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) |
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12/19/2012 | CN202615256U Mobile phone power supply constant voltage circuit |
12/19/2012 | CN202615255U Digital constant current source |
12/19/2012 | CN202615143U Self-power-generation wireless switch control device |
12/19/2012 | CN102834999A Portable electronic device power manager with current limit feedback control loop modification for stabilizing an external power supply |
12/19/2012 | CN102834995A System and method for balancing input current with parallel power supplies |
12/19/2012 | CN102830745A Closed-loop control circuit of radio-frequency power supply |
12/19/2012 | CN102830744A Linear voltage regulator employing frequency compensation |
12/19/2012 | CN102830743A Under-voltage locking circuit |
12/19/2012 | CN102830742A Linear stabilizer with low pressure difference |
12/19/2012 | CN102830741A Dual-loop low dropout regulator |
12/19/2012 | CN102830740A High-efficiency bias voltage generating circuit |
12/19/2012 | CN102830739A Method for achieving 50A-7500A alternating current program control current source |
12/19/2012 | CN102135783B Method for tracking maximum power of solar cell |
12/19/2012 | CN101770247B Portable power-frequency constant current source device |
12/19/2012 | CN101194216B Output level voltage regulation |
12/18/2012 | US8335095 One cycle control method for power factor correction |
12/18/2012 | US8335061 Protection circuit, resonant converter including the protection circuit, and protecting method of the resonant converter |
12/18/2012 | US8334683 System and method for current limiting a DC-DC converter |
12/18/2012 | US8334682 Buck converter with internal ripple compensation |
12/18/2012 | US8334681 Domino voltage regulator (DVR) |
12/18/2012 | US8334662 Adaptive switch mode LED driver |
12/18/2012 | US8334661 Feedback control circuit and power converting circuit |
12/18/2012 | US8334660 Light source driving circuit with low operating output voltage |
12/13/2012 | WO2012142115A3 Apparatus and method of energy efficient illumination using received signals |
12/13/2012 | US20120314817 Data receiving device, semiconductor integrated circuit, and method for controlling data receiving device |
12/13/2012 | US20120314453 Electronic circuit control element with tap element |
12/13/2012 | US20120313713 Switching Power Supply |
12/13/2012 | US20120313696 Ultr-low-power power supply system for an ic chip |
12/13/2012 | US20120313695 High Voltage Tolerant Inverting Charge Pump |
12/13/2012 | US20120313694 Internal voltage generation circuit and operation method thereof |
12/13/2012 | US20120313609 Current limiting circuit |
12/13/2012 | US20120313608 High efficiency buck-boost power converter |
12/13/2012 | US20120313607 High efficiency buck-boost power converter |
12/13/2012 | US20120313606 Method for operating soft start circuit and devices using the method |
12/13/2012 | US20120313605 Method of switching a pwm multi-phase voltage converter |
12/13/2012 | US20120313604 Efficient bias power supply for non-isolated dc/dc power conversion applications |
12/13/2012 | US20120313603 Generation of voltage supply for low power digital circuit operation |
12/13/2012 | US20120313602 Power Converter With Capacitive Energy Transfer And Fast Dynamic Response |
12/13/2012 | US20120313601 Switching regulator |
12/13/2012 | US20120313600 Switching circuit and dc-to-dc converter |
12/13/2012 | US20120313599 Self-Driven Synchronous Rectification Boost Converter |
12/13/2012 | US20120313598 System that regulates output voltage and load current |
12/13/2012 | US20120313597 Wide-Bandwidth Linear Regulator |
12/13/2012 | US20120313596 High-frequency supply of a load without impedance matching |
12/13/2012 | US20120313595 Power Converter Package Structure and Method |
12/13/2012 | US20120313594 Step switch |
12/13/2012 | US20120313593 Arrangement for generating a control signal for controlling a power output of a power generation system |
12/13/2012 | US20120313592 Shunt regulator circuit having a split output |
12/13/2012 | US20120313435 Voltage converter |
12/12/2012 | EP2533127A1 Apparatus for obtaining information enabling the determination of a characteristic like the maximum power point of a power source |
12/12/2012 | EP2533126A1 A low drop-out voltage regulator with dynamic voltage control |
12/12/2012 | CN202600550U Maximum power point tracking (MPPT) photovoltaic controller |
12/12/2012 | CN202600549U MIFZ photovoltaic power generation maximal power tracking regulator |
12/12/2012 | CN202600548U Active snubber soft switching power regulating circuit |
12/12/2012 | CN202600547U High voltage regulator circuit |
12/12/2012 | CN202600546U Constant-current driving circuit with temperature compensation function |
12/12/2012 | CN202600545U TL431 reference source-based 0V adjustable direct current stabilized power supply circuit |
12/12/2012 | CN202600544U Circuit for converting current loop communication into RS485 communication |
12/12/2012 | CN202600073U Safety failure monitoring device for electric equipment |
12/12/2012 | CN202599560U Power cable safety monitoring device |
12/12/2012 | CN102822763A Power converter |
12/12/2012 | CN102822762A Voltage conversion device, voltage conversion method, power adjusting device, power adjusting method, solar power generation system, and management device |
12/12/2012 | CN102822761A Power control manager and method |
12/12/2012 | CN102822760A Low-power feedback and method for DC-DC converters and voltage regulators for energy harvesters |
12/12/2012 | CN102822759A Direct current (DC) correction circuit for a time of flight (TOP) photodiode front end |
12/12/2012 | CN102820777A Boost converter applicable to new energy |
12/12/2012 | CN102819227A Automobile voltage regulating circuit |
12/12/2012 | CN102818935A Protection circuit and insulation resistance measurement device including protection circuit |
12/12/2012 | CN101924343B Multifunctional circuit for controlling and protecting switching apparatus |
12/12/2012 | CN101795515B Started overshoot current suppression circuit |
12/12/2012 | CN101789609B Battery equalization system, method and circuit |
12/12/2012 | CN101594054B Voltage converting device and voltage converting method |
12/11/2012 | US8331119 Supply circuit for a motor disposing of an element providing for power switching, a protection against polarity inversion and an element for limiting the inrush current of a capacitive element |
12/11/2012 | US8331117 Multiple power supplies balance system |
12/11/2012 | US8330534 Circuit for negative bias temperature instability compensation |
12/11/2012 | US8330533 Semiconductor device and operating method thereof |
12/11/2012 | US8330532 Power efficient generation of band gap referenced supply rail, voltage and current references, and method for dynamic control |
12/11/2012 | US8330531 Internal negative voltage generation device |
12/11/2012 | US8330444 Power supply circuit and dynamic switch voltage control |
12/11/2012 | US8330443 Circuit arrangement and method for controlling power converters |
12/11/2012 | US8330442 DC to DC converter and method for reducing overshoot |
12/11/2012 | US8330441 Technique for reducing crosstalk interference between integrated switching regulators |
12/11/2012 | US8330440 Power supply device with gain changing error amplifier |
12/11/2012 | US8330439 System and method for PFM/PWM mode transition within a multi-phase buck converter |
12/11/2012 | US8330438 Method and apparatus for equalizing phase currents in multiphase switching power converters |
12/11/2012 | US8330437 Pulse width modulator with transient-based asynchronous reset |
12/11/2012 | US8330436 Series and parallel hybrid switched capacitor networks for IC power delivery |
12/11/2012 | US8330435 Hysteretic controlled buck-boost converter |
12/11/2012 | US8330434 Power supply that determines energy consumption and outputs a signal indicative of energy consumption |
12/11/2012 | US8330433 Control device reactive power compensator and method |
12/11/2012 | US8330396 Starting device with two input poles |
12/11/2012 | US8330393 System for time-sequential LED-string excitation |
12/11/2012 | US8330392 Intensity changing with reduced flicker for digitally-controlled lighting |
12/11/2012 | US8330390 AC LED light source with reduced flicker |
12/11/2012 | US8330384 Power supply unit, light emitting apparatus and dimming method thereof |
12/06/2012 | WO2012166713A2 Automatic monitoring and adjustment of a solar panel array |
12/06/2012 | WO2012164344A1 Integrated circuit device, voltage regulator module and method for compensating a voltage signal |
12/06/2012 | WO2012164341A1 Voltage regulating circuit and method |
12/06/2012 | WO2011121617A3 Voltage control system |
12/06/2012 | US20120306467 Dc-dc converter, power source circuit, and semiconductor device |