12 volt Charge controller (solar)?

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


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

Panel rating ?

Steve
Daniel Deacon (author)  steveastrouk6 years ago
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?
I think one still works

A
Daniel Deacon (author)  iceng6 years ago
how come?
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.
Daniel Deacon (author)  iceng6 years ago
im not talking about the solar cells there fine its just the charge controller
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