unit for supplying a low DC voltage |
| 04/26/1994 | US5307003 Varying the supply voltage in response to the current supplied to a computer system |
| 04/26/1994 | US5306894 Consumable electrode type D.C. arc welder |
| 04/21/1994 | DE4308838C1 Series-controller for satellite tele-command signals system - has coupling circuit maintaining controller in control state even after end of turn-on signal from turn-on device. |
| 04/21/1994 | DE4235274A1 Setting-up and operating controllable and non-controllable electrical equipment e.g. lighting - entering facts contg. measured and stored sequence of instantaneous power input values and corresp. energy consumption values and calculating weighting matrix |
| 04/20/1994 | EP0592804A1 Device for current stabilised control of a plurality of actuators by means of a control computer |
| 04/20/1994 | CN1024308C Voltage reference circuit |
| 04/19/1994 | US5305259 Power source voltage tracking circuit for stabilization of bit lines |
| 04/19/1994 | US5305242 AC power supply apparatus and load current measurement method in AC power supply apparatus |
| 04/19/1994 | US5304918 Reference circuit for high speed integrated circuits |
| 04/19/1994 | US5304858 Apparatus for maintaining a low power loss within an input stage for digital signals |
| 04/14/1994 | DE4334386A1 Overcurrent protection for power semiconductor module - includes current detection electrode, transmitting detector signal w.r.t. main current flow over main current path |
| 04/14/1994 | DE4333767A1 Stabilised voltage generating circuit with comparator - adjusts current magnitude flowing from voltage supply mode to output mode in response to voltage comparison |
| 04/14/1994 | DE4233826A1 Low-loss voltage stabiliser - has MOSFET with two operational amplifiers, one in voltage control circuit and one in current control circuit |
| 04/13/1994 | EP0591915A2 Device for limiting inrush current in switching power supplies |
| 04/13/1994 | CN2161949Y Wide voltage fully automatic AC manostat |
| 04/13/1994 | CN2161948Y Energy-saving protective type low voltage AC manostat |
| 04/13/1994 | CN2161947Y Dovetail hinge |
| 04/12/1994 | US5303110 Insulated-gate controlled semiconductor device |
| 04/12/1994 | US5302888 CMOS integrated mid-supply voltage generator |
| 04/12/1994 | US5302857 Portable power adapter |
| 04/06/1994 | EP0590764A1 Direct-current stabilizer |
| 04/06/1994 | EP0590304A2 Method for the pilot control of a switched power supply for the compensation of variations of the distribution voltage |
| 04/06/1994 | EP0590223A1 Method and device to recover energy in driving inductive loads |
| 04/06/1994 | CN2160937Y Multi-stage compensated ac electric power stabilizer |
| 04/06/1994 | CN2160936Y AC cleaning regulated power supply |
| 04/05/1994 | US5300823 Internal voltage dropping circuit for semiconductor device |
| 03/31/1994 | WO1994007195A1 Fast response current regulator for dc power supply |
| 03/30/1994 | CN1084656A DC power supply |
| 03/29/1994 | US5298851 Multiple application voltage regulator system and method |
| 03/24/1994 | DE4231571A1 Integratable shunt regulator suitable for voltage control - has two transistors of one type and three of the opposite type providing control input for load |
| 03/24/1994 | DE4231389A1 Variable control current supply circuit contg. two current paths - produces subsidiary control signal for variation of current in one path to steepen slopes of output current waveform. |
| 03/23/1994 | EP0588469A1 Personal computer with SCSI bus power control |
| 03/23/1994 | EP0588005A1 Pilot light interface for small industrial controls |
| 03/23/1994 | CN2159627Y Power factor self compensating controller |
| 03/23/1994 | CN1084293A Switching reglated power supply having semi-voltage wide range rectification |
| 03/22/1994 | US5296800 Regulated power supply circuit |
| 03/22/1994 | CA2032084C Transformerless power monitor circuit having means for electronically latching dc alarms |
| 03/22/1994 | CA1327990C Electric lighting and power controllers therefor |
| 03/17/1994 | WO1994006200A1 Rectifier circuit |
| 03/17/1994 | WO1994006191A1 Power controller device |
| 03/17/1994 | WO1994006145A1 Inductive load dump circuit |
| 03/17/1994 | DE4230727A1 Linear inverter for power supply to sensitive measuring appts. - employs multiplying D=A converter for sync. adaptation of control voltage to maintain output within tolerances |
| 03/17/1994 | DE4230350A1 Gleichrichterschaltung Rectifier circuit |
| 03/17/1994 | CA2130351A1 Power controller device |
| 03/16/1994 | EP0587509A1 Voltage-current converter circuit |
| 03/16/1994 | CN2159077Y Multifunction household power regulating and controlling device |
| 03/16/1994 | CN1083946A Alternative current voltage-regulating and stabilizing device |
| 03/16/1994 | CN1083945A 理想的电压控制器 Ideal voltage controller |
| 03/15/1994 | US5295145 Power supply with multi-parameter control |
| 03/10/1994 | DE4229891A1 Passive integrated circuit giving two output DC voltages from single AC input - has rectifier, voltage limiter, smoothing circuit and two output stages integrated within unit without need of transformer |
| 03/09/1994 | CN2158549Y High-efficiency ac regulated power supply |
| 03/08/1994 | US5293447 Photovoltaic solar water heating system |
| 03/03/1994 | DE4228480A1 DC supply stage for communications appts. - includes LC filter using triode circuit acting as impedance to reduce energy loss |
| 03/02/1994 | EP0584656A1 Improved switched mode power supply |
| 03/02/1994 | CN2158107Y Current zeropassage switching over digital alternating-current manostat |
| 03/01/1994 | US5291365 Power supply with overvoltage protection circuit |
| 03/01/1994 | US5291123 Precision reference current generator |
| 03/01/1994 | US5291121 Rail splitting virtual ground generator for single supply systems |
| 03/01/1994 | US5289998 Spacecraft |
| 02/23/1994 | EP0583502A1 Circuit arrangement for the generation of a constant output voltage |
| 02/23/1994 | CN2157540Y AC voltage regulator capable of bypassing during no interruption of current |
| 02/23/1994 | CN2157539Y Indoor full supply type domestic voltage regulator |
| 02/23/1994 | CN2157538Y No instantaneous current interruption domestic ac regulated power supply |
| 02/23/1994 | CN2157537Y Numerically-controlled regulated power supply |