Hi guys,
I replicate a HP power supply for 30v 5A . when I tested the power supply the output ripple was around 20mvP-P , but when I connect a dc motor to the power supply the ripple gone to around 500mvP-P but for the other load it works fine. can sombody tell me what is the reason. I also used diode for reverse polarity protection.
regards
N.Baskaran