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Old 06-15-2011, 08:36 PM
sudheer9133 sudheer9133 is offline
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Join Date: May 2011
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Default need the help in hardware for solar MPPT using perturb and observe


im doing the project on MPPT for solar cells using perturb and observe method . in this im using the 12v solapanel and it has 0.4 amp current . i m boosting the voltage to 24 v . i had taken the 30mh inductor and 0.01 pf capacitor and the mosfetswitch which is controlled by the PIC 18F2550 micro controller. i want to control the switching by duty cycle.

im not geting the 24v at the very poor in constructing the hardware.can anyone help me plz...ur help will be apprreciated....

thank you
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Old 06-15-2011, 09:05 PM
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SgtWookie SgtWookie is offline
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Without your schematic and source code being posted, we won't be of much help - just a lot of guessing.

However, 30mh is a VERY large inductor, and 0.01pF is less capacitance than you would get with typical parasitic capacitance - it's really too small of a value to measure without an expensive material analyzer ($15,000 - $30,000 USD).

Posting inaccurate values will not help either.
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If you have a question, please start a thread/topic. I do not provide gratis assistance via PM nor E-mail, as that would violate the intent of this Board, which is sharing knowledge ... and deprives you of other knowledgeable input.
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Old 06-16-2011, 06:29 PM
sudheer9133 sudheer9133 is offline
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Default need help regarding my project

thanks a lot for ur reply...i dont know how to calculate and which values for the components is use for my circuit ...can you please help me how to calculate the component values for the desired output for my project....below is my project diagram and suggest me with your tips

thank you..
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