Hello I am trying to build a motor control with varable brake. and i was woundering if you can take a look and let me know if you see any problems.
Attached is the Diag of what i have so far. I would like to replace Q2 with a mosfet. becasue of size.
What this is a slotcar controler. I want to be able to set the throttle acceleration adjustment with a pot. I have all that working the problem i am having is with the brake circuit. somtimes when i set the pot to the no brake side it burns out. What i need is a pot that i can adjust to change to amount of short/resistance in Q2. so i can go from 0 brake to full brake. I really dont want to use a relay for full brake. as somtime you can fell the delay from a realy
thanks
for your help
Mike
Attached is the Diag of what i have so far. I would like to replace Q2 with a mosfet. becasue of size.
What this is a slotcar controler. I want to be able to set the throttle acceleration adjustment with a pot. I have all that working the problem i am having is with the brake circuit. somtimes when i set the pot to the no brake side it burns out. What i need is a pot that i can adjust to change to amount of short/resistance in Q2. so i can go from 0 brake to full brake. I really dont want to use a relay for full brake. as somtime you can fell the delay from a realy
thanks
for your help
Mike