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)
12/2006
12/06/2006	CN1874104A Constant voltage power supply circuit and method of controlling the same
12/06/2006	CN1873576A Low voltage difference linear voltage regulator with high ripple suppression ratio of power supply
12/06/2006	CN1873575A Half controlled bridge type rectification stabilizator in five phases
12/06/2006	CN1288829C Power source supply device and method thereof
12/05/2006	US7145786 Point of load sine amplitude converters and methods
12/05/2006	US7145383 Voltage supply with low power and leakage current
12/05/2006	US7145381 Apparatus for controlling a boosted voltage and method of controlling a boosted voltage
12/05/2006	US7145318 Negative voltage regulator
12/05/2006	US7145317 Constant frequency duty cycle independent synthetic ripple regulator
12/05/2006	US7145316 Control circuit for monitoring and maintaining a bootstrap voltage in an N-channel buck regulator
12/05/2006	US7145315 Over-current detection circuit in a switch regulator
12/05/2006	US7145295 Dimming control circuit for light-emitting diodes
11/2006
11/30/2006	WO2006127844A2 Device, system, and method for providing a low-voltage fault ride-through for a wind generator farm
11/30/2006	WO2006127122A2 Apparatus using a time division multiple access bus for providing multiple levels of security in a communications system
11/30/2006	WO2006126639A1 Power supply apparatus having switchable switching regulator and linear regulator
11/30/2006	WO2006126324A1 Semiconductor device and power supply device
11/30/2006	US20060268584 Electronic circuit control element with tap element
11/30/2006	US20060267676 Voltage supply with low power and leakage current
11/30/2006	US20060267675 PMOS current mirror with cascaded PMOS transistors and zero voltage gate threshold transistor
11/30/2006	US20060267674 Threshold voltage extraction for producing a ramp signal with reduced process sensitivity
11/30/2006	US20060267673 [modulator]
11/30/2006	US20060267672 Reference voltage generation circuit that generates gamma voltages for liquid crystal displays
11/30/2006	US20060267671 Charge pump circuit for high side drive circuit and driver driving voltage circuit
11/30/2006	US20060267670 Semiconductor circuit apparatus
11/30/2006	US20060267567 Constant voltage power supply circuit and method of controlling the same
11/30/2006	US20060267566 Dual circuit wall switch occupancy sensor and method of operating same
11/30/2006	US20060267565 Power supply unit
11/30/2006	US20060267564 Power supply and a device for providing a control voltage that is substantially equivalent to a reference voltage used by the power supply
11/30/2006	US20060267563 Adjusting an output voltage of a converter based on current consumption
11/30/2006	US20060267562 Circuit and method combining a switching regulator with one or more low-drop-out linear voltage regulators for improved efficiency
11/30/2006	US20060267561 Power factor correction circuit for DC-DC converters with low resonance current
11/30/2006	US20060267560 Device, system, and method for providing a low-voltage fault ride-through for a wind generator farm
11/29/2006	EP1727015A1 Voltage stabilizing and surge preventing vehicle grounding system
11/29/2006	CN2842836Y Electricity saver with intelligent reactive compensation function
11/29/2006	CN2842515Y Linear stabilized power-supply circuit
11/29/2006	CN2842514Y Electricity economizer using slow-slope lift to regulate voltage
11/29/2006	CN1871574A A method and a system for powering an integrated circuit, and an integrated circuit especially designed to be used therein
11/29/2006	CN1871566A 镇流器控制卡 Ballast Control Card
11/29/2006	CN1870837A Method of current management in a battery powered audio device
11/29/2006	CN1870406A Secondary side controller and method therefor
11/29/2006	CN1870404A AC/DC converter capable of suppressing harmonic
11/29/2006	CN1869854A PFM control circuit for high efficient changing voltage in broad loading demand
11/29/2006	CN1869615A Temp. compensation device of electronic signal
11/29/2006	CN1287511C System and method for controlling wait power
11/28/2006	US7142951 Direct current power pooling for an ethernet network
11/28/2006	US7142441 Method for using a programmable operating frequency for a DC-to-DC converter for use with embedded wireless products
11/28/2006	US7142401 Detecting overcurrents in a switching regulator using a voltage dependent reference
11/28/2006	US7142046 Current sharing using gate modulated diodes
11/28/2006	US7142044 Voltage regulator
11/28/2006	US7142043 On chip word line voltage with PVT tracking for memory embedded in logic process
11/28/2006	US7142042 Nulled error amplifier
11/28/2006	US7142041 Controlled active shutdown of charge pump
11/28/2006	US7142040 Stabilized power supply circuit
11/28/2006	US7142039 Regulated charge pump with digital resistance control
11/28/2006	US7141958 Power supply apparatus and power supply control device
11/28/2006	US7141957 Converter circuit and control method for same
11/28/2006	US7141956 Digital output voltage regulation circuit having first control loop for high speed and second control loop for high accuracy
11/28/2006	US7141955 Apparatus and method for monitoring current for a high-side switch
11/28/2006	US7141941 Staggering switching signals for multiple cold cathode fluorescent lamp backlighting system to reduce electromagnetic interference
11/28/2006	US7141939 Power supply circuit that is stable against sudden load change
11/28/2006	US7141938 Power control device, apparatus and method of controlling the power supplied to a discharge lamp
11/28/2006	US7141937 High-pressure discharge lamp operation device and illumination appliance having the same
11/23/2006	WO2006124882A2 Bandgap generator providing low-voltage operation
11/23/2006	WO2006124868A2 Multi-level active filter
11/23/2006	WO2006123684A1 Power control apparatus, power control method, power control program, and vacuum cleaner, electric washing machine and sanitary washing apparatus that have power control apparatus
11/23/2006	WO2006053339A3 High efficiency dc-to-dc synchronous buck converter
11/23/2006	WO2006029323A3 Master slave critical conduction mode power converter
11/23/2006	US20060261882 Bandgap generator providing low-voltage operation
11/23/2006	US20060261881 Circuit of voltage multiplier with programmable output
11/23/2006	US20060261880 Charge pump type booster circuit and antenna switch
11/23/2006	US20060261795 Method for regulating an output signal and circuit therefor
11/23/2006	US20060261794 Method & apparatus for DC-DC regulation with improved transient function
11/23/2006	US20060261793 Circuits, devices and methods for regulator minimum load control
11/23/2006	US20060261792 Switching regulator over voltage reduction circuit and method
11/23/2006	US20060261791 Apparatus for issuing an electrical output signal
11/23/2006	US20060261790 Direct current voltage boosting/bucking device
11/23/2006	US20060261789 Method and apparatus for digitally regulating an output voltage using noise-shaped component selection
11/23/2006	US20060261788 Method & apparatus for bi-directional current limit in a dual-power source capable device
11/23/2006	US20060261787 Device for preparing a supply voltage
11/23/2006	US20060261786 Self-oscillating boost DC-DC converters with current feedback and digital control algorithm
11/23/2006	US20060261756 Discharge lamp lighting circuit
11/23/2006	DE102005023453A1 Digital control circuit with power factor correction for a rectifier has freely programmable logic circuit with signal connection to an A-to-D converter
11/23/2006	DE102005023360A1 Gleichspannungswandlervorrichtung und Verfahren zum Betreiben des Gleichspannungswandlers eines Kraftfahrzeugbordnetzes DC-DC converter apparatus and method of operating the DC-DC converter of a motor vehicle on-board network
11/23/2006	DE102005022533A1 Vorrichtung zum Aufbereiten einer Versorgungsspannung Apparatus for conditioning a supply voltage
11/23/2006	DE102005022337A1 Spannungsgesteuerte Stromquelle Voltage-controlled current source
11/23/2006	DE102004004775B4 Spannungsregelsystem Voltage regulation system
11/23/2006	CA2608741A1 Multi-level active filter
11/22/2006	EP1724656A2 Device for adjusting high voltage to make it compatible with low voltage technology and pertinent electronic circuit
11/22/2006	EP1723717A2 Inductor-based current sensing
11/22/2006	EP1723483A2 Switching power supply controller with built-in supply switching
11/22/2006	EP1723482A1 Power system
11/22/2006	CN2840505Y 开关电源模块 Switching power supply module
11/22/2006	CN2840504Y Original side regulating voltage secondary rectifying single-phase electroplating DC power source single-chip machine constant-current apparatus
11/22/2006	CN2838834Y Feedback signal control circuit for double-silk MAG inverted welding power supply
11/22/2006	CN1866712A High-power high-precision switch linear combined manostat
11/22/2006	CN1866711A Constant-voltage circuit, semiconductor apparatus including constant-voltage circuit, and control method of constant-voltage circuit
11/22/2006	CN1866150A Automatic power controller
11/22/2006	CN1286261C Device and method for controlling supply of current and static capacitance to compressor
11/21/2006	US7139920 Method and apparatus for supplying power in electronic equipment
11/21/2006	US7138855 Circuit arrangement for switching a current of and off without the occurrence of overcurrent

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