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Dummy Load

zemaj

Mar 7, 2011
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Mar 7, 2011
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Hi

Does anyone know the exact descriptions/definitions for the dummy load that used to test power supply? Please send link other than wikipedea.

Thanks
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
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25,510
It is a device which can provide a load in order to allow a power supply to be tested.

Sorry if that sounds obvious, but that's what it is.

Typically it provides a known load, either by providing one or a combination of (possibly variable) current, resistance, or power loads. If used to test a current source, it may provide a resistance, power or voltage load. If used to test a maximum power regulator (as used in solar installations) it may provide a resistance, current, or voltage load.

Other combinations don't make sense (e.g. a constant voltage load for a voltage source, constant current for a current source, or constant power to a maximum power source)

Essentially it acts like a big fat resistor, but the resistance may change in order to maintain the characteristics of the load you wish to emulate.
 
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