Tornado Electric briefly describes the use and introduction of switching power supplies

Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, LCD monitors, LED lamps, communication equipment, audio-visual products, security, computer cases, digital products and instruments.

With the rapid development of power electronics technology, the relationship between power electronics equipment and people's work and life is becoming increasingly close, and electronic equipment cannot do without reliable power supply. In the 1980s, computer power supplies were fully realized as switching power supplies, and the power supply replacement of computers was completed first. In the 1990s, switching power supplies have successively entered various electronic and electrical equipment fields. Programmable switches, communications, electronic testing equipment power supplies, control equipment power supplies, etc. have widely used switching power supplies, which has promoted the rapid development of switching power supply technology. A switching power supply is a power supply that uses modern power electronics technology to control the time ratio of the switch transistor on and off to maintain a stable output voltage. The switching power supply is generally composed of a pulse width modulation (PWM) control IC and a MOSFET. Compared with a switching power supply and a linear power supply, the cost of both increases with the increase of output power, but the growth rate of the two is different. At a certain output power point, the cost of a linear power supply is higher than that of a switching power supply, which is the cost reversal point. With the development and innovation of power electronics technology, the switching power supply technology is constantly innovating, and this cost reversal point is increasingly moving towards the low output power end, which provides a broad development space for switching power supplies.

The high frequency of switching power supply is its development direction. High frequency makes the switching power supply smaller and allows the switching power supply to enter a wider range of applications, especially in the field of high-tech, which promotes the miniaturization and lightness of high-tech products. In addition, the development and application of switching power supply are of great significance in saving energy, saving resources and protecting the environment.