I'm having some doubts about this circuit and about capacitors charge/discharge in general
SCR CIRCUIT; Igt= 100MicroAmps;Vgt = 0.7V
Ok I have like 5 questions
1) Is flowing current through R2 and R3 before C1 gets fully charged?(I know in t=0 c1 will be like a wire but as long as it gets more charged it will have more oposition to current so will current split or it will it go completely through capacitor until its charged?), if the current does split will it charge as fast as if they werent there? using the famous exponential equation for RC,(R1=R)? 2) Ignoring the scr part, Will c1 charge until Vcc or will it charge until the voltage that R2+R3 will have(around 35V)? or first till 90V and then when it gets like open it will discharge until 35V?
3)Doing the math I get 700MicroAmps trhough R3 and 800Trhough R2( since I have fixed 0.7V on R3 and adding it up with 100MicroAmps through the gate I get 800Micros through R2)so that is 3.34Volts for Vc to activate the SCR, my doubt is: since I'm asked for the graph of voltage in C1( or AK) will C1 discharge by the switching since SCR will get activated?(to 0Volts or VFon I don't know) which will get on 0V along time. or can the charge(maybe it will try to charge more and all current will go through it to charge it) or discharge of c1 (or any other component in this circuit) get IH lower , causing a loop of charge/discharge in the graph?
4)Imagining SCR is not 100% ideal and it doesn't have 0V, how can I know if current will flow through R2 and R3 as well?will it be lower or higher than AK current, maybe 50-50?
5)Imagining SCR is not there and instead of R3 there is another Capacitor identically to C1, how can I know the time (from the time I connect the source) of charge of this C2, do I have to assume that c1 is charged first and then c2 so I will have to add up the times by separate(tc1 + tc2)? or is there any kind of relationship between them? since C2 would have more resistance and hence more time of charge... what is the way of knowing it with certainty?
I apologize if I didn't express my questions correctly or clearly, and also if I asked to many questions in 1 threat, many thanks to everyone that can help me to watch this clear!!