ATX computer power supply

ATX computer power supply

This is a conceptual circuit diagram of the power train of a typical ATX computer power supply unit. This schematic does not show the control circuitry, that's why you see all MOSFET gates and transistor bases are open. For clarity, the parts responsible for miscellaneous auxiliary functions, such as current limit, fan control, and OV protection, which are not essential for learning the basic concepts of the power conversion, are not shown as well. For a complete schematic, see for example this annotated diagram of an ATX power supply.

This is a very simple ATX computer power supply diagram

Source: http://www.smpspowersupply.com/power-supply.html

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