Power circuit identification and fault analysis four (power supply filter circuit detailed and fault analysis)

MOS power IC full range

Filter 18.432M

description:

Detailed explanation of power supply filter circuit and fault analysis

In the power circuit, from the 220V AC voltage input power transformer to the rectifier circuit, the unidirectional pulsed DC voltage is obtained. This voltage cannot be directly added to the electronic circuit because there are a large number of AC components, and the filter circuit must pass through the filter circuit. The filtering can be added to the circuit.

In the filter circuit, the capacitor is an indispensable component. Before explaining the filter circuit, the polarity of the capacitor is introduced.

This document mainly explains the basic knowledge of capacitors, capacitor filter circuit, RC filter circuit and LC filter circuit and fault analysis!

There are several examples of filter circuits in the attached file. For detailed analysis and more, see the PDF document!