We are connecting a 120 volt ac to 24 dc to a .50 kva transformer .The out put voltage on the transformer is 124 volts AC. From the out put side of the power supply we have relays to fans and motor drivers etc .The power supply is oscillating even after we remove the initial relay after the power supply.( in other words isolating the power supply from the rest ofd the circuit. The current on the line side of the transformer is staying at a constant 124 volts .We are thinking of bridging the output side (24dc) with diodes or capacitors to quell the oscillation .Any suggestions
Hello Steve7,
Welcome to the TechForum!
I was looking into this issue and might have an idea to help. A powerline filter could offer a good source to clean up the signal in and out to allow a smoother transition of power and less modulation possibly.
A diode will stop current at a specific point, a capacitor will block all AC waves and possibly smooth out operation as well.
Here is the link of options I found to offer:
Power Line Filter Modules | Electronic Components Distributor DigiKey
Good luck and thank you for visiting.
Ryan
If you have a standard AC to 24VDC power supply you shouldn’t be seeing oscillations on the output if the power supply is working properly.
You may want to consider replacing the power supply.
The line filter would go to the AC side and capacitor to dc side. I can do both correct?
Thank you