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)
10/2004
10/06/2004CN1535098A Illuminator and lighting head for the same and power supply device
10/06/2004CN1170358C Electric-shock and short-circuit preventing multifunctional contact-less voltage stabilizer
10/06/2004CN1170356C Voltage output terminal direct paralleled current equalizing power supply circuit
10/05/2004US6801470 Digital regulation circuit
10/05/2004US6801420 Selective potting for controlled failure and electronic devices employing the same
10/05/2004US6801419 Overcurrent protection circuit for voltage regulator
10/05/2004US6801060 Semiconductor integrated circuit
10/05/2004US6801033 Voltage converter having switching element with variable substrate potential
10/05/2004US6801022 Universal electrical energy saver
09/2004
09/30/2004WO2004084395A1 Inverter
09/30/2004WO2004042910A3 Electric motor control system including position determination and error correction
09/30/2004US20040189272 Switching power supply controller and switching power supply
09/30/2004US20040189268 Power converter module with an electromagnetically coupled inductor for switch control of a rectifier
09/30/2004DE102004010394A1 Strom-Controller für induktive Last Current controller for inductive load
09/30/2004DE10127054B4 Verfahren zur Überwachung einer Spannungsversorgung eines Steuergeräts in einem Kraftfahrzeug Method for monitoring a voltage supply of a control device in a motor vehicle
09/29/2004EP1463190A1 Reliable board mounted power module
09/29/2004EP1461864A2 Selective potting for controlled failure and electronic devices employing the same
09/29/2004CN1533524A Automatic power factor correction system
09/29/2004CN1533024A Votage limit type protective circuit for permanent generator voltage stabilizer
09/29/2004CN1533023A Controller for inductive load current
09/29/2004CN1532658A Energy gap reference voltage reference circuit and method of producing reference votage
09/29/2004CN1169282C Electroplating current supply system
09/28/2004US6798289 System, apparatus and method for voltage to current conversion
09/28/2004US6798179 Stabilized direct-current power supply device
09/28/2004US6798152 Closed loop current control circuit and method thereof
09/28/2004CA2461784A1 Power management systems and methods
09/28/2004CA2388654C Energy conserving motor controller
09/28/2004CA2155525C An emergency power system
09/23/2004WO2004081617A2 Chalcogenide glass constant current device, and its method of fabrication and operation
09/23/2004US20040186934 Universal serial bus transceiver and associated methods
09/23/2004US20040184289 Output resistance modulation in power converters
09/23/2004US20040184212 System for voltage stabilization of power supply lines
09/23/2004US20040183513 Low-loss transformer-coupled gate driver
09/23/2004US20040183510 Power array system and method
09/23/2004DE102004013042A1 Spannungsregler und zugehöriger Halbleiterspeicherbaustein Voltage regulator and associated semiconductor memory device
09/22/2004EP1460518A1 Microprocessor power supply system comprising a programmable power supply and a programmable brownout detector
09/22/2004EP1459605A1 Electronic ballast with rail voltage switching
09/22/2004EP1459282A1 Electronic ballast with low voltage output
09/22/2004CN2643542Y Power source control circuit device for DC brushless fan motor
09/22/2004CN1530788A Apparatus for regulating stabilized circuit outputting voltage
09/21/2004US6795366 Internal voltage converter scheme for controlling the power-up slope of internal supply voltage
09/21/2004US6795287 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited
09/16/2004WO2004079472A1 Constant current drive circuit
09/16/2004WO2004064232A3 Voltage supply circuit and method for generating a supply voltage
09/16/2004US20040181699 Power supply controller and information processor
09/16/2004US20040181697 Information handling system featuring a power-based current limiting circuit
09/16/2004US20040181369 System for aiding the preparation of operation and maintenance plans for a power-generation installation
09/16/2004US20040179390 Chalcogenide glass constant current device, and its method of fabrication and operation
09/16/2004US20040178785 Adaptive multi-mode system and method
09/16/2004US20040178782 Current controller for inductive load
09/16/2004US20040178779 Thermally compensated current sensing of intrinsic power converter elements
09/16/2004US20040178778 Integrated low dropout linear voltage regulator with improved current limiting
09/16/2004DE10307006A1 Circuit for switch-on current control for connectable electric consumer appliance, comprises first electric switching unit with transistor for control of switch-on current of consumer appliance
09/15/2004EP1457857A2 Maximum power follow-up control apparatus
09/15/2004EP1456728A1 Device with controllable impedance
09/15/2004EP1212827B1 Start-up circuit for voltage regulators
09/15/2004CN2641689Y Low-cost high-resolution digital controlled constant-current source
09/15/2004CN1529216A Reference current source of low-temp. coefficient and low power-supply-voltage coefficient
09/15/2004CN1167198C Electronic drive contrl mechanism
09/15/2004CN1166993C Voltage regulating device
09/14/2004US6791397 Constant current circuit for controlling variation in output current duty caused by the input capacitance of a current mirror circuit
09/14/2004US6791390 Method of forming a voltage regulator semiconductor device having feedback and structure therefor
09/14/2004US6791210 Cyclic regulation apparatus, system, and method
09/10/2004WO2004077673A1 Semiconductor integrated circuit
09/10/2004WO2004077190A1 On chip power supply
09/10/2004CA2517152A1 On chip power supply
09/09/2004US20040177201 Hot swap power delivery circuit
09/09/2004US20040176224 Self-spotting apparatus for free-weights
09/09/2004US20040174206 Voltage detecting circuit
09/09/2004US20040174150 Voltage regulator circuit
09/09/2004US20040174149 Power supplying methods and apparatus that provide stable output voltage
09/09/2004US20040174148 Data processing system
09/09/2004US20040174147 Factorized power architecture with point of load sine amplitude converters
09/09/2004US20040174143 Universal electrical energy saver
09/09/2004US20040174122 Dimming ballast control IC with flash suppression circuit
09/09/2004US20040174074 Safety switching apparatus for safely disconnecting an electrical load
09/08/2004EP1454406A2 Method of supplying power to low supply voltage power consumers
09/08/2004EP1155358B1 A method and system for alternating current regulation
09/08/2004CN2640122Y Three-phase energy-saving electromagnetic voltage regulation stabilization device
09/08/2004CN2639941Y Combined mobile power source outdoor power supply and charger
09/08/2004CN2639935Y Programmable controller controlling circuit for electro-static dust removal constant current high voltage direct current power source
09/08/2004CN1528045A Control system for a thermoelectricity cogeneration unit
09/08/2004CN1527171A PWM controller with digital dynamic track regulation
09/07/2004US6788503 Protecting circuit against short-circuit of output terminal of AC adapter
09/07/2004US6788180 Controllable transformer
09/07/2004US6788133 Reference voltage providing circuit
09/07/2004US6788132 Voltage and time control circuits
09/07/2004US6788037 Voltage converter system and method having a stable output voltage
09/02/2004WO2004055612A3 A method and voltage feedback circuitry for improving the performance of apfc converters
09/02/2004US20040169550 Power management method and structure
09/02/2004US20040169477 Dimming-control lighting apparatus for incandescent electric lamp
09/02/2004DE4221910B4 Schalteranordnung zur automatischen Spannungsregelung unter Berücksichtigung von Blindleistung Switch arrangement for automatic voltage regulation, including reactive power
08/2004
08/31/2004US6784737 Voltage multiplier circuit
08/31/2004US6784650 Circuit configuration for generating a controllable output voltage
08/26/2004WO2004072754A2 Power supply control unit
08/26/2004US20040165104 Electronic system for reducing power supply voltage
08/26/2004US20040164789 Low dropout regulator capable of on-chip implementation
08/26/2004US20040164785 On chip power supply
08/26/2004US20040164721 Soft power-up for an external power adapter
08/26/2004US20040164720 System for providing a regulated voltage