So what the value of R1, and which transistor Q1 that i should use ?This may do what you need. Q2 in the circuit is your tip122 transistors. For a 3A limit, R2 should be ≈ 0.22Ω. R1 should be selected to give about 12mA base current into Q2.
Thread starter | Similar threads | Forum | Replies | Date |
---|---|---|---|---|
M | Would this simple current limiter actually work? | General Electronics Chat | 8 | |
P | Inrush current limiter | Power Electronics | 34 | |
current limiter and shut down and signal out | General Electronics Chat | 11 | ||
P | Parasitic Power | Power Electronics | 30 | |
A | Current Limiter as a stop for linear actuator | General Electronics Chat | 58 |
by Aaron Carman
by Duane Benson
by Jake Hertz
by Jake Hertz