A modern type of regulator, which features a reference, high-gain amplifier, temperature-compensated voltage sensing resistors and transistors as well as a pass element is commonly referred to as a:

Why

This device is called a three-terminal regulator because it has exactly three connection points: one for the input voltage, one for the regulated output, and one for the ground. The full explanation — and one for every question — is in Pro.

Practise this section

Power supplies is section A-004 of the Advanced exam: Power supplies: rectifiers, filtering, regulation, switching supplies and their failure modes.

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