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How to choose small, medium and high power switching power supply module

2018-10-29

General Parameters The parameters we need to consider include voltage, current, and other auxiliary functions. Voltage and current are the two most basic parameters. For example, the power supply is to supply power to the motherboard CPU, which requires 5 volts. The current needs to be calculated according to the system power consumption, such as 5A. Do we choose a 5V/5A power supply in actual purchase? In fact, we will have a certain derating design in the design, generally we choose slightly higher than the actual use of power 20%, so that the power supply work effect is better, reliable and stable, the system is slightly overloaded also does not matter.

Terminology of Switching Power Supply-Ripple Introduction

2018-11-30

The output of the ripple switching power supply is not really constant, and there is periodic jitter in the output. These jitter looks like water ripple, which is called ripple. The ripple may be a voltage or current ripple. Two parameters are usually used to describe the ripple: maximum ripple voltage: the peak-to-peak value of the ripple. Ripple coefficient: the ratio of the effective value of the AC component to the DC component. The reason for the ripple The ripple of the switching power supply comes from 2 places: Low frequency ripple: from the cycle of the AC input, the suppression ratio of the power supply to the input is not perfect, when the input changes, the output will also change.

Technical Requirements for Glue Filling of Switching Power Supply Module

2019-04-20

The potting of the AC-DC power module is very important. This process not only involves the protection of the AC-DC power module (waterproof, moisture-proof, dust-proof, anti-corrosion, etc.) but also involves the thermal design of the AC-DC power module. Power potting is a two-component, thermally conductive, additive potting silicone rubber. The rubber material is stored for a long time after mixing at room temperature, but it can be cured quickly under heating conditions, which is especially beneficial to the use of automatic production lines. No corrosion to metal, temperature resistance, high temperature aging resistance. After curing in a wide temperature range (-60~280 ℃) to maintain rubber elasticity, excellent insulation performance. No closing during curing

Introduction of switching power supply module ripple

2019-09-11

The output of the switching power supply module is not really constant, and there is periodic jitter in the output, which looks like water ripple, called ripple. The ripple may be a voltage or current ripple. Two parameters are usually used to describe the ripple: maximum ripple voltage: the peak-to-peak value of the ripple. Ripple coefficient: the ratio of the effective value of the AC component to the DC component. The reason for the ripple The ripple of the switching power supply module comes from two places: low frequency ripple: from the cycle of the AC input, the power supply's suppression ratio to the input is not perfect, when the input changes, the output will also change.

Bare Board Power Module-Analysis of the Development of Switching Power Module

2022-06-20

Switching power supply module is a large category of electronic power supply, bare board power supply module has the advantages of miniaturization, high efficiency, light weight, high power density, wide input range, low power consumption, strong reliability, etc., and has developed rapidly in recent years. Generally, its power is medium and small power, and the power of the product is mostly between 5W-350W. Bare board power modules are widely used in industrial automation, LED lighting, industrial equipment, scientific research equipment, military equipment and other fields.

Advantages and functions of switching power supply module

2022-06-27

Switching power supply module power density is increasing, the conversion efficiency is also getting higher and higher, the application is more simple, switching power supply module and discrete solutions compared to the advantages of where!