The function of the PCB
![]()
2016/7/7 7:42:13
There is a PCB from my AC power supply. Here are the circuit elements for your reference:
rectifier----capacitor----IC 7812----capacitor
round 35V,470uF | |
bridge | |
| | |
Transformer Relays Input from time relay
EI35-220V |
| |
Output Output
francois.jacob.hello
2017/1/1 23:56:38
Everything except the relays is just standard linear power supply. Then presumably the relays are controlled by something to supply 12V to something.
Joshua Mulcahy
2016/11/17 2:03:13
What I know is that the IC 7812 is a 12V regulator.
jluisdrv
2016/8/17 18:59:43
It could be switching line voltage as well. the 12v could power whatever sensor circuits there are to activate the relays.
servimatec
2016/8/10 5:58:45
If you can upload an image, it will be better for us to answer your question.
giovanni.ortali
2016/7/9 7:42:13
Bookmarked.Really helpful.