| 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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| 09/21/2011 | CN201984364U 补偿式交流稳压器 Compensation AC voltage regulator |
| 09/21/2011 | CN102197348A Ac voltage control device |
| 09/21/2011 | CN102197347A Wafer level buck converter |
| 09/21/2011 | CN102193575A Constant-power control circuit of electric vibrator during cement production |
| 09/21/2011 | CN102193574A Band-gap reference voltage source with high-order curvature compensation |
| 09/21/2011 | CN102193573A 电压控制系统 Voltage control system |
| 09/21/2011 | CN102193572A Reference voltage generation circuit |
| 09/21/2011 | CN102193571A Energy gap reference voltage generator with low power supply voltage |
| 09/21/2011 | CN102193570A Voltage divider circuit and semiconductor device |
| 09/21/2011 | CN101630171B Segmentation self-adapting hill climbing method and system applied for tracing maximum power of photovoltaic cell |
| 09/21/2011 | CN101237737B Backlight system with lamp tube current balance and feedback mechanism and its related method |
| 09/21/2011 | CN101236441B Circuit for improving power supply load regulation rate |
| 09/20/2011 | US8024077 Smart transformer |
| 09/20/2011 | US8023294 Noise reduction systems and methods for unshielded coupling of switch mode power supply |
| 09/20/2011 | US8023292 Switching control device |
| 09/20/2011 | US8023290 High efficiency power converter |
| 09/20/2011 | US8022753 Semiconductor integrated circuit with intermittent power supply operation of circuit blocks |
| 09/20/2011 | US8022752 Voltage reference circuit for low supply voltages |
| 09/20/2011 | US8022751 Systems and methods for trimming bandgap offset with bipolar elements |
| 09/20/2011 | US8022750 Boost circuit |
| 09/20/2011 | US8022749 Circuit arrangement for voltage supply and method |
| 09/20/2011 | US8022748 Power source circuits for driving liquid crystal displays |
| 09/20/2011 | US8022726 Multi-level signaling |
| 09/20/2011 | US8022686 Reference circuit with reduced current startup |
| 09/20/2011 | US8022685 Temperature dependent voltage source compensation |
| 09/20/2011 | US8022683 Powering a power supply integrated circuit with sense current |
| 09/20/2011 | US8022682 Method to reduce inrush voltage and current in a switching power converter |
| 09/20/2011 | US8022681 Hybrid low dropout voltage regulator circuit |
| 09/20/2011 | US8022680 Switching DC-DC converter with adaptive-minimum-on-time control and method of adaptively controlling minimum-on-time of a switching DC-DC converter |
| 09/20/2011 | US8022679 Systems and methods for fast switch turn on approximating ideal diode function |
| 09/20/2011 | US8022642 Discharge lamp lighting device |
| 09/20/2011 | US8022640 Electronic power protection circuit and applications thereof |
| 09/20/2011 | US8022637 Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballast |
| 09/20/2011 | US8022634 Method and system for dimming AC-powered light emitting diode (LED) lighting systems using conventional incandescent dimmers |
| 09/15/2011 | WO2011112299A2 Dc to dc converter having switch control and method of operation |
| 09/15/2011 | WO2011112228A1 Energy harvester battery charger circuit and method |
| 09/15/2011 | WO2011111720A1 Control device of electromagnetic inductive load |
| 09/15/2011 | WO2011111511A1 Solar power generation system and feeding system |
| 09/15/2011 | WO2011111442A1 Illumination system |
| 09/15/2011 | WO2011110718A1 System for eliminating current surges in electronic systems and equipment having intermittent current consumption |
| 09/15/2011 | WO2011029875A3 Voltage transformer and method for controlling the transformer |
| 09/15/2011 | US20110222702 Power supply circuit including voltage regulator and headphone driving circuit employing the same |
| 09/15/2011 | US20110221516 Information technology equipment |
| 09/15/2011 | US20110221514 Variable stage charge pump and method for providing boosted output voltage |
| 09/15/2011 | US20110221513 Semiconductor device having boosting circuit |
| 09/15/2011 | US20110221512 Charge Pump |
| 09/15/2011 | US20110221511 Variable input voltage charge pump |
| 09/15/2011 | US20110221508 Semiconductor device |
| 09/15/2011 | US20110221417 Power supply apparatus and power supply control method |
| 09/15/2011 | US20110221416 Battery charger and method for collecting maximum power from energy harvester circuit |
| 09/15/2011 | US20110221415 Dc/dc converter |
| 09/15/2011 | US20110221414 DC to DC CONVERTER HAVING ABILITY OF SWITCHING BETWEEN CONTINUOUS AND DISCONTINUOUS MODES AND METHOD OF OPERATION |
| 09/15/2011 | US20110221413 Dc to dc converter having switch control and method of operation |
| 09/15/2011 | US20110221412 Voltage converter and led driver circuits |
| 09/15/2011 | US20110221411 Semiconductor memory device and method for operating the same |
| 09/15/2011 | US20110221410 Current injector circuit for supplying a load transient in an integrated circuit |
| 09/15/2011 | US20110221409 Semiconductor device |
| 09/15/2011 | US20110221408 Power supply and controller circuits |
| 09/15/2011 | US20110221407 Dc-dc converter and control method thereof |
| 09/15/2011 | US20110221405 Methods and apparatus for calibration of power converters |
| 09/15/2011 | US20110221404 Sspc with active current limiting |
| 09/15/2011 | US20110221403 Semiconductor buck circuit with floating-voltage supression shunting current load |
| 09/15/2011 | US20110221402 Power factor correction circuit and driving method thereof |
| 09/15/2011 | US20110221401 Power Factor Compensating Method |
| 09/15/2011 | US20110221281 Method for detecting capacity leakage of capacitor in power conditioner, power conditioner performing the same, and photovoltaic power system provided with the same |
| 09/15/2011 | DE102005040072B4 Vorrichtung zum verpolungssicheren Versorgen einer elektronischen Komponente mit einer Zwischenspannung aus einer Versorgungsspannung Means for supplying a polarized electronic component with an intermediate voltage from a supply voltage |
| 09/14/2011 | EP2364468A2 Low drop-out voltage regulator with wide bandwidth power supply rejection ratio |
| 09/14/2011 | EP2364464A1 Digital charge-mode control of a power supply |
| 09/14/2011 | EP1999532B1 Supply circuit with ripple compensation |
| 09/14/2011 | CN201974719U 电压时序控制卡 Voltage Timing Control Card |
| 09/14/2011 | CN102187294A Lighting source with low total harmonic distortion |
| 09/14/2011 | CN102185534A Maximum power tracking method and device of photovoltaic cell |
| 09/14/2011 | CN102185530A Maximum power point tracking control method of solar energy inverter |
| 09/14/2011 | CN102185524A Reliable photovoltaic power system employing smart virtual low voltage photovoltaic modules |
| 09/14/2011 | CN102183986A Multi-source power supply control method, device and system |
| 09/14/2011 | CN102183985A Circuit for generating boosted voltage and operation method of the same |
| 09/14/2011 | CN102183984A Power battery simulation system |
| 09/14/2011 | CN102183983A Method for implementing charge pump keeping constant output current, and charge pump thereof |
| 09/14/2011 | CN101621251B Switching power supply |
| 09/14/2011 | CN101582642B Electromagnetic interference resistance power converter |
| 09/14/2011 | CN101506752B Fixed-off-time power factor correction controller |
| 09/14/2011 | CN101504860B Bit-line voltage generator with low coupling effect and controlling method thereof |
| 09/14/2011 | CN101465601B AC/DC converting circuit based on source terminal feedback and output voltage detection circuit thereof |
| 09/14/2011 | CN101454968B Cycloconverter power control system |
| 09/14/2011 | CN101227147B Direct current switch power supply control circuit |
| 09/13/2011 | US8020012 Power auto-detection apparatus |
| 09/13/2011 | US8018315 Power converter employing a micromagnetic device |
| 09/13/2011 | US8018271 Semiconductor integrated circuit |
| 09/13/2011 | US8018270 Charge pump circuit |
| 09/13/2011 | US8018269 Fast-switching low-noise charge pump |
| 09/13/2011 | US8018217 PWM power converter using a multi-slope ramp signal to improve the transient response thereof |
| 09/13/2011 | US8018216 Power supply voltage booster |
| 09/13/2011 | US8018215 Apparatus and method for monitoring the inductance value of a switching regulator |
| 09/13/2011 | US8018214 Regulator with soft-start using current source |
| 09/13/2011 | US8018213 Measuring the current through a load transistor |
| 09/13/2011 | US8018212 Buck-boost regulator |
| 09/13/2011 | US8018211 Output voltage detecting circuit and switching power supply having such output voltage detecting circuit |
| 09/13/2011 | US8018210 Voltage converting circuit and method thereof |
| 09/13/2011 | US8018209 Switching regulator for fixing frequency |
| 09/13/2011 | US8018208 Error amplification for current mode control switching regulation |