Can someone help me to find the transfer function of this circuit (i want to have the tension through the capacitor I think) and the step response in order to get the voltage in the function of the time?
I have a comparator (the block to the right with " ??? ") and it compares the tension between V1 (voltage divider) and V2 (tension I try to express with respect to time) and I want to know WHEN V1 = V2.
V1 is obtained by a voltage divider then it's a constant voltage
V2 can be expressed with respect to time but the circuit is too complex for me (Simulink seems to calculate this tension with the diode D7, R12, R10 and maybe R6 and R 100k...). Could someone help me to find the transfer function and also the step function because I can't find the constant of time?
(t= 0.497s when V1=V2) I'm sorry if I made mistakes as I'm not English (and I'm not an engineer either)
Here are the pictures -
And at t=0.497 reached (with V3), the voltage is zero as you can see before the diode because of the comparators and the block "NOT" with the MOSFET in the right corner:
Thanks in advance.