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, liquid crystal displays, LED Lighting, communication equipment, audio-visual products, security, computer chassis, digital products and instruments.

With the rapid development of power electronics technology, the relationship between power electronic equipment and people's work and life is increasingly close, and electronic equipment is inseparable from reliable power supply. In the 1980s, computer power supply fully realized switching power supply, and completed the computer first. In the 1990s, switching power supplies have entered various fields of electronics and electrical equipment. Program-controlled switches, communications, electronic testing equipment power supplies, control equipment power supplies, etc. have widely used switching power supplies, which has further promoted the rapid development of switching power supply technology. . The switching power supply is a kind of power supply that uses a modern power electronic technology to control the ratio of the time when the switching transistor is turned on and off, and maintains a stable output voltage. The switching power supply is generally composed of a pulse width modulation (PWM) control IC and a MOSFET. Compared with linear power supplies, switching power supplies increase in cost as output power increases, but the growth rates vary. The linear power supply cost is at a certain output power point, but higher than the switching power supply, this cost reversal point. With the development and innovation of power electronics technology, switching power supply technology is constantly innovating. This cost reversal point is increasingly moving to the low output power end, which provides a wide space for development of switching power supplies.

The high frequency of switching power supply is the direction of its development. The high frequency makes the switching power supply miniaturized, and the switching power supply enters a wider range of applications, especially in the high-tech field, which promotes the miniaturization and lightness of high-tech products. Turn. In addition, the development and application of switching power supplies are of great significance in terms of energy conservation, resource conservation and environmental protection.

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Label: The development direction of switching power supply

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