Hello there!
I have a circuit that drives a solenoid. From my limited understanding it is sort of like the braking mode of an h-bridge. There are two wires, one sends a negative current and one a positive current to result in a net direction of movement and amplitude. IE one wire provides -14 volts and the other 10 for a -4 net volts. I am wanting to replace the 15 mH solenoid with an inductor for testing purposes. I am concerned about flyback EM current when the power is turned off. Should I use an optoisolater on each wire or will diodes work? A large capacitor across the two in parallel?
The circuit solenoid uses 14 volts and 4 amps.
As the current goes both directions I do not understand how a schottky diode on either would work unless I ran each to a separate ground?
Thank you for your help!
I have a circuit that drives a solenoid. From my limited understanding it is sort of like the braking mode of an h-bridge. There are two wires, one sends a negative current and one a positive current to result in a net direction of movement and amplitude. IE one wire provides -14 volts and the other 10 for a -4 net volts. I am wanting to replace the 15 mH solenoid with an inductor for testing purposes. I am concerned about flyback EM current when the power is turned off. Should I use an optoisolater on each wire or will diodes work? A large capacitor across the two in parallel?
The circuit solenoid uses 14 volts and 4 amps.
As the current goes both directions I do not understand how a schottky diode on either would work unless I ran each to a separate ground?
Thank you for your help!