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

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)
12/2004
12/21/2004	US6833691 System and method for providing digital pulse width modulation
12/21/2004	US6833690 Thermally compensated current sensing of intrinsic power converter elements
12/21/2004	US6833689 Method for reducing the cost of voltage regulation circuitry in switch mode power supplies
12/16/2004	WO2004109888A2 System to control integrated circuit resonance
12/16/2004	WO2004109886A2 Energizing capacitor loads
12/16/2004	US20040252474 Integrated circuit stack with lead frames
12/16/2004	US20040252422 Selective potting for controlled failure and electronic devices employing the same
12/16/2004	US20040251957 Internal voltage generator
12/16/2004	US20040251954 Flexibility of use of a data processing apparatus
12/16/2004	US20040251950 Switch in bipolar technology
12/16/2004	CA2528061A1 Energy savings device and method for a resistive and/or an inductive load and/or a capacitive load
12/15/2004	EP1486846A1 Switch in bipolar technology
12/15/2004	EP1486844A2 Electronic control device comprising a transistor with a tap connection
12/15/2004	EP0813705B1 High precision voltage regulation circuit for programming multilevel flash memory
12/15/2004	CN1555600A Thermally compensated current sensing of intrinsic power converter elements
12/15/2004	CN1554993A Voltage stabilizing stepdown power saver
12/15/2004	CN1554992A Automatic voltage stabilizing regulation power source with variable far end load
12/15/2004	CN1180527C Power supply source for photoelectricity type current transformer
12/15/2004	CN1180328C Control method of electronic power source voltage stabilizer and its apparatus
12/15/2004	CN1180327C Voltage reference source provided circuit
12/14/2004	US6831818 Current regulated voltage limited high voltage power supply for corona charger
12/14/2004	US6831502 Internal power-source potential supply circuit, step-up potential generating system, output potential supply circuit, and semiconductor memory
12/14/2004	US6831447 Surge limiting circuit with optional short circuit detection
12/14/2004	US6831378 Semiconductor integrated circuit device and contactless electronic device
12/09/2004	US20040246636 Regulator protection circuit and power supply apparatus incorporating it
12/09/2004	US20040246045 Voltage and time control circuits and methods of operating the same
12/09/2004	US20040246041 Feedback control system and method
12/09/2004	US20040245979 Semiconductor integrated circuit
12/09/2004	US20040245978 Method for generating an output voltage
12/09/2004	US20040245971 System to control integrated circuit resonance
12/09/2004	US20040245967 Maximum power follow-up control apparatus
12/09/2004	US20040245963 Feedback system to control integrated circuit resonance
12/09/2004	DE202004015975U1 Rectifier circuit for suppressing the propagation of electrical interference, e.g. for use in backlit LC display, has isolation unit for separating driver and control units so that they are isolated on either side of a transformer
12/09/2004	DE19918041B4 Schaltnetzteil und Verfahren zur Ansteuerung eines Schalters in einem Schaltnetzteil Switching power supply and method for driving a switch in a switching power supply
12/09/2004	DE102004010317A1 Robuste Stromregelvorrichtug für ein Servosystem Stromregelvorrichtug robust for a servo system
12/08/2004	CN2662529Y A positively exciting constant current source
12/08/2004	CN2662330Y CMOS circuit power supply controller making microprocessor reset reliably
12/08/2004	CN1553567A Energy gap reference circuit
12/08/2004	CN1553290A Low-noise rapid stabilizing stabilized circuit
12/08/2004	CN1179476C Switch power source and method for controlling one switch in switch power source
12/08/2004	CN1179259C Voltage generating circuit capable of stable supplying voltage without over-rated-voltage for power supply
12/07/2004	US6828848 Integrated circuit device capable of optimizing operating performance according to consumed power
12/07/2004	US6828834 Power-on management for voltage down-converter
12/07/2004	US6828832 Voltage to current converter circuit
12/07/2004	US6828763 Voltage regulator
12/07/2004	CA2304882C Power distribution network incorporating a voltage support transformer and process of use
12/07/2004	CA2252774C Switched-mode power supply arrangement
12/02/2004	US20040240890 Methods and apparatus for controlling devices in a networked lighting system
12/02/2004	US20040240309 On die voltage regulator
12/02/2004	US20040240233 Electronic circuit control element with tap element
12/02/2004	US20040239414 Constant-voltage circuit
12/02/2004	US20040239304 Threshold voltage adjustment for MOS devices
12/02/2004	US20040239301 Power system
12/02/2004	US20040239300 Energy saving discontinuous mode system and method
12/02/2004	US20040239296 Controlled frequency power factor correction circuit and method
12/02/2004	US20040238875 Semiconductor device less susceptible to viariation in threshold voltage
12/02/2004	DE10317300A1 Power consumption reducing circuit, for electronic devices in standby mode, periodically receives device specific signal and automatically determines operating mode
12/01/2004	EP1025745B1 Energy saving lighting controller
12/01/2004	CN1550949A Regulator protection circuit and power supply device comprising same
12/01/2004	CN1550948A 半导体集成电路 The semiconductor integrated circuit
12/01/2004	CN1178117C Amplifier for amplifying input signal
11/2004
11/30/2004	US6825711 Power reduction by stage in integrated circuit
11/30/2004	US6825643 Power converter module with an electromagnetically coupled inductor for switch control of a rectifier
11/25/2004	WO2004102781A1 Ac voltage control apparatus
11/25/2004	WO2004086456A3 Low power implementation for input signals of integrated circuits
11/25/2004	US20040233728 Chalcogenide glass constant current device, and its method of fabrication and operation
11/25/2004	US20040233601 Method of supplying power to low supply voltage power consumers
11/25/2004	US20040233144 Method and apparatus for driving leds
11/25/2004	US20040232976 Temperature-independent current source circuit
11/25/2004	US20040232903 L-D snubber for different type PFC circuit
11/25/2004	US20040232898 Power converter
11/25/2004	US20040232896 Power supply apparatus providing medium voltage direct current
11/25/2004	US20040232895 Low noise fast stable voltage regulator circuit
11/25/2004	US20040232894 Hybrid AC / DC system for electric power transmission
11/25/2004	DE10357754A1 System und Verfahren zur gemeinschaftlichen Verwendung von Leistung für batteriebetriebene Steuerungs- und Anwendungsmodule System and process for the joint use of power for battery powered controller and application modules
11/25/2004	DE10318523A1 Terminating voltage setting method for integrated circuit input stage for maximum reception reliability, involves using control signal dependent on comparing reception signal level(s) with assessment voltage
11/25/2004	DE10297504T5 Schnittstellenschaltung für 4-20 MA An interface circuit for 4-20 MA
11/25/2004	DE102004014386A1 Spannungsgeneratorschaltung und zugehöriges Verfahren zur Spannungserzeugung Voltage generator circuit and associated method for generating voltage
11/24/2004	CN2658803Y Regulated power supply for fire power-off protector
11/24/2004	CN1549076A Input power controller
11/23/2004	USRE38657 Current limitation programmable circuit for smart power actuators
11/23/2004	US6822428 Stabilized power supply unit having a current limiting function
11/18/2004	WO2004100344A2 Method and apparatus for tracking maximum power point for inverters in photovoltaic applications
11/18/2004	US20040227566 Semiconductor device
11/18/2004	US20040227498 Switching power supply circuit and overcurrent protection method for the switching power supply circuit
11/18/2004	US20040227497 Power supply apparatus
11/18/2004	US20040227495 Method and phase redundant regulator apparatus for implementing redundancy at a phase level
11/18/2004	US20040227477 Differential current output unit
11/18/2004	US20040227405 Power supply circuit including stably operating voltage regulators
11/17/2004	EP1275195B1 On chip current source
11/17/2004	CN2657260Y Indoor dc power supply unit
11/17/2004	CN2657060Y Adjustable voltage-stabilized source with automatic protective function
11/16/2004	US6819165 Voltage regulator with dynamically boosted bias current
11/16/2004	US6819164 Apparatus and method for a precision bi-directional trim scheme
11/16/2004	US6819091 Switching power supply apparatus with over-temperature protection
11/16/2004	US6819090 Line voltage regulator with RMS voltage approximation feedback control
11/16/2004	CA2309444C High side circuitry triac
11/11/2004	WO2004098037A1 Continuos current converter
11/11/2004	WO2004098036A1 Power supply controller
11/10/2004	CN1545757A Thermal compensation method and device for circuits with temperature-dependent current sensing elements

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