#832 скачать в хорошем качестве

#832

Episode 832 A look at the ring waveform of a self oscillating inductor used in a boost conversion circuit. Inductors have built-in capacitors. Update: there is about 375pf of capacitance in FET drain source. This is larger than the capacitance of the inductor. I did a test where I used a relay instead of the transistor (so no extra capacitance). The ring went from 440khz to 1.4MHz. so there is still self capacitance but much lower capacitance than first thought. Thanks to several viewers that pointed this out. Be a Patron:   / imsaiguy