alec_t Well-Known Member Most Helpful Member Jan 17, 2018 #42 ACharnley said: the PNP base can't drop more than 1/2 vDirect Click to expand... It can only drop about 0.7V below Vdirect, regardless of the Vdirect value, because of the base-emitter junction.
ACharnley said: the PNP base can't drop more than 1/2 vDirect Click to expand... It can only drop about 0.7V below Vdirect, regardless of the Vdirect value, because of the base-emitter junction.
A ACharnley Member Jan 17, 2018 #43 For the bottom two I rejigged and it works. Strangely the output is slightly less on one cycle - I've been unable to crack it. Attachments Screenshot_2018-01-17_19-20-21.png 50.5 KB · Views: 84 FET-control3.asc 2.7 KB · Views: 83
For the bottom two I rejigged and it works. Strangely the output is slightly less on one cycle - I've been unable to crack it.
alec_t Well-Known Member Most Helpful Member Jan 17, 2018 #44 ACharnley said: Strangely the output is slightly less on one cycle - I've been unable to crack it Click to expand... The first AC half-cycle after v(mcu) switches will be different from subsequent ones of course. Try adding a slight delay to MCU in the sim and you'll see.
ACharnley said: Strangely the output is slightly less on one cycle - I've been unable to crack it Click to expand... The first AC half-cycle after v(mcu) switches will be different from subsequent ones of course. Try adding a slight delay to MCU in the sim and you'll see.