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Taming the buck with a Type III compensator
I recently designed and built my first DC/DC converter, a synchronousbuck regulating some hefty DC currents. It turned outto work okay-ish (except the overvo...
The measured real-life step response of that design (switching on and off a resistive 1A load) was captured as below (reproduced from the previous article): For systems with multiple poles and zeros, that translates to abrupt jumps across those extremes, which makes for an ugly and confusing graph. So I opened xschem issue #238 and to my delight, Stefan responded with an implementation of the missing cph() function… committed and pushed to master within less than an hour!
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