Re: How to get charge pump voltage doubler's switch bulk vol
thanks you two, there remain two questions:
1) In my circuit, S1 S3 S4 are all PMOS switchs.My new question maybe how to determine the source of S3&S4, I have seen a paper that S3's source is connected to A,S4's source is just connected to vout,is that right?
2)The work mechanism is just as electronrancher described. I have done bulk voltage swtiching, but just for vin&vout, the high voltage duration for V(A) is very shot and will come down soon when charging the vout , so if I do three voltage selecting,the comparator speed may be very high! The duration of V(A) is far more shot that my clock frequency, and if I have achieved this bulk switching, because of the fast change of V(A), the bulk voltage may oscillate.