| 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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| 10/19/2011 | CN102221840A Voltage-stabilizing circuit and operation amplifying circuit | 
| 10/19/2011 | CN101533285B A reference voltage buffer circuit | 
| 10/19/2011 | CN101404199B Electromagnet controller | 
| 10/18/2011 | US8041524 Method of power factor correction | 
| 10/18/2011 | US8040813 Apparatus and method for reduced loading of signal transmission elements | 
| 10/18/2011 | US8040703 Power factor correction controller with feedback reduction | 
| 10/18/2011 | US8040177 Internal voltage generating circuit of semiconductor device | 
| 10/18/2011 | US8040176 Internal voltage generating circuit | 
| 10/18/2011 | US8040175 Supply regulated charge pump system | 
| 10/18/2011 | US8040122 Duty feed forward method and apparatus for modulating a duty of a PWM signal and power converting method and power converter using the same | 
| 10/18/2011 | US8040121 Switching regulator | 
| 10/18/2011 | US8040120 Switching DC-DC converter and oscillator | 
| 10/18/2011 | US8040119 Valley detecting circuit and method for a voltage across a switching device | 
| 10/18/2011 | US8040118 Low-dropout voltage regulator with level limiter limiting level of output voltage when level of load current changes and method of operating the same | 
| 10/18/2011 | US8040117 Closed loop negative feedback system with low frequency modulated gain | 
| 10/18/2011 | US8040116 Automatically configurable dual regulator type circuits and methods | 
| 10/18/2011 | US8040115 Multiple branch alternative element power regulation | 
| 10/18/2011 | US8040114 Method and apparatus to increase efficiency in a power factor correction circuit | 
| 10/18/2011 | US8040092 Power supply topology for a multi-processor controller in an electric traction system | 
| 10/18/2011 | US8040078 LED dimming circuit | 
| 10/18/2011 | US8040077 Starting circuit of starting device for high-pressure discharge lamp including auxiliary light source, starting device including the starting circuit, and lighting system including the starting device | 
| 10/18/2011 | US8040070 Frequency converted dimming signal generation | 
| 10/18/2011 | US8038619 Motor driver for ultrasound system | 
| 10/13/2011 | WO2011127348A2 Dc bias evaluation in an ac coupled circuit via transient gain response | 
| 10/13/2011 | WO2011051943A3 Energy collection system and method | 
| 10/13/2011 | US20110251757 Electronic Circuit Arrangement with one or more semiconductor main relays and use thereof | 
| 10/13/2011 | US20110249492 Semiconductor storage device and boosting circuit | 
| 10/13/2011 | US20110249134 Semiconductor device with conductive trenches to control electric field | 
| 10/13/2011 | US20110248777 Semiconductor chip with voltage adjustable function and manufacture method thereof | 
| 10/13/2011 | US20110248696 Method of forming a power supply controller and structure therefor | 
| 10/13/2011 | US20110248695 Switching mode power supply apparatus and power supply method thereof | 
| 10/13/2011 | US20110248694 Soft switching apparatus, method, and power conversion system | 
| 10/13/2011 | US20110248693 Voltage regulator with control loop for avoiding hard saturation | 
| 10/13/2011 | US20110248692 Turbo circuit for providing voltage regulation and related method | 
| 10/13/2011 | US20110248691 Method Of Starting DC/DC Converter Using Synchronous Freewheeling MOSFET | 
| 10/13/2011 | US20110248690 Power supply circuit for combustion appliance | 
| 10/13/2011 | US20110248689 Phase shedding converter with ripple minimization | 
| 10/13/2011 | US20110248688 Programmable low-dropout regulator and methods therefor | 
| 10/13/2011 | DE102010016406A1 Schaltungsanordnung zum Einschalten einer über Relaiskontakte mit Anschlüssen für ein elektrisches Versorgungsnetz verbindbaren Verbrauchers A circuit arrangement for turning on a relay contacts with connections for an electrical consumer supply network connectable | 
| 10/12/2011 | EP2375542A2 Power tool system | 
| 10/12/2011 | EP2125439B1 Device, system and method for reducing the consumption of closed-circuit current of a motor vehicle | 
| 10/12/2011 | EP2064806B1 Power supply device with power factor correction | 
| 10/12/2011 | EP1766491B1 Output power factor control of pulse-width modulated inverter | 
| 10/12/2011 | DE202010005413U1 Elektromotorischer Möbelantrieb mit einer Netzfreischaltungseinrichtung und entsprechende Netzfreischaltungseinrichtung Electromotive furniture drive with a mains cut-off device and corresponding mains cut-off device | 
| 10/12/2011 | CN202008614U Control system for radio frequency power of etching machine | 
| 10/12/2011 | CN102217086A Photovoltaic device | 
| 10/12/2011 | CN102216867A Low drop out (ldo) bypass voltage regulator | 
| 10/12/2011 | CN102216866A Systems and methods for voltage regulator communication | 
| 10/12/2011 | CN102216865A System for field - programmed determination of illumination set points in ballasts | 
| 10/12/2011 | CN102213967A GPU (Graphics Processing Unit) chip with voltage adjusting function and manufacturing method thereof | 
| 10/12/2011 | CN101727123B Intelligent self-adaption driving stage control system and method of integrated circuit chip | 
| 10/12/2011 | CN101609347B Power regulator and power supply switching method | 
| 10/12/2011 | CN101371210B Power supply for 2-line dimmer | 
| 10/12/2011 | CN101335517B Amplifier | 
| 10/12/2011 | CN101188382B Power supply controller and method therefor | 
| 10/11/2011 | US8036006 Power supply circuit having resistance element changing its resistance value to limit current flowing to capacitive load | 
| 10/11/2011 | US8035939 Tracking and fault communication for DC power supply modules | 
| 10/11/2011 | US8035441 High voltage generator and word line driving high voltage generator of memory device | 
| 10/11/2011 | US8035440 Multistage charge pumps with diode loss compensation | 
| 10/11/2011 | US8035415 Shift register and semiconductor display device | 
| 10/11/2011 | US8035367 Electronic device, detection circuit and voltage control method | 
| 10/11/2011 | US8035366 Driving circuit of load | 
| 10/11/2011 | US8035365 DC converter which has switching control unit to select PWM signal or PFM signal | 
| 10/11/2011 | US8035364 Step-down switching regulator with freewheeling diode | 
| 10/11/2011 | US8035363 Procedure and a switching arrangement for triggering a load element using an electronic switching element in a load circuit | 
| 10/11/2011 | US8035362 Amplifier system with DC-component control | 
| 10/11/2011 | US8035361 Boost device for voltage boosting | 
| 10/11/2011 | US8035360 Soft start unit for a power converting device | 
| 10/11/2011 | US8035358 Binary voltage regulator | 
| 10/11/2011 | US8035319 Voltage sensing apparatus for power regulation and over-voltage protection of discharge lamp and method thereof | 
| 10/11/2011 | US8035317 Optocoupler system with reduced power consumption and pulse width distortion | 
| 10/11/2011 | US8035254 Method and apparatus for integrated cable drop compensation of a power converter | 
| 10/11/2011 | DE202011050897U1 Medizintechnisches Interfacemodul, medizintechnisches System und Verwendung eines Interfacemoduls Medical Technical Interface Module, medical device system and use an interface module | 
| 10/11/2011 | DE202010005409U1 Elektromotorischer Möbelantrieb mit einer Energieversorgungseinrichtung Electromotive furniture drive with a power supply device | 
| 10/11/2011 | DE202010005406U1 Elektromotorischer Möbelantrieb mit einer Energieversorgungseinrichtung Electromotive furniture drive with a power supply device | 
| 10/06/2011 | WO2011122165A1 Solar power system and control system | 
| 10/06/2011 | WO2011121090A1 Voltage regulator | 
| 10/06/2011 | WO2011066402A3 Switched-mode pwm regulator with ramp reset | 
| 10/06/2011 | US20110242926 PSEUDO-INVERTER CIRCUIT ON SeO1 | 
| 10/06/2011 | US20110242896 Semiconductor integrated circuit device | 
| 10/06/2011 | US20110242802 Adaptive solar powered system | 
| 10/06/2011 | US20110241769 Internal voltage generator of semiconductor integrated circuit | 
| 10/06/2011 | US20110241768 Semiconductor integrated circuit | 
| 10/06/2011 | US20110241734 Coupling tolerant precision current reference with high psrr | 
| 10/06/2011 | US20110241643 Power control device | 
| 10/06/2011 | US20110241642 Voltage converter | 
| 10/06/2011 | US20110241641 Current Mode Buck Converter with Fixed PWM/PFM Boundary | 
| 10/06/2011 | US20110241640 System and method of intermittent diode braking for multiple phase voltage regulator | 
| 10/06/2011 | US20110241639 Dc-dc converter, and power supply circuit having dc-dc converter | 
| 10/06/2011 | US20110241638 Feedback voltage stabilizing apparatus, method, and power conversion system | 
| 10/06/2011 | US20110241637 Switched capacitor hold-up scheme for constant boost output voltage | 
| 10/06/2011 | US20110241636 Multi-phase non-inverting buck boost voltage converter | 
| 10/06/2011 | US20110241635 Semiconductor integrated circuit and booster circuit including the same | 
| 10/06/2011 | US20110241634 Method and systems for conduction mode control | 
| 10/06/2011 | US20110241633 Switching converter control circuit | 
| 10/06/2011 | US20110241632 Power source apparatus, control circuit, and method of controlling power source apparatus | 
| 10/05/2011 | EP2372887A1 Analog current output circuit | 
| 10/05/2011 | EP2372486A1 Method and arrangement of tracking the maximum power point of a photovoltaic module | 
| 10/05/2011 | EP2372485A1 Voltage regulator | 
| 10/05/2011 | EP1463026B1 Signal line drive circuit and light emitting device |