An AC-DC power supply converts alternating current (AC) from the wall outlet into a stable direct current (DC) voltage for powering electrical devices. The process involves several steps:
- AC input: AC power enters the power supply unit.
- Voltage adjustment: The power supply raises or lowers the voltage to the required level.
- AC to DC conversion: The power supply converts the AC to DC.
- Waveform smoothing: The power supply smooths the waveform of the converted power.
- Power delivery: The power flows from the power supply to the connected device.
- Monitoring: Some power supplies can report back to the system with monitoring features like sensor data, device ID, and self-test results.
Here are some other things to know about AC-DC power supplies:
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Voltage levelsAC voltage is usually rated between 115 and 240 volts, while DC voltage is usually rated between 1 and 24 volts.
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Connector typesAC connectors usually have two or three prongs, while DC connectors usually have two or four prongs.
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