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介绍了一种新型的基于磁开关的高占空比脉宽调制器。先将90％以上高占空比的 PWM信号通过数字电路处理巧妙转换成能被磁放大器安全“斩波”的PWM,然后利用磁放大器(可饱和电感)在非饱和与饱和条件下特性的不同,通过控制复位电流来实现对高占空比 PWM信号的脉宽调制。
A new type of high duty cycle pulse width modulator based on magnetic switch is introduced. First 90% of the high duty cycle of the PWM signal through the digital circuit cleverly converted into a magnetic amplifier can be safely “chopped” PWM, and then use the magnetic amplifier (saturable inductor) in unsaturated and saturated under different characteristics , By controlling the reset current to achieve high duty cycle PWM signal pulse width modulation.