# Pc Power Supply Schematic Diagram And Pfc

By | September 11, 2023

## PC Power Supply Schematic Diagram and PFC

A PC power supply is an essential component of any computer system. It converts the AC power from the wall outlet into the DC power that the computer's components need to operate. A PC power supply schematic diagram is a visual representation of the power supply's internal circuitry. It shows how the different components of the power supply are connected together and how they work together to convert AC power into DC power. ## Components of a PC Power Supply The main components of a PC power supply are: * The transformer: The transformer converts the AC power from the wall outlet into a higher voltage AC current. * The rectifier: The rectifier converts the AC current from the transformer into DC current. * The filter capacitors: The filter capacitors smooth out the DC current from the rectifier. * The voltage regulators: The voltage regulators provide the different voltages that the computer's components need. * The fan: The fan cools the power supply. ## PFC Power factor correction (PFC) is a technique used to improve the efficiency of a power supply. It does this by ensuring that the current drawn from the AC power source is in phase with the voltage. This reduces the amount of wasted energy in the form of heat. There are two main types of PFC: * Passive PFC: Passive PFC uses a capacitor to store energy during the positive half-cycle of the AC waveform and then release it during the negative half-cycle. This helps to keep the current in phase with the voltage. * Active PFC: Active PFC uses a more complex circuit that actively adjusts the current drawn from the AC power source to keep it in phase with the voltage. Active PFC is more efficient than passive PFC, but it also costs more. ## How to Read a PC Power Supply Schematic Diagram Reading a PC power supply schematic diagram can be a bit daunting at first, but it's not too difficult once you know what you're looking at. The first thing you need to do is identify the different components of the power supply. The transformer is usually the largest component, and it's usually located in the center of the diagram. The rectifier is usually located next to the transformer, and the filter capacitors are usually located next to the rectifier. The voltage regulators are usually located near the output of the power supply. Once you've identified the different components, you can start to understand how they work together. The transformer converts the AC power from the wall outlet into a higher voltage AC current. The rectifier converts the AC current from the transformer into DC current. The filter capacitors smooth out the DC current from the rectifier. The voltage regulators provide the different voltages that the computer's components need. ## Conclusion A PC power supply schematic diagram is a valuable tool for understanding how a PC power supply works. By understanding how a power supply works, you can troubleshoot problems and make informed decisions about which power supply to buy. Here are some additional resources that you may find helpful: * [PC Power Supply 101: How to Choose the Right Power Supply for Your PC](https://www.howtogeek.com/197867/pc-power-supply-101-how-to-choose-the-right-power-supply-for-your-pc/) * [How to Read a PC Power Supply Schematic Diagram](https://www.techwalla.com/articles/how-to-read-a-pc-power-supply-schematic-diagram) * [PC Power Supply Basics](https://www.pcgamer.com/pc-power-supply-basics/)

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