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12 volt Charge controller (solar)? Answered

hi i am wondering how to go about building a solar charge regulator i need some help and passably schematics
i have 2 broken charge controllers 

the parts i have salvaged 

11A20YR, LM324. IC x2
11YRD g4, CD40106BM. X2 IC
IRF3205, MT 1D4H. X6 MOS-FET
ALJ, D882, P63. X2 TRANSISTOR
X16, GF1200, YELLOW THING X2
C1115, JC817,KENTC, X2

few other parts that are on the board

7 Replies

user
steveastrouk (author)2011-07-22

It would be simpler to repair the broken controller than strip the parts off and redesign !!

Panel rating ?

Steve

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user

I have 2 solar panels hooked in parallel 1 15 watt other is 30 watt,
hmm nice idea how could i do that, they both broke by me disconnecting the battery I assume the open circuit voltage fried a component?

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iceng (author)Daniel Deacon2011-07-22
user
iceng (author)Daniel Deacon2011-07-23

A solar cell behaves as a resistor when being over powered which would happen when parallel arrays are left to stress each other.

My experience shows shorting the output does no electronic harm
except to the battery.

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user
Daniel Deacon (author)iceng2011-07-23

im not talking about the solar cells there fine its just the charge controller

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user

It would be a very crappy design that did that. Were you running into a battery then, or messing with a motor ?

First thing to do is look for a fried component.

Lets see some DECENT photos of the board, so I can get a rough idea what might be damaged.

Steve

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