How to design a reliable and safe isolated module power supply(3)

Correctly control the components to the specified value, reduce the number of components to delay degradation, improve component reliability and improve power reliability.

3. Dual isolated module power supply planning

The output of the bidirectional power module should pay attention to the load balance. When planning, pay attention to the main and auxiliary circuits to adjust the output evenly.

4. Component selection

A modular power supply is a power supply that can be directly mounted on a printed circuit board and can be used for application-specific integrated circuits (ASICs), digital signal processors (DSPs), microprocessors, memories, field programmable gate arrays (FPGAs) and other Digital or analog loads provide power. Typically, such modules are referred to as load (POL) power supply systems or point-of-use power supply systems (PUPS). Due to the obvious advantages of the modular structure, modular power supplies are widely used in switching equipment, access equipment, mobile communications, microwave communications, optical transmission, routers and other communications fields, as well as automotive electronics, aerospace, etc.

The use of different components will result in different module functions. For example, ceramic or electrolytic capacitors are generally used for capacitor selection, while tantalum capacitors have long life, high temperature resistance, good functions, but simply break the circuit. Please note that different products use different methods.