What does a voltage regulator do?

A voltage regulator is an electrical or electronic device that maintains the voltage of a power source within acceptable limits. This is esp...

A voltage regulator is an electrical or electronic device that maintains the voltage of a power source within acceptable limits. This is especially important in devices that require a steady voltage, such as computers and other electronics. Without a voltage regulator, these devices could be damaged by sudden spikes or drops in voltage.

Basic Electronic Theory will answer: What does a voltage regulator do?

A voltage regulator is a circuit that creates and maintains a fixed output voltage, irrespective of changes to the input voltage or load conditions. This makes it an essential component in power supplies for electronic equipment. There are many different types of voltage regulators, with varying degrees of complexity and performance. Some regulators can maintain voltages within a few hundredths of a percent, while others are less precise but more robust and tolerant of input variations.

Also See: Where is the "Voltage Regulator" located

The most common type of voltage regulator is a linear regulator, which uses a transistor to maintain a constant current through a resistor, which in turn sets the output voltage. Other types of voltage regulators include switching regulators and buck-boost regulators.

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