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