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We have developed a 24V output AC/DC isolated power supply reference board specifically for industrial equipment.

When designing a drive system such as a motor, I think that a large-capacity AC/DC isolated power supply is used to supply power to the motor circuit and control board. The reference board developed this time was developed for building a system in which the control board is powered by a separate AC/DC power supply, so that even if a problem occurs in the motor-related circuit, the control board, which is operated by a separate power supply, is not affected.

This reference board is designed using Analog Devices' isolated power supply controller IC (type: LT8315) and a general-purpose transformer (Wurth Elektronik's part number: 7508110419). Insulated power supplies often have problems with the availability of transformers, but since they are general-purpose products, they can be safely applied to systems for industrial equipment.

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ref#2
Schematics, layouts, BOM lists

Features

  • Features of the LT8315
    ・High voltage flyback converter with built-in 630V/300mA switch
    ・Operates from 18V to 560V input voltage and delivers up to 15W of power
    ・Regulation is possible without an optical isolator
    ・Quasi-resonant boundary mode operation provides good load regulation, small transformer size, and high efficiency

Product Specifications

input voltage 90-265VAC
output voltage 24V
output current 140mA

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