Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
11/2008
11/26/2008CN100438292C Digital switch power amplifier for magnetic suspension flywheel magnetic bearing system
11/26/2008CN100438291C Switching power source device
11/26/2008CN100438290C Dc-dc converter and converter device
11/26/2008CN100438289C Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion by voltage conversion device
11/26/2008CN100438288C Method for raizing drive circuit reliability and large power drive circuit
11/26/2008CN100438287C DC-toDC. boost converting device and method
11/26/2008CN100438286C Dual-tube dual-forward-excitation boosting type single-stage power factor correction circuit
11/26/2008CN100438284C Switch-mode power supply device
11/26/2008CN100438263C Sense amplifier, method for wake-up charging current and electronic device
11/26/2008CN100438260C Control method of boosted circuit
11/26/2008CN100437846C DC transformer, and DC/DC converter of using the DC transformer
11/26/2008CN100437414C Power supply device and vehicle lamp
11/26/2008CN100437413C DC-to-DC power regulator having non-linear load line and automatic leakage current offset adjustment
11/26/2008CN100437412C Compensating adjuster with reinforcing processing load current rapid attenuation ability
11/26/2008CN100437409C Single-stage pfc + ballast control circuit/general purpose power converter
11/26/2008CN100436022C Generator for arc welder with high power factor
11/25/2008US7457141 AC adaptor
11/25/2008US7457138 Single pin multi-function signal detection method and structure therefor
11/25/2008US7457137 Output sensor circuit for power supply regulation with main and switched outputs
11/25/2008US7457136 Overcurrent protective device for switching element
11/25/2008US7456698 Mechanical self-reciprocating oscillator and mechanism and a method for establishing and maintaining regular back and forth movement of a micromachined device without the aid of any electronic components
11/25/2008US7456670 Distributed delay-locked-based clock and data recovery systems
11/25/2008CA2479754C Multi-phase buck converter
11/20/2008WO2008139922A1 Power factor improving circuit, motor drive device, and air conditioner
11/20/2008WO2008139392A2 Dc-to-dc converter comprising a reconfigurable capacitor unit
11/20/2008WO2008139087A2 Power supply system for a plasma pollution control device to be mounted on an automobile
11/20/2008WO2008138771A1 Device for operating a switching network component
11/20/2008WO2008138020A1 Method for controlling an inverter, and inverter
11/20/2008WO2008096249A3 Led driver
11/20/2008WO2008088413B1 Capacitor charging methods and apparatus
11/20/2008WO2008002566A9 High voltage power supply
11/20/2008US20080285321 DC-AC Converter and Method of Supplying AC Power
11/20/2008US20080285319 Method and apparatus achieving a high power factor with a flyback transformer
11/20/2008US20080285317 Photovoltaic module-mounted ac inverter
11/20/2008US20080285313 Methods and apparatus to control a digital power supply
11/20/2008US20080285312 Phase Compensation Driving Scheme for Synchronous Rectifiers
11/20/2008US20080285311 Dc-dc converter
11/20/2008US20080285185 Semiconductor integrated circuit
11/20/2008US20080284402 Power Supply Unit and Portable Apparatus Using the Same
11/20/2008DE102005045889B4 Mehrphasiger Gleichstromsteller und Verfahren zum Betreiben eines mehrphasigen Gleichstromstellers Multi-phase DC-DC converter and method of operating a polyphase DC chopper
11/19/2008EP1993194A1 Signal comparison circuit and power conversion device
11/19/2008EP1992062A2 Interleaved soft switching bridge power converter
11/19/2008EP1992061A2 Improved window comparator with accurate levels for use in dc-dc converters
11/19/2008EP1992060A2 Device and method for dc voltage supply of electronic control circuits for electric motors
11/19/2008EP1761931A4 Internal voltage generator scheme and power management method
11/19/2008CN201153242Y Bias magnetic saturation resisting inverted full bridge topology circuit
11/19/2008CN201153241Y Full-electric voltage transformation circuit
11/19/2008CN101309050A Bidirectional no load control with overshoot protection
11/19/2008CN101309049A Dc-dc转换器 Dc-dc converters
11/19/2008CN101309048A Charge pump apparatus and electric power circuit
11/19/2008CN101309046A Method of forming a PWM controller and structure therefor
11/19/2008CN101309015A Cell controller, battery module and power supply system
11/19/2008CN101308724A Magnet integrate construction of transformer and inductor
11/19/2008CN100435466C DC-AC converter parallel operation system and controller IC therefor
11/19/2008CN100435465C Freely oscillating flyback converter comprising current limiting and voltage clamping
11/19/2008CN100435464C DC/DC isolation and switching device
11/19/2008CN100435463C Quasi resonant type switching power supply unit and quasi resonant type switching power apparatus using the same
11/19/2008CN100435462C Voltage conversion device, voltage conversion method, and computer-readable recording medium containing program for causing computer to execute voltage conversion control
11/19/2008CN100435461C Automatic adapting voltage positioning high-speed pulsewidth modulation controller and method
11/19/2008CN100435460C Mode conversion control circuit and method of charge pump
11/19/2008CN100435459C Capacitor stored energy triggered drive circuit of electric nail gun
11/19/2008CN100435444C Overvoltage protection circuit, and power source, power supply system and electronic apparatus
11/19/2008CN100435197C Plasma display panel drive method and drive device
11/18/2008US7454643 Pre-emptive power supply control system and method
11/18/2008US7453711 Step-up power supply unit and portable apparatus utilizing the same
11/18/2008US7453709 Method and apparatus for increasing the power capability of a power supply
11/18/2008US7453243 Switching power supply with multiple output voltages and an intermittent oscillation pulse in standby
11/18/2008US7453239 Charging apparatus having a switching element for controlling charging power
11/18/2008US7453170 Universal energy supply system
11/13/2008WO2008137935A1 Automatic zero voltage switching mode controller
11/13/2008WO2008137679A1 Switching power converter with switch control pulse width variability at low power demand levels
11/13/2008WO2008137662A1 Signal processing system using delta-sigma modulation having an internal stabilizer path with direct output-to-integrator connection
11/13/2008WO2008137315A1 Power factor correction (pfc) controller and method using a finite state machine to adjust the duty cycle of a pwm control signal
11/13/2008WO2008136978A1 Ripple cancellation
11/13/2008WO2008136977A1 Integral stack columns
11/13/2008WO2008136293A1 Power factor improving circuit
11/13/2008WO2008136231A1 Power supply for supplying power stored in storage portion and power supply system having its power supply
11/13/2008WO2008135729A1 Voltage regulator for lnb
11/13/2008WO2008135637A1 Power supplies for rf power amplifier
11/13/2008WO2008135531A1 Charge pump for generating an input voltage for an operational amplifier
11/13/2008WO2008135519A1 A device
11/13/2008WO2008013817A3 Improved level-shift circuit utilizing single level-shift switch
11/13/2008WO2007138344A3 Forward power converters and controllers
11/13/2008US20080278978 High voltage inductive charge pump dc-to-dc converter assembly
11/13/2008US20080278975 Switched Mode Power Converter and Method of Operation Thereof
11/13/2008US20080278974 Quasi-resonant fly-back converter without auxiliary winding
11/13/2008US20080278973 Apparatus and method for providing multiple functions and protections for a power converter
11/13/2008US20080278972 Power conversion circuit, driving method and drive unit therefor
11/13/2008US20080278971 Forward-forward converter
11/13/2008US20080278970 In-body information acquiring apparatus and power-supply circuit
11/13/2008US20080278969 Device and Method for Equalizing Charges of Series-Connected Energy Stores
11/13/2008US20080278139 Sleep current adjusting circuit of system on chip
11/13/2008US20080278132 Digital Compensation For Cable Drop In A Primary Side Control Power Supply Controller
11/13/2008US20080278128 Control circuit for step-down dc-dc converter, step-down dc-dc converter and control method thereof
11/13/2008DE19814681B4 Current-Mode-Schaltregler Current Mode Switching Regulators
11/13/2008DE102007022315A1 Switching arrangement for solar cell system, has switches i.e. semiconductor switch, arranged between coils and diodes and conductor branch, where coils of two assigned boost converters includes common core
11/13/2008DE102007021079A1 Verfahren zur Bestimmung von Arbeit/Leistung Method for the determination of work / performance
11/13/2008DE102007020999A1 Ladungspumpe zur Erzeugung einer Eingangsspannung für einen Operationsverstärker Charge pump for generating an input voltage for an operational amplifier
11/13/2008CA2684917A1 Power supplies for rf power amplifier
11/12/2008EP1990905A2 Method and apparatus for a high voltage power supply circuit