Hi, I am needing to build a new variable current limiting power supply for electroplating.
Previous one went up in smoke (its in a harsh environment) and i cannot locate my circuit drawings. was drawn up by someone years ago.
It was based around a 741 op amp, and 4 of 2N3055 Transistors. 5V output up to 20 A.
Needing 12v and 40 amp capacity for this one.
Power supplied by a switchmode unit.
Can anyone point me towards a circuit? I think 3055s would be old fashioned now!
Previous one went up in smoke (its in a harsh environment) and i cannot locate my circuit drawings. was drawn up by someone years ago.
It was based around a 741 op amp, and 4 of 2N3055 Transistors. 5V output up to 20 A.
Needing 12v and 40 amp capacity for this one.
Power supplied by a switchmode unit.
Can anyone point me towards a circuit? I think 3055s would be old fashioned now!