Hi Guy's
I am building a bidirectional motor controller to run multiple motors using solid state relays (60V max) and a PLC. My original circuit diagram is attached, (half-bridge). The issue I have is controlling the inductive voltage as the relays are opened. I wanted to use Diode / Zener back to back configuration, but running at 5V to 30V and up to 4A I cannot find a zener rated to this. Any suggestions or circuit mods to work around this?
Thanks all
Dan
I am building a bidirectional motor controller to run multiple motors using solid state relays (60V max) and a PLC. My original circuit diagram is attached, (half-bridge). The issue I have is controlling the inductive voltage as the relays are opened. I wanted to use Diode / Zener back to back configuration, but running at 5V to 30V and up to 4A I cannot find a zener rated to this. Any suggestions or circuit mods to work around this?
Thanks all
Dan
Attachments
-
58 KB Views: 71