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)
03/2005
03/30/2005EP1220071B1 Semiconductor device
03/29/2005US6873204 Compact DC stabilized power supply capable of suppressing fluctuation of output voltage in spite of abrupt fluctuation of load current
03/29/2005CA2273324C A power control apparatus for lighting systems
03/24/2005WO2005027330A1 Electronic generator
03/24/2005US20050063206 Multipurpose transforming device
03/24/2005US20050063194 Vehicle lighting methods and apparatus
03/24/2005US20050062694 Display device
03/24/2005US20050062522 Reference voltage generator for hysteresis circuit
03/24/2005US20050062519 Time base circuit, oscillator based thereon, and communicating apparatus using said oscillator
03/24/2005US20050062507 System and method to adjust voltage
03/24/2005US20050062440 Systems and methods for controlling illumination sources
03/23/2005CN1599220A Supply unit and electronic equipment comprising the supply unit
03/23/2005CN1598732A Energy-saving AC voltage-stabilized source
03/23/2005CN1598731A Energy-saving precision purification AC voltage-stabilized source
03/22/2005US6870778 Semiconductor device including a voltage monitoring circuit
03/22/2005US6870352 Thermally compensated current sensing of intrinsic power converter elements
03/22/2005US6870351 Voltage regulator circuit and integrated circuit device including the same
03/17/2005WO2005024539A1 Power controller
03/17/2005WO2005024538A1 Circuit voltage regulation
03/17/2005WO2005001591A8 Reactive power optimization with adaptive excitation control
03/17/2005US20050059359 Antenna detection and diagnostic system and related method
03/17/2005US20050057952 Method for preventing regulated supply undershoot in state retained latches of a leakage controlled system using a low drop out regulator
03/17/2005US20050057875 Programmable system to dynamically control the DC current through a load circuit and/or the DC voltage across a load circuit
03/17/2005US20050057301 Semiconductor device and electronic apparatus capable of detecting open wire using weak current
03/17/2005US20050057300 Semiconductor integrated circuit device
03/17/2005US20050057237 Power factor controller
03/17/2005US20050057236 Dual stage voltage regulation circuit
03/17/2005US20050057235 Operation voltage supply apparatus and operation voltage supply method for semiconductor device
03/17/2005US20050057234 Low drop-out voltage regulator and an adaptive frequency compensation method for the same
03/17/2005US20050057233 Current control circuit, semiconductor device and image pickup device
03/17/2005US20050057232 Power converter circuit and method for power conversion
03/17/2005US20050057231 Power supply circuit, display driver, and voltage supply method
03/17/2005US20050057230 Providing Optimal Supply Voltage to Integrated Circuits
03/17/2005US20050057170 Low-visual noise, jitterized pulse width modulation brightness control circuit
03/16/2005EP1514737A2 Power supply for vehicles
03/16/2005EP1514163A2 Multimode voltage regulator
03/16/2005EP1466224A4 Electronic ballast with ignition and operation control
03/16/2005EP1459282A4 Electronic ballast with low voltage output
03/16/2005EP1196926B1 Voltage production circuit
03/16/2005CN2686271Y Lamplight control power economizer
03/16/2005CN1596501A Dual input ac/dc/battery operated power supply
03/16/2005CN1596474A Circuit for generating a reference voltage having low temperature dependency
03/16/2005CN1595779A Multiple-output power device, and mobile device using the same
03/16/2005CN1595762A A telephone set power supply management circuit
03/16/2005CN1595651A Semiconductor device and electronic apparatus capable of detecting open wire using weak current
03/16/2005CN1193483C Method and device for generating driving power supply
03/16/2005CN1193283C Current-limiting protection circuit for voltage stabilizer
03/15/2005US6867955 ARC discharge protection apparatus
03/15/2005US6867641 Internal voltage generator for semiconductor device
03/15/2005US6867633 Complementary electronic system for lowering electric power consumption
03/15/2005US6867573 Temperature calibrated over-current protection circuit for linear voltage regulators
03/15/2005US6867572 Regulator and related method capable of performing pre-charging
03/15/2005CA2303845C Energy saving lighting controller
03/15/2005CA2152711C Wall transformer
03/10/2005WO2005022284A1 Power supply apparatus and electronic device having the same
03/10/2005WO2005022283A1 A constant-voltage circuit
03/10/2005US20050055585 Method for regulating the power supply of a number of multiple field devices
03/10/2005US20050052172 Maximum power sensor for photovoltaic system
03/10/2005US20050052171 Multiple-output power device, and mobile device using the same
03/10/2005US20050052169 Energy storage system
03/10/2005US20050052168 Switching power supply device and semiconductor integrated circuit
03/10/2005DE202004016174U1 Switch-mode power supply, has pulse-width modulator and phase regulator combined into unit for controlling actuator for switching primary winding current of transformer
03/09/2005EP1459605A4 Electronic ballast with rail voltage switching
03/09/2005CN1592078A Current controlling circuit, semiconductor device and camera device
03/09/2005CN1592058A Difference sum dc-dc converter and method thereof
03/09/2005CN1592057A DC-DC converter with load transient response fast reaction and method thereof
03/09/2005CN1591534A Power supply circuit for vacuum fluorescent display
03/09/2005CN1591266A Power supply device having efficient low power standby mode
03/09/2005CN1591262A Voltage reference circuit
03/08/2005US6865093 Electronic circuit control element with tap element
03/03/2005WO2005020418A1 Protection circuit for a power supply unit, and power supply unit with a respective protection circuit
03/03/2005WO2005020286A2 Active oring controller for redundant power systems
03/03/2005US20050047132 Systems and methods for color changing device and enclosure
03/03/2005US20050046467 Circuit voltage regulation
03/03/2005US20050046466 Bandgap reference circuit
03/03/2005US20050046405 Reconfigurable topology for switching and linear voltage regulators
03/03/2005US20050046403 Power supply circuit
03/03/2005US20050046402 Power supply circuit for vacuum fluorescent display
03/03/2005US20050046400 Controlling operation of a voltage supply according to the activity of a multi-core integrated circuit component or of multiple IC components
03/03/2005US20050046399 Power supply having efficient low power standby mode
03/03/2005US20050046396 Inter-regulator control of multiple electric power sources
03/03/2005US20050044617 Methods and apparatus for illumination of liquids
03/03/2005DE10336425A1 Appliance for generating operational low voltage (LV) for electronic component modules, with voltage cyclically alternating compared at capacitor with two threshold values, derived from reference voltage
03/03/2005DE102004037383A1 Energieversorgungsschaltkreis und integrierte Halbleiterschaltkreisvorrichtung Power supply circuit and semiconductor integrated circuit device
03/02/2005EP1511151A2 Inter-regulator control of multiple electric power sources
03/02/2005EP1510897A1 Noise filter circuit
03/02/2005CN1588774A Low power semiconductor laser driving power
03/02/2005CN1588748A Distributive continuous reactive generator
03/02/2005CN1191669C 高压稳压电路 High voltage regulator circuit
03/01/2005US6861832 Threshold voltage adjustment for MOS devices
03/01/2005US6861831 Voltage regulator
03/01/2005US6861829 Apparatus and methods for regulated voltage
03/01/2005US6861827 Low drop-out voltage regulator and an adaptive frequency compensation
03/01/2005US6861825 Hybrid AC/DC system for electric power transmission
02/2005
02/24/2005WO2005017902A1 Area efficient charge pump
02/24/2005US20050041161 Systems and methods for digital entertainment
02/24/2005US20050040883 Semiconductor integrated circuit device
02/24/2005US20050040864 Apparatus and method for detecting loss of high-speed signal
02/24/2005US20050040843 Superconducting constant current source
02/24/2005US20050040807 Power management unit for use in portable applications
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