| 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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| 11/23/1993 | US5264783 Contactless magnet-activated proportional controller |
| 11/23/1993 | US5264781 Current control/power limiter circuit |
| 11/23/1993 | US5264761 Data link switching system |
| 11/18/1993 | EP0569557A1 Phase-shifting transformer system |
| 11/17/1993 | CN2146801Y Electric equipment protector |
| 11/17/1993 | CN1022786C Self-adapting compensating-in-place method and apparatus thereof |
| 11/16/1993 | US5262712 Power supply selectively providing series and parallel regulation |
| 11/16/1993 | US5262705 IC device for drive control of small hard disk drive unit |
| 11/11/1993 | WO1993022717A1 Motor driven step switch |
| 11/11/1993 | DE4214431A1 Motorantrieb für Stufenschalter Motor drive for tap changers |
| 11/10/1993 | EP0569165A2 Power supply circuit |
| 11/10/1993 | CN2146028Y Dual-circuit d.c power source |
| 11/10/1993 | CN2146027Y Microcomputerized timing protection automatic voltage stabilizing controller |
| 11/10/1993 | CN2146026Y Civil contact a.c automatic voltage regulator |
| 11/10/1993 | CN2146025Y Digital-controlled relay shifting a.c voltage stabilizing device |
| 11/09/1993 | US5260644 For reducing AC coupling |
| 11/09/1993 | US5260643 Programmable reference voltage generator |
| 11/03/1993 | EP0568130A1 A method for regulating the voltage at the delivery points in a network for distributing electric energy |
| 11/03/1993 | EP0567683A1 Device for determining the excitation voltage amplitude of a resolver |
| 11/03/1993 | EP0514381B1 Frequency response-compensated circuit |
| 11/02/1993 | US5258714 For replicating a load-driving output current |
| 11/02/1993 | US5258701 DC power supply |
| 11/02/1993 | US5258653 Power efficient voltage to current coverter |
| 10/30/1993 | CA2095162A1 Method for regulating the voltage at the delivery points in a network for distributing electric energy |
| 10/28/1993 | WO1993021572A1 Electrical current source circuitry for a bus |
| 10/28/1993 | WO1993021571A1 Process and device for balancing a control apparatus fitted with a microcomputer |
| 10/28/1993 | DE4213136A1 Verfahren und Vorrichtung zum Abgleich eines mit einem Mikrorechner versehenen Steuergeräts Method and apparatus for calibration of a microcomputer provided with a control device |
| 10/26/1993 | US5257156 Turn-on transient overcurrent response suppressor |
| 10/26/1993 | US5257039 Non-impact printhead and driver circuit for use therewith |
| 10/26/1993 | US5256957 Process and circuit versions for charging accumulators |
| 10/26/1993 | US5256905 Method and circuit for sequentially connecting plural loads to an a.c. voltage without damaging the low voltage control circuitry therefor |
| 10/26/1993 | US5256882 Signal transmission circuit having a latch-up function |
| 10/20/1993 | EP0566160A1 Bridge type measuring device with output compensating circuit |
| 10/20/1993 | CN2144369Y Voltage regulator for permanent-magnet generator |
| 10/20/1993 | CN2144322Y Automatic ac loading voltage regulator |
| 10/20/1993 | CN1077572A Tree network complex voltage control device |
| 10/19/1993 | US5255177 High-voltage power source control device |
| 10/19/1993 | US5255176 Control circuit for an inverter operable in an individual mode and an interconnection mode |
| 10/19/1993 | US5254938 Resistor circuit with reduced temperature coefficient of resistance |
| 10/19/1993 | US5254937 Power supply control device having memory tables for providing a stabilized output |
| 10/19/1993 | US5254883 Electrical current source circuitry for a bus |
| 10/19/1993 | US5254880 Large scale integrated circuit having low internal operating voltage |
| 10/19/1993 | US5254878 Voltage regulated power supply providing a constant output voltage |
| 10/14/1993 | WO1993020497A1 Control system and method for the parallel operation of voltage regulators |
| 10/14/1993 | DE4305850A1 Reference voltage generator e.g. for DRAM integrated circuit - has constant current source and negative feedback circuit with resistors and second FET in series between amplifier output and feed potential |
| 10/14/1993 | DE4243205A1 Photovoltaic current feeder for AC network - has inverter with time-discrete proportionally differential control for input voltage |
| 10/13/1993 | CN2143793Y 稳压控制变压器 Regulator control transformer |
| 10/12/1993 | US5252909 Constant-voltage generating circuit |
| 10/12/1993 | US5252908 Apparatus and method for temperature-compensating Zener diodes having either positive or negative temperature coefficients |
| 10/06/1993 | EP0564280A2 Circuit for generating an internal source voltage |
| 10/06/1993 | EP0564225A2 Voltage generation circuits and methods |
| 10/06/1993 | EP0564071A1 Reference voltage source |
| 10/06/1993 | EP0563790A2 Method for operating several thyristor controllers in parallel |
| 10/06/1993 | EP0563765A2 Circuit for producing an electrical voltage reference value depending on an electrical control voltage |
| 10/06/1993 | CN1077065A Apparatus for chang of electric power |
| 10/06/1993 | CN1077048A Circuit for generating an internal source voltage |
| 09/30/1993 | WO1993019535A1 Reference generator |
| 09/29/1993 | EP0562985A1 Power variation method in a load connected to the network |
| 09/29/1993 | EP0562916A1 Device for generating reference voltages |
| 09/29/1993 | EP0562738A2 Microphone power supply |
| 09/29/1993 | CN2142981Y Alternating-current electronic voltage stabilizer |
| 09/29/1993 | CN2142980Y Current-stabilized output power-supply for electric checking |
| 09/29/1993 | CN1076792A Control and drive circuit of high performance cost switch power supply |
| 09/28/1993 | US5249226 Apparatus for controlling a current supply device |
| 09/28/1993 | US5249155 Semiconductor device incorporating internal voltage down converting circuit |
| 09/28/1993 | CA1322576C Multiple output power supply |
| 09/22/1993 | EP0561624A2 Multi-voltage control circuit of tree branch network |
| 09/21/1993 | US5247704 Burst mode transmitter/receiver unit |
| 09/21/1993 | US5247241 Frequency and capacitor based constant current source |
| 09/21/1993 | US5247240 Miniaturized switching power supply with circuit for unidirectional suppression of leading spike |
| 09/16/1993 | WO1993017791A1 Variable inductance current limiting reactor control system for electrostatic precipitator |
| 09/15/1993 | EP0560666A2 DC voltage divider |
| 09/15/1993 | EP0560536A2 Method and apparatus for load voltage compensation |
| 09/15/1993 | EP0560527A1 Isolated current mirror |
| 09/15/1993 | CN2142212Y Superwide range alternating-current regulated power supply |
| 09/14/1993 | US5245546 Welding arc length control system |
| 09/14/1993 | US5245526 Below ground current sensing with current input to control threshold |
| 09/14/1993 | US5245523 Power delivery circuit with current detection |
| 09/14/1993 | US5245522 Power supply controlled to supply load current formed as sine wave |
| 09/14/1993 | US5245510 Hybrid integrated circuit device |
| 09/14/1993 | US5245272 Electronic control for series circuits |
| 09/14/1993 | US5245218 Electric circuit for stabilizing the transfer impedance of an integrated circuit |
| 09/14/1993 | CA2091371A1 Isolated current mirror |
| 09/08/1993 | EP0559336A2 Apparatus for controlling a current supply device |
| 09/08/1993 | EP0558532A1 Voltage regulator |
| 09/08/1993 | EP0258314B1 Scheme for rapid adjustment of network impedance |
| 09/07/1993 | US5243554 Writable analog reference voltage storage device |
| 09/07/1993 | US5243271 Voltage stabilized power supply with capacitor isolation during supply voltage variations |
| 09/07/1993 | CA1322023C Power transistor drive circuit with improved short circuit protection |
| 09/07/1993 | CA1322022C Device enabling the restoration of the mains current in the event of a breakdown of one or more elements of a series connection |
| 09/06/1993 | CA2090501A1 Current control/power limited circuit |
| 09/01/1993 | EP0558409A1 Device for generating an electric voltage having a predetermined waveform and iontophoretic transermal drug delivery apparatus, equipped with such a device |
| 09/01/1993 | EP0557739A1 A thermally dependent self-modifying voltage source |
| 09/01/1993 | CN2141576Y Continuous adjstable dc regulated power supply |
| 09/01/1993 | CN2141575Y Independent welding controller for thin sheet |
| 08/31/1993 | US5241261 Thermally dependent self-modifying voltage source |
| 08/31/1993 | US5241227 Active high band weighting circuit of noise reduction circuit |
| 08/25/1993 | EP0556663A1 Below ground current sensing with current input to control threshold |
| 08/25/1993 | EP0556583A1 Device for a galvanic separated DC supply of a micro-computer from an AC source |
| 08/25/1993 | CN2141094Y Digital-display precision purifying ac regulated power supply |