Switching Power Supply Free Patent Search

  • Switching power supply circuit

    Switching Power Supply Abstract A switching power supply circuit includes a converter transformer in which an output obtained by switching a direct current voltage of a converter through resonance is transmitted from the primary side to the secondary...

  • Switching power supply using controlled negative feedback in series with a switching device and respo

    Switching Power Supply Abstract A commercially available power source is rectified by a diode bridge and a capacitor and supplied to a transformer via a terminal. One end of a primary coil is connected to the terminal and the other end is connected t...

  • Switching power supply controller and switching power supply

    Switching Power Supply Abstract An adder 11 outputs a signal VS indicating a value of (Vr-Vo), and a multiplier 12 outputs a control signal GS indicating a value of G(Vr-Vo) on the basis of the signal VS. An adder 13 outputs a signal HS on the basis...

  • Switching power supply

    Switching Power Supply Abstract The present invention provides a switching power supply which reduces power consumption in a standby state and improves power supply efficiency. At the time of starting a standby mode in which the output voltage VFB of...

  • Switching power supply

    Switching Power Supply Abstract A switching power supply includes a switching circuit, a main transformer, a rectifier circuit, and an output smoothing circuit, which are mounted on a base plate. Voltage transformation of an inputted direct current v...

  • Switching power supply

    Switching Power Supply Abstract An AC/DC switching power supply that realizes a high power factor and has little voltage stress on a smoothing capacitor is provided. Also a switching power supply that has little voltage stress on a switch and is suit...

  • Switching power supply using controlled negative feedback in series with a switching device and resp

    Switching Power Supply Abstract A commercially available power source is rectified by a diode bridge and a capacitor and supplied to a transformer via a terminal. One end of a primary coil is connected to the terminal and the other end is connected t...

  • Switching power supply

    Switching Power Supply Abstract A switching power supply device of the invention includes: a switching circuit for interrupting direct current to generate a pulse voltage; a transformer including a primary winding, a secondary winding, and a core for...

  • Switching power supply device

    Switching Power Supply Abstract A switching power supply device of the present invention comprises a transformer having at least a first primary coil, a first secondary coil, a second secondary coil, a second primary coil, and laminated in the sequen...

  • Switching power supply apparatus

    Switching Power Supply Abstract The present invention is directed to a switching power supply apparatus (100) adapted for controlling switching operation of a switching FET (125) which carries out switching of rectified and smoothed output of a prima...

  • Switching power supply device and switching power supply system

    Switching Power Supply Abstract There is provided a switching power supply device of hysteresis current mode control system which assures excellent response characteristic for change of output current and reduction of power consumption. In a switchin...

  • Switching power supply

    Switching Power Supply Abstract It is an object to control the peak of drain current and control overload in a same switching device in a switching power supply which has a load of a transformer and so on, and to prevent a complicated circuit and an...

  • Switching power supply

    Switching Power Supply Abstract A switching power supply; wherein a voltage detector is provided at the output of a power supply circuit and connected to the negative input of an error amplifier to amplify the error between detected voltage and refer...

  • Switching power supply apparatus for outputting variable voltage

    Switching Power Supply Abstract A switching power supply apparatus that includes a pulse generating unit that sets a frequency of a pulse width modulation signal using capacitance applied to a capacitance input terminal, a switching unit that intermi...

  • Switching power supply apparatus

    Switching Power Supply Abstract A switching power supply apparatus (200) for controlling the operation of a switching FET (225) adapted for switching a rectified smoothed output of a primary side rectifying smoothing circuit (215) by a switching cont...

  • Method of detecting switching power supply output current

    Switching Power Supply Abstract A method and apparatus for detecting output current in switching power supplies forgoes the need for any resistor or other components in series with the load. A method according to the invention includes the steps of i...