Which device in a power supply converts AC to DC?

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Multiple Choice

Which device in a power supply converts AC to DC?

Explanation:
Converting alternating current to direct current is done by a rectifier. It uses diodes to allow current to flow in only one direction, turning the changing polarity of AC into pulsating DC. In a power supply, the rectifier is typically followed by filtering (often with capacitors) to smooth the pulsating DC into a steadier voltage. An inverter does the opposite, turning DC into AC. A transformer changes the voltage level of AC but does not convert it to DC. A capacitor stores charge and smooths DC but cannot convert AC to DC on its own.

Converting alternating current to direct current is done by a rectifier. It uses diodes to allow current to flow in only one direction, turning the changing polarity of AC into pulsating DC. In a power supply, the rectifier is typically followed by filtering (often with capacitors) to smooth the pulsating DC into a steadier voltage.

An inverter does the opposite, turning DC into AC. A transformer changes the voltage level of AC but does not convert it to DC. A capacitor stores charge and smooths DC but cannot convert AC to DC on its own.

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