Hi all
I need to pick a diode for a friend to fit in the power line of his relay. This is not the coil supply it is the power line that the relay switches to turn a pair of bulbs on and off.
They are controlled by audio input and are dynamic in operation. The draw on the line is 4A and the supply voltage is 12VDC. What diode would suit this situation?
The reason I think we need this is because the supply line is used by 2 other circuits. One is the relay driver circuit which has diode protection against back emf built in to the back end of course but due to the way the supply is configured there is a good chance that back emf from the bulbs operation is shooting through the supply lines in to the front end of both circuits.
I probably know the answer but I just want to make sure I steer him right.
regards
Fenris
I need to pick a diode for a friend to fit in the power line of his relay. This is not the coil supply it is the power line that the relay switches to turn a pair of bulbs on and off.
They are controlled by audio input and are dynamic in operation. The draw on the line is 4A and the supply voltage is 12VDC. What diode would suit this situation?
The reason I think we need this is because the supply line is used by 2 other circuits. One is the relay driver circuit which has diode protection against back emf built in to the back end of course but due to the way the supply is configured there is a good chance that back emf from the bulbs operation is shooting through the supply lines in to the front end of both circuits.
I probably know the answer but I just want to make sure I steer him right.
regards
Fenris