04-21-2008, 06:34 AM
Chuzie,
Yes.. you can use a variable resistor (potentiometer) in series with another resistor (for the minimum amount of time desired)
T=R*C (time = resistance x capacitance)
R = Ohms
C = Capacitance is in farads
T = seconds = a time constant... 1st time constant is approximately 63% of the overall capacitor voltage storage..
I can't recall the gate trigger voltage for an SCR but it probably around 2-4Volts...but I'm guessing...you would need to look at a spec sheet.
Hope this helps... it's been 20yrs since I had to recall such stuff..cratchhe:
chuzie Wrote:Can the 10 seconds be increased or reduced? That sounds good to me.
Yes.. you can use a variable resistor (potentiometer) in series with another resistor (for the minimum amount of time desired)
T=R*C (time = resistance x capacitance)
R = Ohms
C = Capacitance is in farads
T = seconds = a time constant... 1st time constant is approximately 63% of the overall capacitor voltage storage..
I can't recall the gate trigger voltage for an SCR but it probably around 2-4Volts...but I'm guessing...you would need to look at a spec sheet.
Hope this helps... it's been 20yrs since I had to recall such stuff..cratchhe:
'77 EB, 2.5" SL, 2"BL, Cummins 4bt, C4 w/Art Carr manual Valve Body, 35" BFG KM2s
http://www.youtube.com/watch?v=M_HqhiW38ik
http://www.youtube.com/watch?v=M_HqhiW38ik