Radio Amateur Quiz Canadian License

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Question A-004-003-002

What is one characteristic of a switching voltage regulator?

Correct Answer

The control device is switched on and off, with the duty cycle proportional to the line or load conditions

Explanation

Switching regulators use a control element (transistor) that rapidly switches between fully ON and fully OFF states. The output voltage is controlled by varying the duty cycle (ON-time vs. OFF-time) of these switches.

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