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)
11/2009
11/03/2009	US7612550 Dropper type regulator
11/03/2009	US7612549 Low drop-out regulator with fast current limit
11/03/2009	US7612548 Low drop-out voltage regulator with high-performance linear and load regulation
11/03/2009	US7612547 Series voltage regulator with low dropout voltage and limited gain transconductance amplifier
11/03/2009	US7612546 Configurable internal/external linear voltage regulator
11/03/2009	US7612545 DC/DC converter
11/03/2009	US7612544 Linearized controller for switching power converter
11/03/2009	US7612543 Current mode PWM boost circuit and feedback signal sensing method thereof
11/03/2009	US7612542 Power unit
10/2009
10/29/2009	WO2009131119A1 Smoke sensor
10/29/2009	WO2009111027A3 Optimization of rf transmit and gradient magnetic field imaging using radio frequency and gradient coils
10/29/2009	US20090268492 Switching Regulator and Electronic Device Therewith
10/29/2009	US20090268488 Semiconductor device for controlling switching power supply
10/29/2009	US20090267686 Semiconductor integrated circuit device
10/29/2009	US20090267685 Circuit and method for controlling internal voltage
10/29/2009	US20090267684 Internal voltage generating circuit of semiconductor device
10/29/2009	US20090267683 Internal voltage generator of semiconductor device
10/29/2009	US20090267680 Power driving device for electronic device
10/29/2009	US20090267587 Power supply device and switching power supply device
10/29/2009	US20090267583 Switching power supply apparatus with current output limit
10/29/2009	US20090267582 Self-tuning digital current estimator for low-power switching converters
10/29/2009	US20090267580 Dc-dc converter with switchable estimators
10/29/2009	US20090267579 Voltage regulator
10/29/2009	US20090267578 Static phase shedding for voltage regulators based upon circuit identifiers
10/29/2009	US20090267577 High voltage start-up circuit with constant current control
10/29/2009	US20090267576 Power converter with snubber
10/29/2009	US20090267575 Device and method for detecting zero crossing and voltage amplitude from single pulse signal
10/29/2009	US20090267574 Systems and methods for producing a substantially constant output voltage in a power source boost system
10/29/2009	US20090267573 Power Supplies, Power Supply Controllers, And Power Supply Controlling Methods
10/29/2009	CA2722958A1 Smoke sensor
10/28/2009	EP2111569A1 Closed-loop control method and closed-loop control device with multi-channel feedback
10/28/2009	CN101568893A Soft-start circuit and method for power-up of an amplifier circuit
10/28/2009	CN101568219A Light source driving device
10/28/2009	CN101567633A Isolated voltage converter with feedback on the primary winding and passive snubber network, and corresponding control method
10/28/2009	CN101567631A Wide voltage self-excited switching power supply
10/28/2009	CN101567549A Direct-current safety gate
10/28/2009	CN101566860A Systems and methods for producing a substantially constant output voltage in power source boost system
10/28/2009	CN101566859A Device and method for controlling reference voltage and device for generating reference voltage
10/28/2009	CN100555797C Moving energy station
10/28/2009	CN100555155C Method for tracing maximum power point of solar photovoltaic battery
10/28/2009	CN100555154C Electronic system with APC
10/28/2009	CN100555153C Device for adjusting the impedance of a high voltage line supplying an alternating current
10/27/2009	US7609536 Autotransformer AC/DC converter
10/27/2009	US7609107 Semiconductor integrated circuit and activation method of the same
10/27/2009	US7609106 Constant current circuit
10/27/2009	US7609105 Voltage level generating device
10/27/2009	US7609043 Power array system and method
10/27/2009	US7609042 Controller for DC-DC converter and method for controlling DC-DC converter
10/27/2009	US7609041 Automatic voltage control circuit and method thereof
10/27/2009	US7609040 Power supply and related circuits
10/27/2009	US7609039 Controller and control method for DC-DC converter
10/27/2009	US7609038 Switching power supply with protection function
10/27/2009	US7609037 “Natural modulation” for maximizing efficiency in power converters
10/27/2009	US7609036 Control device for a switching converter and related switching converter
10/27/2009	US7608942 Power management system
10/27/2009	CA2600858C Electronic disabling device having adjustable output pulse power
10/22/2009	WO2009128592A1 Esd protective device possible low capacitance and stability special quality and thereof.
10/22/2009	WO2009128160A1 Power source stabilization circuit, electronic devce and testing apparatus
10/22/2009	WO2009108962A3 An electrical power consumption management syste
10/22/2009	WO2009107936A3 Blood glucose measuring system
10/22/2009	US20090263110 Soft start motor control using back-EMF
10/22/2009	US20090262053 Resistive module, voltage divider and related layout methods
10/22/2009	US20090261896 Leakage current suppressing circuit and semiconductor chip
10/22/2009	US20090261894 Over-voltage protection circuit and LCD driving circuit using the same
10/22/2009	US20090261893 Semiconductor device including cell transistor and cell capacitor
10/22/2009	US20090261892 Voltage generating circuit and semiconductor device having the same
10/22/2009	US20090261890 Regulated voltage boost charge pump for an integrated circuit device
10/22/2009	US20090261889 Data output clock signal generating apparatus and semiconductor integrated circuit with the same
10/22/2009	US20090261866 Voltage divider circuit
10/22/2009	US20090261799 method and a device for feeding dc power to an amplifier module for a pulsed load
10/22/2009	US20090261798 Systems and Methods for Fast Switch Turn On Approximating Ideal Diode Function
10/22/2009	US20090261797 Switching regulator
10/22/2009	US20090261796 Electric power source system and method for the same
10/22/2009	US20090261795 Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators
10/22/2009	US20090261793 Dc/dc power converting apparatus
10/22/2009	US20090261792 Negative voltage generating device
10/22/2009	US20090261791 Power Converter with Power Switch Operable in Controlled Current Mode
10/22/2009	US20090261790 Synchronous rectifier post regulator
10/22/2009	US20090261789 Frequency-changing voltage regulation circuit
10/21/2009	EP2110729A1 Device for conversion of direct current into alternating current and for control of the maximum power for solar panels
10/21/2009	EP2110728A1 A method and device for feeding DC power to an amplifier module for a pulsed load
10/21/2009	EP2109801A1 Voltage regulator and method for voltage regulation
10/21/2009	CN201332295Y Multifunctional intelligent voltage regulator of direct current generator for trains
10/21/2009	CN201331715Y Current-voltage regulator
10/21/2009	CN201330097Y Enameled wire coiling thread spool pressure regulating device
10/21/2009	CN101563845A Charge pump for generation of multiple output-voltage levels
10/21/2009	CN101562426A Power amplification circuit
10/21/2009	CN101561687A Synchronous voltage booster circuit with active negative current modulation and control method thereof
10/21/2009	CN100553132C Power-supply apparatus
10/21/2009	CN100553126C Controller of radio-frequency power generator for reducing sensitivity to cable length
10/21/2009	CN100553110C Controller for inductive load current
10/21/2009	CN100553106C Solar grid-connected electricity-generation energy output maximization circuit structure
10/21/2009	CN100553097C Special DC constant voltage and current power supply for high-voltage speed controller
10/21/2009	CN100553092C Device for minimizing transformer saturation caused by power transfer in a communication system
10/21/2009	CN100553091C Electric voltage stabilization method, pulse frequency modulation circuit and power supplier
10/21/2009	CN100553090C Method and circuit for reducing switch concussion of switch type power supplier
10/21/2009	CN100552593C A voltage regulator and method thereof
10/21/2009	CN100552592C Systems and methods for minimizing static leakage of an integrated circuit
10/21/2009	CN100552591C Voltage control system and method
10/20/2009	US7606639 Local power consumption load control

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