Introduction, main features and related uses of switching power supply

The switching power supply is a type of power supply that uses modern power electronics to control the time ratio of switching tubes on and off to maintain a stable output voltage, and is generally made up of pulse width modulation (PWM) control ICs and MOSFETs. As power electronics technology develops and innovates, so does switching power supply technology. With its small size, light weight and high efficiency, switching power supply is now widely used in almost all electronic devices and is an indispensable power supply for the rapid development of today's electronic information industry.

Switching power supplies are an indispensable form of power supply for the rapid development of the electronic information industry.

Key features

1. Small size and light weight: As there is no frequency transformer, the volume and weight is only 20-30% of a linear power supply.

They are small in size and light in weight.

2. Low power consumption and high efficiency: The power transistor works in a switched state, so the power consumption on the transistor is small, and the transfer efficiency is high, generally 60-70%, while the linear power supply is only 30-40%.

Principal use

Switching power supplies are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instruments and meters, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lighting, communication equipment, audio-visual products, security monitoring, LED light bags, computers In areas such as chassis, digital products and instruments.