Solar Charger

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#1 21669999 07 Oct 2013 05:09

Xombi Nash Xombi Nash

Anonymous

Post #1
21669999 07 Oct 2013 05:09

I want to design Microcontroller based Solar battery charge controller, in which i want to use
PIC16F785 MCU. Can anyone have suggestion for circuit design, how to start and what will be its circuit so it can properly.

I want to interface two LED for Indication of battery charging and discharge status.
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#2 21670000 09 Oct 2013 00:33

Syed Shadab Syed Shadab

Anonymous

Post #2
21670000 09 Oct 2013 00:33

You dont need a Microcontroller to make a solar battery charger, a simple 555-timer will do the job. I had designed a solar battery charger to charge a battery of 12 volts 7.5Ah. I am Posting the design which is in Proteus. There are two potentiometers to set the battery threshold voltage (i.e. Minimum voltage battery can discharge to & maximum voltage battery can charge upto).
Hope this will solve your problem!
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#3 21670001 19 Dec 2013 00:47

Suchithra ravikumar Suchithra ravikumar

Anonymous

Post #3
21670001 19 Dec 2013 00:47

I have designed the same using PIC MCU. I used buck boost technique for charging the battery. I will suggest u the circuit diagram. hope it will be useful for u.
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#4 21670002 19 Dec 2013 05:33

Xombi Nash Xombi Nash

Anonymous

Post #4
21670002 19 Dec 2013 05:33

Thanks for reply, but i have made it using 555 timer, but it is not efficient and having some drawbacks and limitations. I hope you are aware of it.
#5 21670003 19 Dec 2013 05:36

Xombi Nash Xombi Nash

Anonymous

Post #5
21670003 19 Dec 2013 05:36

hii,

Thanks for kind reply.
Yes i need your help. my Email: -shkm.ieee(_at_)gmail.com
I want to implement MPPT algorithm, i got a some info from interent but it has limitations in regard of solar panel wattage supports.
#6 21670004 20 Dec 2013 13:06

DAVID CUTHBERT DAVID CUTHBERT

Anonymous

Post #6
21670004 20 Dec 2013 13:06

Maximum solar panel output is obtained using MPPT (Maximum Power Point Tracking) control The PIC would be useful for implementing this.
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#7 21670005 21 Dec 2013 00:40

Suchithra ravikumar Suchithra ravikumar

Anonymous

Post #7
21670005 21 Dec 2013 00:40

HII,

I have send u Email regarding solar charger using MPPT algorithm check it.
#8 21670006 22 Dec 2013 22:52

Otto Sponring Otto Sponring

Anonymous

Post #8
21670006 22 Dec 2013 22:52

Nash,
This is a very open question if you just need a charger you would not need a micro and then the question is what battery type you want to support and power/voltage etc. Consider LiFePo4 battery for longer live. I can send you a charger circuit for 2 and 4 cell LFP battery.
The charging is better to be autonomous not involving a micro but again all depends what you are after.
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