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  1. #1
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    offline SMPS with low "standby" power consumption

    Hello,

    Please can you tell me, I wish to do an isolated , offline SMPS (85 to 265VAC) , Power output = 34W.



    It has one isolated output of 36V (+/-5%), 32W and one isolated output of 5V (+/- 4%) , 2W.

    When the SMPS is in “standby” (i.e., its minimum load condition) the 36V rail is completely unloaded, and will be “shut down” completely, to save power.
    However, the 5V rail , when the SMPS is in “standby”, will have a load on it of 200mW.

    I have to design this SMPS so that it draws no more than 500mW from the mains when in standby.

    If you know of a PWM controller which is suitable for this, please can you tell of it.

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  2. #2
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    offline SMPS with low "standby" power consumption

    Check "Power Integration" TINY switches..!!



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