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Instructions on the use of switching power supply
来源: | 作者:electronics-101 | 发布时间: 2017-09-26 | 531 次浏览 | 分享到:
With the rapid development of power electronics and switching power electronic equipment industry, the relationship with the people's work and life increasingly close, and electronic equipment cannot do without reliable power supply, computer power supply in 80s the full realization of the switching power supply, the completion of the first computer power generation in 90s, have entered the field of electronic switching power supply, electrical equipment, program-controlled switches, communication, power supply, electronic testing equipment control equipment power supply has been widely used in switching power supply
       With the rapid development of power electronics and switching power electronic equipment industry, the relationship with the people's work and life increasingly close, and electronic equipment cannot do without reliable power supply, computer power supply in 80s the full realization of the switching power supply, the completion of the first computer power generation in 90s, have entered the field of electronic switching power supply, electrical equipment, program-controlled switches, communication, power supply, electronic testing equipment control equipment power supply has been widely used in switching power supply, but also to promote the rapid development of the technology of switching power supply. Switching power supply is a power supply that uses modern power electronic technology to control the time ratio of switching transistor turn-on and turn off and maintain stable output voltage. Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET. Compared with the linear power supply, the cost of the two increases with the increase of the output power, but the growth rate of the two is different. The cost of linear power supply is higher than that of switching power supply on a certain output power point, which is the cost reversal point. With the development and innovation of power electronics technology, switching power supply technology is constantly innovating, and this cost reversal point is moving to low output power terminals, which provides a wide range of development for switching power supply.
High frequency switching power supply is the direction of its development, high-frequency switching power supply miniaturization, and switching power supply into a wider range of applications, especially in the field of high-tech applications, and promote the miniaturization of high-tech products, portability. In addition, the development and application of switching power supply has important significance in saving energy, saving resources and protecting the environment.