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> What Does This Pcb Do?, I want to know what this PCB does...
chemhari999
Posted: April 09, 2015 03:41 pm
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I would like to know what this PCB does. It is from my AC power supply. I am not from electronics background, but can under stand the basics of it. I am unable to attach the image but will do that shortly. Here are the circuit elements


rectifier----capacitor----IC 7812----capacitor
round 35V,470uF | |
bridge | |
| | |
Transformer Relays Input from time relay
EI35-220V |
| |
Output Output
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chemhari999
Posted: April 09, 2015 03:45 pm
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QUOTE (chemhari999 @ April 09, 2015 07:41 pm)
I would like to know what this PCB does. It is from my AC power supply. I am not from electronics background, but can under stand the basics of it. I am unable to attach the image but will do that shortly. Here are the circuit elements


rectifier----capacitor----IC 7812----capacitor
round      35V,470uF                    |          |
bridge                                        |          |
  |                                              |          |
Transformer                          Relays      Input from time relay
EI35-220V                                  |
    |                                            |
Output                                  Output

How to add pic??
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BlueVanACD2005
Posted: April 09, 2015 03:45 pm
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The 7812 is a 12V regulator..

Not really sure what to make of the 'text schematic?' above though.
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BlueVanACD2005
Posted: April 09, 2015 03:46 pm
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You need to upload your image to Photobucket or other hosting site and link to it.
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chemhari999
Posted: April 09, 2015 04:10 pm
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http://s938.photobucket.com/user/chemhari9...rd.gif.html?o=0

This post has been edited by chemhari999 on April 09, 2015 04:17 pm
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chemhari999
Posted: April 09, 2015 04:12 pm
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chemhari999
Posted: April 09, 2015 04:13 pm
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uploaded the image
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chemhari999
Posted: April 09, 2015 04:14 pm
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Thanks
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Colt45
Posted: April 09, 2015 06:32 pm
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Everything except the relays is just standard linear power supply... then presumably the relays are controlled by something to supply 12V to... something.


--------------------
>]:::|-
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deth502
Posted: April 09, 2015 08:38 pm
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could be switching line voltage as well. the 12v could power whatever sensor circuits there are to activate the relays, and have the relay switching the line voltage to turn something on.
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