| 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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| 03/03/2009 | US7498790 Switching regulator frequency control |
| 03/03/2009 | US7498789 Switching regulator with over-current protection |
| 03/03/2009 | US7498788 Switching regulator having energy saving circuit |
| 03/03/2009 | US7498787 Digital PWM controller for digital power supply having programmable dead times |
| 03/03/2009 | US7498786 Digital control of switching voltage regulators |
| 03/03/2009 | US7498785 Step-down switching regulator |
| 03/03/2009 | US7498784 Average current detector circuit |
| 03/03/2009 | US7498783 Extending the continuous mode of operation for a buck converter |
| 03/03/2009 | US7498782 Computer systems and voltage regulator circuits with toroidal inductors |
| 03/03/2009 | US7498781 Methods and systems for disturbance rejection in DC-to-DC converters |
| 03/03/2009 | US7498780 Linear voltage regulating circuit with undershoot minimization and method thereof |
| 03/03/2009 | US7498779 Voltage supply interface with improved current sensitivity and reduced series resistance |
| 03/03/2009 | US7498778 ORing circuit |
| 03/03/2009 | US7498754 Architecture for driving multiple loads at constant current |
| 03/03/2009 | US7498752 Driving method of external electrode fluorescent lamp inverter for backlight |
| 02/27/2009 | CA2599079A1 Solid state power controller with lightning protection |
| 02/26/2009 | WO2009025517A2 Power factor correction circuit |
| 02/26/2009 | US20090051419 Internal voltage compensation circuit |
| 02/26/2009 | US20090051418 Distributed voltage regulator |
| 02/26/2009 | US20090051417 Voltage Supply Insensitive Bias Circuits |
| 02/26/2009 | US20090051416 Apparatus, electronic component and method for generating reference voltage |
| 02/26/2009 | US20090051415 Ripple current reduction circuit |
| 02/26/2009 | US20090051339 Dc-dc converter and control circuit for dc-dc converter |
| 02/26/2009 | US20090051338 Constant current regulator with current sensing circuit loop |
| 02/26/2009 | US20090051336 Integrating current regulator and method for regulating current |
| 02/26/2009 | US20090051335 Multi-phase DC-DC converter and method for balancing channel currents |
| 02/26/2009 | US20090051334 Droop circuits and multi-phase DC-DC converters |
| 02/26/2009 | US20090051333 Switching power source apparatus and control method thereof |
| 02/26/2009 | US20090051247 Piezoelectric actuator drive device and dc/dc converter therefor |
| 02/26/2009 | DE102008032548A1 Spannungsreglerpolverschiebeverfahren und -Vorrichtung Spannungsreglerpolverschiebeverfahren and apparatus |
| 02/25/2009 | EP2028760A1 A low side driver |
| 02/25/2009 | EP2028751A2 Low noise step-down switching regulator circuits with programmable slew rate limiter and methods of use |
| 02/25/2009 | EP1844381A4 Standard cmos low-noise high psrr low drop-out regulator with new dynamic compensation |
| 02/25/2009 | CN201199748Y Converter suitable for different liquid crystal display devices |
| 02/25/2009 | CN201199743Y Lamp string control circuit |
| 02/25/2009 | CN201199741Y Lamp string control circuit |
| 02/25/2009 | CN201199740Y Lamp string control circuit |
| 02/25/2009 | CN201199671Y Power supply output circuit |
| 02/25/2009 | CN201199332Y Novel AC voltage-stabilized power supply |
| 02/25/2009 | CN201199224Y Power-supply apparatus for chopping motor of infrared carbon sulphur element analyzer |
| 02/25/2009 | CN101375482A Power supply system |
| 02/25/2009 | CN101373933A Half-bridge converter with balance capability and control method thereof |
| 02/25/2009 | CN101373389A Current generation circuit, display device having the same and method thereof |
| 02/25/2009 | CN101373388A Adjusting apparatus |
| 02/25/2009 | CN100464274C Voltage switching circuit and power factor correcting circuit with the same circuit |
| 02/24/2009 | US7496781 Timing signal generating circuit with a master circuit and slave circuits |
| 02/24/2009 | US7495940 Method and device for producing rectifier gating signals using a peak detector |
| 02/24/2009 | US7495507 Circuits for generating reference current and bias voltages, and bias circuit using the same |
| 02/24/2009 | US7495506 Headroom compensated low input voltage high output current LDO |
| 02/24/2009 | US7495505 Low supply voltage band-gap reference circuit and negative temperature coefficient current generation unit thereof and method for supplying band-gap reference current |
| 02/24/2009 | US7495504 Reference voltage generation circuit |
| 02/24/2009 | US7495503 Current biasing circuit |
| 02/24/2009 | US7495502 Circuit arrangement and method for operating a circuit arrangement |
| 02/24/2009 | US7495501 Charge pump circuit and semiconductor device having the same |
| 02/24/2009 | US7495500 Method for using a multiple polarity reversible charge pump circuit |
| 02/24/2009 | US7495425 Buck converter with demagnetization detection of the inductor |
| 02/24/2009 | US7495424 Overload compensation circuit with improved recovery response for a power supply |
| 02/24/2009 | US7495423 Apparatus and method for loop adjustment for a DC/DC switching regulator |
| 02/24/2009 | US7495422 Area-efficient capacitor-free low-dropout regulator |
| 02/24/2009 | US7495421 Multi-phase buck converter |
| 02/24/2009 | US7495420 LDO with slaved switching regulator using feedback for maintaining the LDO transistor at a predetermined conduction level |
| 02/24/2009 | US7495419 Apparatus and method for PFM buck-or-boost converter with smooth transition between modes |
| 02/24/2009 | US7495398 Discharge lamp lighting apparatus |
| 02/19/2009 | WO2009023021A1 Voltage protection circuit for thin oxide transistors, and memory device and processor-based system using same |
| 02/19/2009 | US20090046474 Vehicular headlamp |
| 02/19/2009 | US20090046404 Overcurrent limitation and output short-circuit protection circuit, voltage regulator using overcurrent limitation and output short-circuit protection circuit, and electronic equipment |
| 02/19/2009 | US20090045870 Reference voltage circuit |
| 02/19/2009 | US20090045868 Double stage compact charge pump circuit |
| 02/19/2009 | US20090045792 Power supply device and image forming apparatus |
| 02/19/2009 | US20090045791 Switching regulator |
| 02/19/2009 | US20090045790 Switching mode power supply apparatus having passive clamp circuit |
| 02/19/2009 | US20090045789 Power supply circuit |
| 02/19/2009 | US20090045788 High Voltage SEPIC Converter |
| 02/19/2009 | US20090045787 Semiconductor Device and Power Supply Device |
| 02/19/2009 | US20090045786 Mode transitioning in a dc/dc converter using a constant duty cycle difference |
| 02/19/2009 | US20090045785 Sensing a phase-path current in a multiphase power supply such as a coupled-inductor power supply |
| 02/19/2009 | DE102007038832A1 Device i.e. digital TV receiver, operating condition determining method, involves checking synchronism of switching-on process with presence of charging current, and interrupting switching-on process according to checking result |
| 02/18/2009 | EP1576437B1 System for voltage stabilization of power supply lines |
| 02/18/2009 | CN201197211Y Output current compensation circuit of LED driving circuit |
| 02/18/2009 | CN201196749Y Automatic voltage regulation automatic balancing voltage stabilizer |
| 02/18/2009 | CN201196748Y Separated regulation voltage stabilizer |
| 02/18/2009 | CN101371622A A universal dimmer |
| 02/18/2009 | CN101371211A Feed-forward circuit for adjustable output voltage controller circuits |
| 02/18/2009 | CN101371210A Power supply for 2-line dimmer |
| 02/18/2009 | CN101369781A AC high voltage high power adjustable CVCF power apparatus and its emendation method |
| 02/18/2009 | CN101369162A Reference voltage circuit |
| 02/18/2009 | CN101369161A Low-voltage difference linear voltage stabilizer without off-chip compensation capacitor |
| 02/18/2009 | CN101369160A Automatic controller of constant-current power supply |
| 02/18/2009 | CN100463347C DC regulated power supply |
| 02/18/2009 | CN100463346C Switch power supply device and electronic instrument with display device |
| 02/18/2009 | CN100463039C Display device |
| 02/18/2009 | CN100462888C Detecting regulation circuit |
| 02/17/2009 | US7493504 System and method for interleaving point-of-load regulators |
| 02/17/2009 | US7492619 System and method for providing control for switch-mode power supply |
| 02/17/2009 | US7492611 Intelligent power-supplying device |
| 02/17/2009 | US7492214 Analog voltage generator with self-biased capacitive feedback stage |
| 02/17/2009 | US7492213 High-voltage generating circuit including charge transfer switching circuit for selectively controlling body bias voltage of charge transfer device |
| 02/17/2009 | US7492141 Resonant inverter exhibiting depressed duty variation |
| 02/17/2009 | US7492140 Negative current control for voltage regulator |
| 02/17/2009 | US7492139 Digital control circuit for switching power supply with serial data input |