Switching power supplies are power supplies that use modern power electronics to control the turn-on and turn-off ratios of the switches and maintain a stable output voltage. Switching power supplies typically consist of pulse width modulation (PWM) control ICs and MOSFETs. With the development and innovation of power electronics technology, switching power supply technology is also constantly innovating. At present, the switching power supply is widely used in almost all electronic devices due to its small size, light weight, and high efficiency. It is an indispensable power supply mode for the rapid development of the electronic information industry today.
With the rapid development of power electronics technology, the relationship between power electronics equipment and people's work and life has become increasingly close, and electronic equipment is inseparable from reliable power supply. Into the 80s, computer power supply fully realized the switching power supply, the first to complete the computer's After the power generation, the switching power supplies of the 1990s entered various electronic and electrical equipment fields one after another. Program-controlled switches, communications, power supplies for electronic testing equipment, and power supplies for control equipment have all been widely used as switching power supplies, and have facilitated the rapid development of switching power supply technologies. .
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