What component is commonly used to convert AC voltage to DC voltage?

The component that is commonly used to convert AC voltage to DC voltage is a rectifier. Rectifiers function by allowing current to flow in one direction, effectively "clipping" the negative portions of the AC waveform. This process results in a pulsed DC voltage, which can then be smoothed out with additional components such as capacitors to provide a steady DC output.

Rectifiers can be found in various forms, such as half-wave or full-wave rectifiers, and they are essential in power supply circuits where AC power needs to be converted for use by DC devices. Understanding the role of a rectifier is crucial for electronic technicians working with power supply units, as it directly relates to how electronic circuits obtain the power they require.