rdiaz
Junior Member level 2
Hi, I'm building a power supply with +24V, +5V and +/-12V. I already have a 3 secondary transformer with 22V, 7V and 14-0-14V (peak voltage in these 3 cases). I'm using 7805, 7824, 7812 and 7912 for DC regulation. I was using 47uF in 7824's input, the other regulators's input I've used 10uF capacitors. I've checked also the GND-I-O configuration from the 7912, and used 104 ceramic capacitors besides the input capacitors, and also in the output. 7824 and 7805 are working properly, but I have 0.2V aproximately from 7812 and 1912. Also I've tried adding 1K resistance in the output of each regulator but still doesn't changes. I don't know what else to try! please any suggestions?