ELV Dummy Load for Power Supply Testing
An appliance of some kind is in technical terms a load – it draws power. We can simulate this using a device, a dummy load, that draws power at a known rate. Dummy loads are usually nothing more than a large resistor. The supply voltage is dropped across the resistor and the energy contained in the supply current is dumped as heat – often an awful lot of heat!
   ELV Dummy Load for Power Supply Testing
Full description at ELV Dummy Load for Power Supply Testing website
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