Patents
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)
10/2006
10/19/2006US20060232255 Circuit arrangement for voltage adjustment
10/19/2006US20060232254 Charging unit with a transmission unit
10/19/2006US20060232253 Efficient in-rush current limiting circuit with dual gated bidirectional hemts
10/19/2006US20060232252 Buck converter having improved transient response to load step down
10/18/2006EP1712972A1 Semiconductor device
10/18/2006EP1711875A1 Bootstrap capacitor refresh circuit
10/18/2006EP0875025B1 Junction field effect voltage reference and fabrication method
10/18/2006CN1848635A Multiple circuit of program controllable regulation output voltage
10/18/2006CN1848019A Constant voltage power supply circuit and method of testing the same
10/18/2006CN1848018A Fast restoring low voltage drop linear voltage stabilizer
10/18/2006CN1848017A Adaptive failure time controller capable of regulating failure time
10/17/2006USRE39341 Apparatus for lighting fluorescent lamp
10/17/2006US7123829 Digital camera and power supply apparatus used therefor
10/17/2006US7123729 Dual use of an integrated circuit pin and the switching of signals at said pin
10/17/2006US7123494 Power factor correction circuit and method of varying switching frequency
10/17/2006US7123492 Circuit for reducing inrush current generated during startup of a switching power supply
10/17/2006US7123491 AC-DC converting device, and electrical apparatus provided with AC-DC converting function
10/17/2006US7123462 Load control device
10/17/2006US7123085 Rail-to-rail charge pump with replica circuitry
10/17/2006US7123081 Temperature compensated FET constant current source
10/17/2006US7123079 High voltage generator in semiconductor memory device
10/17/2006US7123078 Boosting voltage control circuit
10/17/2006US7123077 Four-phase charge pump circuit with reduced body effect
10/17/2006US7123076 Semiconductor integrated circuit
10/17/2006US7123075 Current mirror compensation using channel length modulation
10/17/2006US7123067 Voltage-change control circuit and method
10/17/2006US7123062 Power-up circuit in semiconductor memory device
10/17/2006US7122996 Voltage regulator circuit
10/17/2006US7122995 Multi-phase DC-DC converter and control circuit for multi-phase DC-DC converter
10/17/2006US7122976 Light management system device and method
10/17/2006US7122975 Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unit
10/12/2006WO2006107426A1 Digital pulse width modulation controller with preset filter coefficients
10/12/2006WO2006107013A1 Supply power adjusting apparatus and semiconductor manufacturing apparatus
10/12/2006US20060226895 Multiple circuit blocks with interblock control and power conservation
10/12/2006US20060226894 Multiple circuit blocks with interblock control and power conservation
10/12/2006US20060226893 Bias circuit for high-swing cascode current mirrors
10/12/2006US20060226892 Circuit for generating a reference current
10/12/2006US20060226891 Voltage pumping device
10/12/2006US20060226890 On/off charge pump
10/12/2006US20060226823 Current-sourced power supplies
10/12/2006US20060226822 Input current sensing AVP method for future VRM
10/12/2006US20060226821 Voltage regulator circuit with two or more output ports
10/12/2006US20060226820 Overcurrent protection for power converters
10/12/2006US20060226819 Self-driven scheme for synchronous rectifier
10/12/2006US20060226818 Volt-second synchronization for magnetic loads
10/12/2006US20060226817 Metal halide lamp
10/12/2006US20060226816 Boost converter utilizing bi-directional magnetic energy transfer of coupling inductor
10/12/2006US20060226708 Semiconductor switch arrangement
10/11/2006EP1709742A1 Pull-up circuit
10/11/2006EP1709518A1 Voltage regulator circuit arrangement
10/11/2006EP1709504A1 Arc quenching device for a solar array
10/11/2006EP1709503A2 Ballast protecting device
10/11/2006EP1449043B1 Controllable transformer
10/11/2006CN2826489Y Digitalized active regulation energy-saving device
10/11/2006CN2826488Y Voltage regulator circuit capable of anti-peak interference
10/11/2006CN1846184A Power supply apparatus and electronic device having the same
10/11/2006CN1846183A 功率控制器 Power Controllers
10/11/2006CN1845439A Adjustable frequency-stabilizing voltage-stabilizing variable-frequency variable-voltage power supply
10/11/2006CN1845431A Control circuit for carrying out current limitation on peak current controlled DC-DC transformer
10/11/2006CN1845416A Compensation process of reactive-load track compensation apparatus and its control software
10/11/2006CN1279690C Control system for a thermoelectricity cogeneration unit
10/10/2006US7120403 Circuit and method for providing an auto-off capability for a wireless transmitter
10/10/2006US7120000 Circuit for the programmable protection of output over-voltages in a power factor corrector
10/10/2006US7119999 Pre-regulator with reverse current blocking
10/10/2006US7119606 Low-power, low-area power headswitch
10/10/2006US7119605 Dynamic transconductance boosting technique for current mirrors
10/10/2006US7119604 Back-bias voltage regulator having temperature and process variation compensation and related method of regulating a back-bias voltage
10/10/2006US7119529 Circuit arrangement with a resistor voltage divider chain
10/10/2006US7119527 Voltage reference circuit using PTAT voltage
10/10/2006US7119525 Control circuit of DC—DC converter and its control method
10/10/2006US7119524 Control of DC/DC converters having synchronous rectifiers
10/10/2006US7119523 Semiconductor chip
10/10/2006US7119522 Apparatus and method for step-down switching voltage regulation
10/10/2006US7119521 Multi-output DC-DC converter
10/10/2006US7119503 Temperature-to-color converter and conversion method
10/10/2006US7119502 Flashing discharge tube-use power supply and control method therefor
10/10/2006US7119501 Dynamic color mixing LED device
10/10/2006US7119500 Dynamic color mixing LED device
10/10/2006US7119498 Current control device for driving LED devices
10/05/2006WO2006104481A1 Offset correction circuit for voltage-controlled current source
10/05/2006WO2006069157A3 Temperature-stable voltage reference circuit
10/05/2006WO2006062790A3 Adaptive digital voltage regulator
10/05/2006WO2005124496A3 Method and system for enhanced dimming resolution in a light ballast through use of multiple control frequencies
10/05/2006US20060221526 Protection circuit for a power supply unit, and power supply unit with a respective protection circuit
10/05/2006US20060220733 Temperature-independent current source circuit
10/05/2006US20060220732 Constant current circuit and constant current generating method
10/05/2006US20060220731 Transistor bias current regulation apparatus, method, and system
10/05/2006US20060220730 CMOS regulator for low headroom applications
10/05/2006US20060220729 Internal voltage generator
10/05/2006US20060220728 Voltage booster circuit
10/05/2006US20060220631 Circuit and method for controlling DC-DC converter
10/05/2006US20060220630 Digital pulse width modulated power supply with variable LSB
10/05/2006US20060220629 DC-DC converter
10/05/2006US20060220628 Current sense method for bridgeless boost (BLB) PFC circuit using single current transformer
10/05/2006US20060220627 DC-DC converter utilizing a modified Schmitt trigger circuit and method of modulating a pulse width
10/05/2006US20060220626 Power losses reduction in switching power converters
10/05/2006US20060220625 Digital pulse width modulation controller with preset filter coefficients
10/05/2006US20060220624 Apparatus and method for virtually shielding a synchronous switching regulator
10/05/2006US20060220623 Switched mode power supply method and apparatus
10/05/2006US20060220622 Multi-output type DC/DC converter operable at a current discontinuous mode or a current continuous mode