Despite having access to an oscilloscope, [Brian] aka [schoolie] has come up with his own method for measuring PWM period and duty cycle without a scope, just in case there’s ever a PWM emergency!
The following measured waveforms Figure 5 (A) and (B) show drain-source voltage of low-side PWM switch during different turn-ratio (N=11 and 12). There are several different system behaviors between ...
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