Switching Power Supply Free Patent Search

  • Zero-voltage-switching power supply

    Switching Power Supply Abstract A power supply including a transformer having a primary winding connected to a pair of a.c. input terminals via a rectifier circuit, and a secondary winding connected to a pair of d.c. output terminals via a rectifying...

  • Switching power supply apparatus

    Switching Power Supply Abstract An overcurrent protection circuit of a switching power supply apparatus, wherein a rectangular wave voltage is formed from an input voltage by the ON/OFF operation switching means, and an output voltage is formed by sm...

  • Bias supply circuit and a switching power supply employing the same

    Switching Power Supply Abstract A bias supply circuit and a method of operating a bias supply circuit for use with a switching power supply employing a main switch and an auxiliary switch and having an input voltage and a voltage across a clamp capac...

  • Switching power supply

    Switching Power Supply Abstract The present invention provides a switching power supply capable of limiting power supply output power with a method compatible with reduced size regardless of the modulation system. The present invention is able to pro...

  • Switching power supply unit with series connected converter circuits

    Switching Power Supply Abstract A switching power supply unit of the present invention a timing generating circuit (121) which receives a first control signal formed by a rectifier-transistor driving circuit (104), forms a second control signal based...

  • Isolated switching power supply having volt-second clamping circuit

    Switching Power Supply Abstract An isolated switching-mode power supply with a volt-second clamp circuit is provided. A control circuitry for an isolated switching-mode power supply includes a transformer having a primary winding electrically connect...

  • Resonance type switching power supply unit

    Switching Power Supply Abstract An object of the present invention is to create the optimum resonating condition to constantly decrease switching losses. A converter transformer capable of varying the leakage inductance is employed as a converter tra...

  • Switching power supply circuit

    Switching Power Supply Abstract A switching power supply circuit reduces the capacity of the capacitor on the load side, reducing its size, weight, and cost. The switching power supply circuit has a pair of diodes connected in series, a pair of MOSFE...

  • Air conditioner including a control unit powered by a switching power supply

    Switching Power Supply Abstract In an air conditioner including a control unit receiving a power from a switching power supply, the switching power supply is connected to a DC power source without passing through a switch device or power application...

  • Soft-switching power supply

    Switching Power Supply Abstract A switching power supply includes a transformer having a primary winding connected to a pair of a.c. input terminals via a rectifier circuit, and a secondary winding connected to a pair of d.c. output terminals via a r...

  • Switching power supply unit

    Switching Power Supply Abstract To provide a switching power supply unit that is configured in that a stand-by power supply does not stop before a main power supply does at the time of cutting an AC input without having excesses of capacity and a pow...

  • In board filter inductor for switching power supply on a printed circuit board

    Switching Power Supply Abstract An inductor is formed by two traces on a multilayer PC board passing through a ferromagnetic E shaped core. The first trace is the positive output bus of the DC power supply, and the second trace is the negative output...

  • Switching power supply

    Switching Power Supply Abstract A switching power supply includes a transformer having a primary winding connected to a pair of a.c. input terminals via a rectifier circuit, and a secondary winding connected to a pair of d.c. output terminals via a r...

  • Soft start of a switching power supply system

    Switching Power Supply Abstract A synch FET power supply uses a plurality of electronic switches to periodically connect the primary of a transformer to a direct current input source of power to generate a time varying magnetic field. The time varyin...

  • Switching power supply with transfer function control circuit

    Switching Power Supply Abstract A switching power supply suitable for driving a load whose load current may fluctuate abruptly comprises a main circuit unit including a switching circuit for converting a DC input voltage to an AC voltage and an outpu...

  • Resonant switching power supply circuit with voltage doubler output

    Switching Power Supply Abstract A switching power supply circuit includes an insulating converter transformer where the insulating converter transformer has a gap formed therein so that a coupling which is efficient for a loose coupling is obtained;...

  • Rectifying circuit and switching power supply device having the same

    Switching Power Supply Abstract A rectifying circuit having a pair of input terminals at which voltage having an AC waveform appears, a plurality of first rectifying elements 41, a plurality of second rectifying elements 42, a first wiring pattern 71...