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    2X100V 500W Audio Amplifier SMPS Power Supply - Electronics Projects Circuits

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    K. RAJA SEKAR
    This document describes a 2x100V 500W audio amplifier switching mode power supply (SMPS). The SMPS uses an UC3844 integrated circuit to control MOSFET transistors and generate multiple output voltages including dual 100V outputs at 500W total for powering an audio amplifier. A transformer is used to step down the mains voltage and provide isolation. The circuit board layout matches the pin configuration of the UC3844 for simple construction. Schematics and files for the circuit board are provided for building the SMPS.

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    2X100V 500W Audio Amplifier SMPS Power Supply - Electronics Projects Circuits

    Uploaded by

    K. RAJA SEKAR
    140 views2 pages
    This document describes a 2x100V 500W audio amplifier switching mode power supply (SMPS). The SMPS uses an UC3844 integrated circuit to control MOSFET transistors and generate multiple output voltages including dual 100V outputs at 500W total for powering an audio amplifier. A transformer is used to step down the mains voltage and provide isolation. The circuit board layout matches the pin configuration of the UC3844 for simple construction. Schematics and files for the circuit board are provided for building the SMPS.

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    2X100V 500W Audio Amplifier SMPS Power Supply – Electronics Projects Circuits

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    This document describes a 2x100V 500W audio amplifier switching mode power supply (SMPS). The SMPS uses an UC3844 integrated circuit to control MOSFET transistors and generate multiple output voltages including dual 100V outputs at 500W total for powering an audio amplifier. A transformer is used to step down the mains voltage and provide isolation. The circuit board layout matches the pin configuration of the UC3844 for simple construction. Schematics and files for the circuit board are provided for building the SMPS.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    140 views2 pages

    2X100V 500W Audio Amplifier SMPS Power Supply - Electronics Projects Circuits

    Uploaded by

    K. RAJA SEKAR
    This document describes a 2x100V 500W audio amplifier switching mode power supply (SMPS). The SMPS uses an UC3844 integrated circuit to control MOSFET transistors and generate multiple output voltages including dual 100V outputs at 500W total for powering an audio amplifier. A transformer is used to step down the mains voltage and provide isolation. The circuit board layout matches the pin configuration of the UC3844 for simple construction. Schematics and files for the circuit board are provided for building the SMPS.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 2

    2/2/23, 8:18 PM 2X100V 500W Audio Amplifier SMPS Power Supply – Electronics Projects Circuits

    2X100V 500W Audio Amplifier SMPS Power Supply


    gevv | August 4, 2019 Updated 2 Comments

    Class D Aplifier Switch mode power supply DESIGN OF THE POWER


    SUPPLY The whole device is necessary to power up of several voltages. The
    preamp requires a symmetrical voltage 15 V, IRS2092 class d power
    amplifier symmetric 100V and to +12 In the against the negative branch. The
    desired performance of the one-hundred-volt branches for the amp is 500
    Watts of power, implying the capacity of each branch current of 2.5 a. Classic
    transformer to the mains voltage with the amount of the secondary windings
    with the above mentioned voltages would have been hard to come by and
    custom made one piece is an expensive proposition. For these reasons, it is preferable to use switching power supply,
    which has also a coil or a transformer, but their retraction, and the composition is substantially easier.

    UC3844 2X100V SMPS Circuit Schematic

    Topology without transformer in case this work cannot be used. Galvanic connection to the network, which is typical,
    would complicate the interconnection of the entire device with a source of audio-signal and the implementation would
    only be possible for small differences in voltage, i.e. only for the power supply branch 100 Volts for the amplifier.
    Transformer ETD44/N87 will be because of their large size in a horizontal position. The skeleton for such a position
    has a similar pin layout as the integrated circuit. It also follows the numbering of the pins. Outlets are spaced so that
    there is it was possible to simply tap on the printed circuit board to other components without undue crossing.

    https://320volt.com/en/2x100v-500w-audio-amplifier-smps-power-supply/#google_vignette 1/2
    2/2/23, 8:18 PM 2X100V 500W Audio Amplifier SMPS Power Supply – Electronics Projects Circuits

    As the control unit of the switching power supply is selected, the integrated circuit UC3844. This the circuit is used for
    applications with a fixed working frequency, adjustable by external elements. Include in a group with a very
    complicated internal structure, but a small number of outlets and therefore even small the number of external
    components. Its reference voltage is temperature compensated. It is designed for excitation of the MOSFET transistors
    with the capacity of control electrodes in 1 nF. The circuit has an adjustable duty cycle from 0-50%. Based but of their
    predecessors, which had an adjustable duty cycle from 50 to 100 %. Innovation has solved the so-called FLIP-FlOP
    circuit, which skips every other period. The circuit includes current and voltage protection.

    2X100V SMPS Circuit pcb schematic all files alternative links:

    FILE DOWNLOAD LINK LIST (in TXT format):  LINKS-25717.zip

    https://320volt.com/en/2x100v-500w-audio-amplifier-smps-power-supply/#google_vignette 2/2

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