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绿色家电、节能是发展趋势,开关电源采用功率半导体器件作为开关,通过控制开关晶体管开通和关断的时间比率,调整输出电压,维持输出稳定的一种电源。如计算机电源全面实现了开关电源化。开关电源小型化、重量轻、功率密度/转换效率高、输入电压范围广、热消耗较少等众多种优点,得益于电子产品轻薄短小的需求趋势,迅速取代线性电
Green appliances, energy saving is the development trend, the switching power supply using power semiconductor devices as a switch, by controlling the switching transistor on and off the time ratio, adjust the output voltage, to maintain a stable output power. Such as the full realization of the computer power switching power supply. Switching power supply miniaturization, light weight, high power density / conversion efficiency, a wide range of input voltage, less heat consumption and many other advantages, thanks to the trend of demand for thin and light electronic products, the rapid replacement of linear electricity