Patents
Sitemap › G05 - Controlling; Regulating › G05F - Systems for regulating electric or magnetic variables › 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)
09/2008
09/03/2008CN100416443C Formula based programmable voltage wattless automatic control device
09/03/2008CN100416442C Adaptive duty ratio regulator
09/03/2008CN100416441C Stabilizator and power supply with shunt control
09/03/2008CN100416440C Ballast control with power factor correction
09/02/2008US7420828 Induction heating apparatus
09/02/2008US7420827 Self oscillating inrush current limiting converter
09/02/2008US7420359 Bandgap curvature correction and post-package trim implemented therewith
09/02/2008US7420358 Internal voltage generating apparatus adaptive to temperature change
09/02/2008US7420357 Hysteretic DC/DC converter
09/02/2008US7420356 Current direction detection circuit and switching regulator having the same
09/02/2008US7420355 DC-DC converter with over-voltage protection
09/02/2008US7420354 Method and apparatus for controlling power drawn from an energy converter
08/2008
08/28/2008WO2008103838A1 Programmable fractional charge pump for dc-dc converter
08/28/2008WO2008103465A1 Battery charger with constant-current to constant-voltage transition
08/28/2008WO2008102583A1 Semiconductor device
08/28/2008WO2008102552A1 Power conversion device
08/28/2008WO2008102551A1 3-phase power conversion device
08/28/2008WO2008102542A1 Power generating device and method for operating the same
08/28/2008WO2008101902A1 Voltage limiter and protection for a photovoltaic module
08/28/2008WO2008013871A9 Pre-bias protection circuit for converter
08/28/2008WO2008008353A3 Digital pwm controller
08/28/2008WO2007130481A3 Voltage synthesis using virtual quadrature sources
08/28/2008US20080205134 Charge pump to supply voltage bands
08/28/2008US20080205103 Power factor control systems and methods
08/28/2008US20080204856 Methods and circuits for distributing power to spd loads
08/28/2008US20080204125 Internal voltage generator
08/28/2008US20080204124 Fine-Grained Power Management of Synchronous and Asynchronous Datapath Circuits
08/28/2008US20080204123 Semiconductor device
08/28/2008US20080203991 DC-DC Converter that Includes a High Frequency Power MESFET Gate Drive Circuit
08/28/2008US20080203990 Switching regulator
08/28/2008US20080203989 Voltage Converter Apparatus and Method Therfor
08/28/2008US20080203988 Adder and current mode switching regulator
08/28/2008US20080203987 Reference voltage generator having improved setup voltage characteristics and method of controlling the same
08/28/2008US20080203986 Boosting Switching regulator
08/28/2008US20080203985 Dc-dc voltage converter
08/28/2008US20080203984 Step-up switching power supply device, and electronic device provided therewith
08/28/2008US20080203983 Voltage regulator with leakage current compensation
08/28/2008US20080203982 Power supply system for motherboard
08/28/2008US20080203981 Semiconductor device structure and semiconductor device incorporating same
08/28/2008US20080203980 Programmable voltage divider
08/28/2008US20080203979 Customer Intelligent Reactive Power Automatic Compensation Energy-Saved Device
08/28/2008US20080203961 Motor driving apparatus
08/28/2008US20080203934 Method and Circuit for Enabling Dimming Using Triac Dimmer
08/28/2008US20080203816 Power supply apparatus
08/28/2008DE4411805B4 Stromsteller Power Plate
08/28/2008DE102007008402A1 Solar module's operating point adjusting device, has direct current/direct current converter provided with input and output which changes input voltage in response to control signal for adjusting operating point of solar module
08/27/2008EP1961278A1 A universal dimmer
08/27/2008EP1633030B1 Generator system
08/27/2008CN201107680Y Adjustable current source apparatus using load suspending to control circuit
08/27/2008CN201107679Y Micro computer controlled domestic electricity saving means
08/27/2008CN201107678Y Improved constitution of alternating current voltage stabilizer
08/27/2008CN101253461A Single stage inverter device, and related controlling method, for converters of power from energy sources, in particular photovoltaic sources
08/27/2008CN101251763A Mainboard with overpressure and overfrequency
08/27/2008CN100414718C Circuit for realizing large negative of APD bias voltage
08/27/2008CN100414478C A method and a system for powering an integrated circuit, and an integrated circuit especially designed to be used therein
08/27/2008CN100414470C Stationary reactive compensator monitoring system up position machine software layout method and graphic interface structure
08/27/2008CN100414469C Circuit for speeding up stabilizing low voltage difference linear stabilizer output voltage
08/26/2008US7417838 Semiconductor integrated circuit
08/26/2008US7417494 Internal voltage generator
08/26/2008US7417493 Voltage generator in a flash memory device
08/26/2008US7417491 Constant current output charge pump
08/26/2008US7417490 Internal voltage generator of semiconductor integrated circuit
08/26/2008US7417489 Semiconductor integrated circuit having controller controlling the change rate of power voltage
08/26/2008US7417415 Voltage-controlled current source
08/26/2008US7417414 Semiconductor device provided with feedback circuit including resistive element and capacitive element
08/26/2008US7417413 Ripple converter
08/26/2008US7417412 DC-DC converter utilizing a modified Schmitt trigger circuit and method of modulating a pulse width
08/26/2008US7417411 Apparatus and method for monitoring tap positions of load tap changer
08/26/2008US7417409 Power losses reduction in switching power converters
08/21/2008WO2008101068A1 Regulator with automatic power output device detection
08/21/2008WO2008099558A1 Power supply circuit, charging unit having the power supply circuit, and power supply method
08/21/2008WO2007025051A3 Feed-forward circuit for adjustable output voltage controller circuits
08/21/2008US20080197915 Semiconductor device chip, semiconductor device system, and method
08/21/2008US20080197913 Energy efficient voltage detection circuit and method therefor
08/21/2008US20080197910 Input processing circuit and switch input circuit using the same
08/21/2008US20080197828 Switching regulator
08/21/2008US20080197827 Reverse Current Comparator Circuit and Method for Switching Regulators
08/21/2008US20080197826 Switching power supply controller with transient gain change
08/21/2008US20080197825 Uniform converter input voltage distribution power system
08/21/2008US20080197824 Adaptive firing order control for dynamic current balance of multiphase voltage regulators
08/21/2008US20080197823 Converter circuit
08/21/2008US20080197822 Variable Gain Amplifier and Ac Power Supply Device Using the Same
08/21/2008US20080197821 Dc-dc conversion circuit, dc-dc conversion control circuit, and dc-dc conversion control method
08/21/2008US20080197819 Method and apparatus for electronic power control
08/21/2008US20080197818 Switching converter having an activatable and deactivatable damping circuit
08/21/2008US20080197817 Control arrangement for a pfc power converter
08/20/2008EP1959328A1 Regulator circuit and car provided with the same
08/20/2008EP1959327A1 Regulator circuit and car provided with the same
08/20/2008EP1497815B1 Focus voltage amplifier
08/20/2008CN201101814Y Constant-current source of internal interposition therapeutic equipment for atrium
08/20/2008CN101248705A Heating power supply device
08/20/2008CN101247689A Digital lamp control method and system
08/20/2008CN101247093A Monocycle control method and implementing circuit of grid inverter
08/20/2008CN101247092A Switching controller for parallel power supply
08/20/2008CN101247091A Linear electric power with low output ripple voltage
08/20/2008CN101247089A Switching controller for power sharing of parallel power supplies
08/20/2008CN101247053A Battery-connected voltage-boosting and reducing converting circuit and device, DC back-up power device
08/20/2008CN101246734A Bias voltage generator and method generating bias voltage for semiconductor memory device
08/20/2008CN101246377A Solar maximum efficiency tracking circuit based on CVT method
08/20/2008CN101246376A Series regulator
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