Patents
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)
04/2006
04/11/2006CA2202516C Active power down for pc card i/o applications
04/06/2006WO2006035394A1 A controller
04/06/2006US20060071706 Device and method for voltage regulator with low standby current
04/06/2006US20060071705 Bandgap reference circuit for ultra-low current applications
04/06/2006US20060071704 Amplifying circuit
04/06/2006US20060071650 CPU power delivery system
04/06/2006US20060071649 Apparatus and method for multi-phase transformers
04/06/2006US20060071648 Power management integrated circuit
04/06/2006DE102005045695A1 Internal voltage generator in integrated circuit, selects one of reference voltages generated based on external voltage and internal voltage, for controlling internal voltage generation
04/06/2006DE102005044348A1 Power factor correction circuit for compensating distortion of input current in switching mode power supply device, controls duration of turn-on interval of switch in response to voltage induced in secondary winding
04/06/2006DE102004052865A1 Control of freely-oscillating converter switch of power supply unit, takes place during different operating states when given degrees of primary coil magnetization are reached
04/06/2006CA2581875A1 Voltage regulator
04/05/2006EP1472582A4 Power regulator employing a sinusoidal reference
04/05/2006EP0803085B1 Electrical apparatus
04/05/2006CN1757152A Power circuit and method of rising output voltage of power circuit
04/05/2006CN1757005A Improved method of detecting switching power supply output current
04/05/2006CN1755570A Method of controlling photovoltaic power generation system
04/05/2006CN1755569A Voltage supply circuit and drive circuit device and method
04/05/2006CN1755568A Voltage stabilizer circuit
04/05/2006CN1755567A Voltage control apparatus using display device and control method thereof
04/05/2006CN1249903C Control apparatus of voltage converter
04/05/2006CN1249558C Vehicular electronic controller
04/04/2006US7023711 Power supply circuit and electronic apparatus
04/04/2006US7023681 Solid-state relay
04/04/2006US7023675 Power supply for measuring the line impedance of underground cable
04/04/2006US7023262 Negative voltage generator for a semiconductor memory device
04/04/2006US7023261 Current switching for maintaining a constant internal voltage
04/04/2006US7023260 Charge pump circuit incorporating corresponding parallel charge pump stages and method therefor
04/04/2006US7023193 Elimination of potential transformer in ANSI Type A voltage regulator
04/04/2006US7023192 Output regulator system and method
04/04/2006US7023191 Voltage regulator with adjustable output impedance
04/04/2006US7023190 ADC transfer function providing improved dynamic regulation in a switched mode power supply
04/04/2006US7023189 Voltage regulator circuit of integrated circuit chip
04/04/2006US7023188 Method of forming a multi-phase power supply controller
04/04/2006US7023186 Two stage boost converter topology
04/04/2006US7023185 Power supply for controlled parallel charging and discharging of batteries
04/04/2006US7023184 DC-DC converter with stabilized output voltage
04/04/2006US7023183 Power supply with capacitive mains isolation
04/04/2006US7023182 Activating a phase in a multiphase DC/DC converter without disturbing the output voltage
04/04/2006US7023181 Constant voltage generator and electronic equipment using the same
04/04/2006US7023148 Power feedback power factor correction high frequency inverter
04/04/2006US7023147 Controller circuit
04/04/2006US7023004 Multi-mode electromagnetic radiation emitting device
03/2006
03/30/2006WO2006034237A1 Digital pulse width modulated controller
03/30/2006US20060066391 Semiconductor integrated circuit device
03/30/2006US20060066390 Analog circuit for calculating square and reciprocal of a current
03/30/2006US20060066389 Variable gain charge pump controller
03/30/2006US20060066288 Feedback circuit for power switching circuit
03/30/2006DE4143674B4 Schaltungsanordnung zur Steuerung des Nachlaufs eines Steuergeräts in einem Kraftfahrzeug Circuit arrangement for controlling the lag of a control device in a motor vehicle
03/30/2006DE102004046688A1 Vorrichtung und Verfahren zum Metall-Schutzgas (MSG)-Lichtbogenschweißen Apparatus and method for gas metal arc (GMA) -Lichtbogenschweißen
03/30/2006DE102004044746A1 Ohmic characteristic producing circuit for nonlinear load at low voltages, e.g. for railway signaling, has rectifier, power factor controller, and measuring resistance
03/29/2006EP1641109A1 A switched mode power supply
03/29/2006EP1639684A2 Energy storage system
03/29/2006EP1639419A1 A circuit for detecting electric current
03/29/2006EP1590879A4 Power factor correction circuit
03/29/2006CN2768299Y Switching type control device
03/29/2006CN2768276Y Stabilized voltage output circuit for chargeable battery
03/29/2006CN2768058Y Routinization linear voltage regulating circuit
03/29/2006CN1754137A Constant voltage power supply
03/29/2006CN1753291A Power factor correction circuit and output voltage control method thereof
03/29/2006CN1753098A Internal power voltage generator for reducing current consumption
03/29/2006CN1752883A Stationary reactive compensator monitoring system up position machine software layout method and graphic interface structure
03/29/2006CN1248246C Magnetic controlled current or voltage regulator and transformer
03/28/2006USRE39036 Universal power-supply connection system for multiple electronic devices, and devices for use therewith
03/28/2006US7019987 Inverter
03/28/2006US7019585 Method and circuit for adjusting a reference voltage signal
03/28/2006US7019584 Output stages for high current low noise bandgap reference circuit implementations
03/28/2006US7019583 Current inrush limiting circuit
03/28/2006US7019507 Methods and circuits for programmable current limit protection
03/28/2006US7019506 Charge-based switching power converter controller
03/28/2006US7019505 Digital controller for a power converter employing selectable phases of a clock signal
03/28/2006US7019504 Constant ON-time controller for a buck converter
03/28/2006US7019503 Active power filter with input voltage feedforward, output load feedforward, and output voltage feedforward
03/28/2006US7019502 Synchronization of multiphase synthetic ripple voltage regulator
03/28/2006US7019501 DC/DC converter
03/28/2006US7019500 Pulse width modulation power regulator and power supply system thereof
03/28/2006US7019499 Low noise fast stable voltage regulator circuit
03/28/2006US7019498 Power factor correction circuit
03/28/2006US7019497 Circuits and methods for synchronizing non-constant frequency switching regulators with a phase locked loop
03/28/2006US7019495 Inter-regulator control of multiple electric power sources
03/28/2006US7019468 Electronic ballast with ignition and operation control
03/28/2006US7019465 Discharge lamp illumination circuit and discharge lamp illumination method
03/23/2006WO2006031903A2 Switching power supply control
03/23/2006US20060061413 Voltage reference generator with flexible control of voltage
03/23/2006US20060061412 High precision, curvature compensated bandgap reference circuit with programmable gain
03/23/2006US20060061411 High voltage generator circuit with ripple stabilization function
03/23/2006US20060061410 Charge pump circuit
03/23/2006US20060061344 Control mode discrimination circuit for automotive generator voltage regulator
03/23/2006US20060061343 Controller for DC to DC converter
03/23/2006US20060061342 Actuation circuit for a switch regulating the power consumption in a switching converter
03/23/2006US20060061341 Over-current detection circuit in a switch regulator
03/23/2006US20060061340 Temperature compensation device and method for a voltage regulator
03/23/2006US20060061339 Temperature regulator for a multiphase voltage regulator
03/23/2006US20060061338 Power supply with capacitive mains isolation
03/23/2006US20060061337 Power factor correction circuit
03/23/2006DE202005016316U1 Electronically regulated load circuit used in testing e.g. current supplies, has automatic control loop connected in parallel to control components and current sensors, and parallelly switched to set control components in desired value
03/23/2006DE19741464B4 Temperaturstabilisierte Arbeitsstromregelung Temperature stabilized shunt regulation
03/23/2006DE102005044325A1 Power factor correction circuit for switching mode power supply, has switching controller generating reference voltage when input AC voltage is applied to input terminal and controlling switch based on reference and AC voltages
03/23/2006DE102004036958A1 Ansteuerung von Leistungsschaltern Control of circuit breakers
03/23/2006DE102004036522A1 Ansteuerschaltung für einen Schalter in einem Schaltwandler zur Verbesserung der Sprungantwort A drive circuit for a switch in a switching converter for improving the step response