open frame type switching power supply are used in almost every electrical/electronic application to provide sufficient current at a required voltage. There are two main types of power supplies: linear and switched-mode. Both can be used interchangeably but switched-mode power supplies are getting more and more popular. Typically, open frame type switching power supply is used to transfer power from a DC/AC source to a DC load (i.e. a computer, mobile phone, etc.). Most switched-mode power supplies convert a higher voltage (110V or 220V AC) to a much lower DC voltage like 24V, 12V, or 5V.
open frame type switching power supply consists of a complex circuit that contains a series of power electronic subcircuits to efficiently convert the power from one voltage to another.
A typical open frame type switching power supply has the following block diagram with these key subsections:
Input stage
Switching stage
Output stage
Control Circuit
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