| ??? 07/27/04 22:25 Read: times |
#74994 - RE: Under-loaded SMPS Responding to: ???'s previous message |
Santanu Roy said:
I am using normal computer SMPS (as used in PC)
http://www.8052.com/forum/read.phtml?id=74853 Michael Neary said:
I think I understand that you are now using one SMPS for each sign, and that a sign consumes (3A/5) or 600 mA. Be careful that the SMPS is not underloaded. Some SMPS don't regulate well when the load is less than 5% of rating. 600mA is almost certainly too small a load for the 5V output of a PC power supply; and note that (some) PC power supplies also require a minimum load on (some of) the other outputs... |
