Quiet switch mode power supply (SMPS) for KiwiSDR

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Comments

  • Linear versus switch-mode is an ongoing quest and debate.

    I have tried both over the years on the Kiwi and other SDR

    I have found these to be quiet and with a DIN rail, easily mounted

    Other users have used Meanwell in other chassis types.

    https://www.amazon.com/MDR-60-5-meanwell-Industrial-Supply-MDR-60/dp/B01N58K3S4

  • edited February 1

    That original HiFi-amplifier loudspeaker protection may delay about 2 seconds.

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    Loudspeaker_shut_off.jpg
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    BTW: Tried a linear regualtor IC 78H05SC and reduced the output electrolytic capacitor value from 470 µF to 47 µF => and starting power on self reset works as desired.

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