| 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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| 02/22/1994 | US5289364 Power supply for an electronic device |
| 02/22/1994 | US5289361 Adaptive boost switching preregulator and method |
| 02/22/1994 | US5289112 Light-emitting diode array current power supply including switched cascode transistors |
| 02/22/1994 | US5289110 Input current responsive, tap changing transformer system |
| 02/22/1994 | US5289109 Current limit circuit |
| 02/22/1994 | US5289044 Electronic system switchable between its primary circuit and standby circuit |
| 02/17/1994 | WO1994003850A2 Bootstrapped current and voltage reference circuit utilizing an n-type negative resistance device |
| 02/17/1994 | DE4226530A1 Power supply circuit for e.g. remote control applications - has energy store comprising two capacitors switchable in parallel or in series |
| 02/16/1994 | EP0582813A2 Critically continuous boost converter |
| 02/16/1994 | EP0582801A1 Circuit for voltage regulation |
| 02/16/1994 | CN2156533Y Communication power supply with voltage stabilizing selfchanging current circuit |
| 02/16/1994 | CN1082213A Sefe antiexplosion DC power supply |
| 02/10/1994 | DE4235048A1 Mains connection unit for supplying DC voltage to audio equipment |
| 02/10/1994 | DE4225691A1 Max. output power controller for transformers and motors - includes A=D converters, computer and controller responsive to temp.-dependent resistive voltage divider wired to hot spot on component surface |
| 02/09/1994 | EP0582263A1 Regulated power supply for DC voltage |
| 02/08/1994 | US5285367 Linear load circuit to control switching power supplies under minimum load conditions |
| 02/08/1994 | US5285148 Current-regulating circuit having parallel control paths |
| 02/02/1994 | EP0581300A2 Stepping motor control system |
| 02/02/1994 | EP0580921A1 Control of saturation of integrated bipolar transistors |
| 02/02/1994 | CN2155095Y Power factor automatic compensator |
| 02/02/1994 | CN2155037Y Multipurpose voltage-stabilizing constant-source |
| 02/02/1994 | CN1081545A Load sensitive variable voltage motor controller |
| 02/02/1994 | CN1081521A Method and device for keeping ac electricity at constant current and constant voltage |
| 02/02/1994 | CN1081380A Electronic medicine permeation apparatus |
| 02/02/1994 | CN1023668C Bidirectional dc power controller with fault protection |
| 02/01/1994 | US5283762 Semiconductor device containing voltage converting circuit and operating method thereof |
| 02/01/1994 | US5283728 In a voltage control system for an alternating current power supply |
| 02/01/1994 | US5283516 Low voltage dimmer with no load protection |
| 02/01/1994 | US5283514 Fast response current regulator for DC power supply |
| 02/01/1994 | US5283441 Low-power current mirror having feedback with optical isolation |
| 02/01/1994 | CA2010004C Impedance matching circuit |
| 01/29/1994 | CA2109667A1 Harmonic cancellation system |
| 01/27/1994 | DE4221608C1 DC voltage converter suppressor - has active suppressor filter fitted between supply connections and input connections of converter and incorporates linear regulator transistor |
| 01/26/1994 | EP0580217A1 Electronic switching-on apparatus and a switching-on method |
| 01/26/1994 | EP0579962A1 Choke coil |
| 01/25/1994 | US5281866 Reference voltage circuit allowing fast power up from low power standby condition |
| 01/25/1994 | CA1326514C Automatic electrical power control circuit |
| 01/20/1994 | WO1994001921A1 Dc-to-dc converter |
| 01/20/1994 | WO1994001909A1 Current limiters in power utility applications |
| 01/20/1994 | DE4318995A1 Ballast for LV halogen or Mercury@ discharge lamp - has energising transformer with core without air gap and two coil groups |
| 01/20/1994 | DE4223338A1 Overload protection circuit for regulator setting element |
| 01/19/1994 | EP0578958A1 Overload protection circuit |
| 01/19/1994 | EP0340292B1 Power supply system for segmented loads |
| 01/19/1994 | CN2153826Y High pressure low loss intelligent time-delay ac manostat |
| 01/18/1994 | US5280455 Voltage supply circuit for use in an integrated circuit |
| 01/18/1994 | US5280235 Fixed voltage virtual ground generator for single supply analog systems |
| 01/18/1994 | US5280233 Low-drop voltage regulator |
| 01/13/1994 | DE4241066C1 Automatische Laststromrückregelung Automatic load current feedback control |
| 01/12/1994 | CN2153087Y Multifunctional large-power high-voltage electrostatic source apparatus |
| 01/12/1994 | CN2153086Y Ac voltage regulator |
| 01/12/1994 | CN1080788A Power supply circuit with standby arrangement |
| 01/11/1994 | US5278492 Controllable AC power supply for an ozonator |
| 01/06/1994 | WO1994000965A1 A power controller, for example a dimmer for electric lamps |
| 01/06/1994 | WO1994000807A1 Load sensitive variable voltage motor controller |
| 01/06/1994 | WO1994000806A1 Voltage controller for appliances and inductive loads |
| 01/06/1994 | CA2137366A1 Ideal voltage controller |
| 01/06/1994 | CA2137365A1 Load sensitive variable voltage motor controller |
| 01/05/1994 | EP0576772A1 Programmable-output voltage regulator |
| 01/05/1994 | DE4224243C1 Load monitoring and cut=out circuitry - detects voltage drop across measuring resistor to control variable resistance in series with current load |
| 01/05/1994 | CN2152235Y High quality-value ratio new switch power supply |
| 01/05/1994 | CN2152234Y Automatic voltage regulating controller with secondary time setting |
| 01/04/1994 | US5276646 High voltage generating circuit for a semiconductor memory circuit |
| 12/29/1993 | EP0576204A1 Integrated circuit buffer with controlled rise and fall times |
| 12/29/1993 | EP0575589A1 Controlled power supply |
| 12/29/1993 | CN2151573Y Small size DC resource with charging function |
| 12/29/1993 | CN2151492Y Microcomputer reactive self compensating controller |
| 12/28/1993 | US5274323 Control circuit for low dropout regulator |
| 12/21/1993 | US5272393 Voltage converter of semiconductor device |
| 12/21/1993 | US5272314 Consumable electrode type d.c. arc welder |
| 12/15/1993 | EP0483246A4 Combined bias supply and power shut-off circuit |
| 12/15/1993 | CN2149653Y Automatic compensation type ac regulated power supply |
| 12/15/1993 | CN1079559A Tracking run/standby power supplies |
| 12/14/1993 | US5270636 Regulating control circuit for photovoltaic source employing switches, energy storage, and pulse width modulation controller |
| 12/14/1993 | US5270581 Semiconductor integrated circuit device having step-down circuit associated with component circuits arranged in low-power consumption manner |
| 12/09/1993 | DE4218093A1 Voltage selecting circuit for model railway - allows two stabilised preselectable DC voltages to be adjusted by potentiometers with relays or switches for switching between voltages |
| 12/08/1993 | EP0572690A1 Voltage supply from control outputs |
| 12/08/1993 | EP0572567A1 Phase-controlled power modulation system |
| 12/08/1993 | CN2148978Y Power output stabilizing device for adjustable temperature blowing machine |
| 12/08/1993 | CN1023036C Voltage regulator circuit for free voltage |
| 12/07/1993 | US5268832 DC/AC inverter controller for solar cell, including maximum power point tracking function |
| 12/07/1993 | US5268831 Method and apparatus for initiating the automatic regulation of a power supply |
| 12/07/1993 | US5268631 Power control system with improved phase control |
| 12/07/1993 | US5268593 Switching power source circuit |
| 12/01/1993 | CN2148350Y Compensation ac voltage regulator |
| 11/30/1993 | US5267137 High-power power supply |
| 11/30/1993 | US5267136 DC-DC converter having parallel converter circuits |
| 11/30/1993 | US5267135 Power supply apparatus having interlocking operating system |
| 11/30/1993 | US5266887 Bidirectional voltage to current converter |
| 11/30/1993 | US5266884 Threshold controlled circuit with ensured hysteresis precedence |
| 11/30/1993 | US5266838 Power supply system including power sharing control arrangement |
| 11/25/1993 | WO1993023910A1 Vernier control system for subsynchronous resonance mitigation |
| 11/24/1993 | EP0570839A2 Voltage drop compensating and current harmonics reducing circuit on the feed lines |
| 11/24/1993 | EP0570767A2 Circuit arrangement for the power supply to at least one load |
| 11/24/1993 | EP0317609B1 Switching ac voltage regulator |
| 11/24/1993 | CN2147680Y Miniature generator with regulated power supply |
| 11/24/1993 | CN2147577Y Wide rang full-automatic step type voltage adjustable power supply |
| 11/24/1993 | CN2147576Y Regulated power supply with automatic adjusting and protecting function |
| 11/23/1993 | US5265161 Process and device for activating a chip card |
| 11/23/1993 | US5265001 Power supply circuit with switching frequency of saturable ferrite transformer controlled by class A amplifier |
| 11/23/1993 | US5264785 Voltage-controlled resistance element with superior dynamic range |