Switching Power Supply Free Patent Search

  • Switching power supply

    Switching Power Supply Abstract In a switching power supply of the present invention, when a voltage output from start-up means is greater than a driving voltage produced by output means, the voltage from the start-up means is provided to control mea...

  • Switching power supply

    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...

  • Simplified transformer design for a switching power supply

    Switching Power Supply Abstract A transformer has a primary winding made from a first conducting trace formed on a first multilayer printed circuit board, and a secondary winding made from a second conducting trace formed on a second multilayer print...

  • Switching power supply apparatus with blanking pulse generator

    Switching Power Supply Abstract A switching power supply apparatus is provided, wherein an optimal blanking interval can be obtained for an entire load range. The switching power supply apparatus is configured such that an on-blanking pulse signal ge...

  • Uninterruptible switching power supply device and method for uninterruptibly switching voltage

    Switching Power Supply Abstract The present invention provides an uninterruptible switching power supply device and a method for uninterruptibly switching from AC input power to DC power, in which a high voltage circuit connected with the primary win...

  • Switching power supply

    Switching Power Supply Abstract A low-cost, easily-miniaturized switching power supply restrains voltage stress on first and second main switches. The switching power supply has small loss and low noise, enables setting of duty factors over a broad r...

  • 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 unit

    Switching Power Supply Abstract Accumulation and emission of energy in and from a coil having an intermediate tap is controlled by switching a DC input voltage from a DC power source on and off. Controlled voltages generated at a plurality of termina...

  • Switching power supply apparatus

    Switching Power Supply Abstract A switching power supply apparatus includes a first commutation inductor which is provided in a path of current flowing from a power supply input unit through a first switching circuit and an inductor during an ON peri...

  • Switching power supply and distributed parameter structure

    Switching Power Supply Abstract A switching power supply causes fewer losses, being capable of suppressing surges generated at a switching element, and providing improved conduction noise characteristics. The present invention is a switching power su...

  • Switching power supply unit

    Switching Power Supply Abstract Replaceable parts having a relatively short service life such as electrolytic capacitors are mounted on a reusable printed circuit board and one or more than one replaceable printed circuit boards so that the operation...

  • Switching power supply circuit and electronic device

    Switching Power Supply Abstract A surge voltage detection circuit compares a stipulated voltage V.sub.S with the drain voltage of a switching element, the drain voltage being applied by a smoothing capacitor. The comparison result is supplied to a sw...

  • Switching power supply unit

    Switching Power Supply Abstract A switching power supply unit generates a pulse signal having a duty factor based on the voltage associated with the difference between a reference voltage and the output voltage of the unit, and the voltage associated...

  • Total feed forward switching power supply control

    Switching Power Supply Abstract A power supply comprising a switching converter capable of being controlled by a control signal to provide a desired output from a DC input voltage, an analog to digital converter receiving as analog inputs a gate driv...

  • Switching power supply unit and controller IC thereof

    Switching Power Supply Abstract A low-voltage operating block and a high-voltage operating block are controlled at the same soft start voltage as that employed at the time of start-up. At a point in time at which an output DC voltage has reached an e...

  • Switching power supply controller and switching power supply

    Switching Power Supply Abstract A controller 7A for generating a drive signal PS for switching control of a switching element in a switching power supply, includes a duty ratio generator 10, 11 for detecting a duty ratio D of the drive signal PS for...

  • Switching power supply apparatus

    Switching Power Supply Abstract A switching power supply apparatus which has an input power source; a transformer having a primary winding, a secondary winding, an input winding and a magnetic flux canceling winding being connected to the secondary w...