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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Quiescent current

In as plain English as possible, the current drawn by a device or circuit, while idling and doing nothing.

Think of a voltage regulator without any load, an audio amplifier without a sound signal, a microprocessor doing endless loops waiting for an input to be processed.
 
Current used when the circuit or device isn't actually doing anything.

I.e when the circuit is powered but not operating.
 

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