The function of the PCB
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7/7/2016 7:42:13 AM
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
1/1/2017 11:56:38 PM
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
11/17/2016 2:03:13 AM
What I know is that the IC 7812 is a 12V regulator.
jluisdrv
8/17/2016 6:59:43 PM
It could be switching line voltage as well. the 12v could power whatever sensor circuits there are to activate the relays.
servimatec
8/10/2016 5:58:45 AM
If you can upload an image, it will be better for us to answer your question.
giovanni.ortali
7/9/2016 7:42:13 AM
Bookmarked.Really helpful.