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Solar MPPT circuit development

Other Parts Discussed in Thread: BQ2031

Hello I am new in solar development. I want to develop power supply using  solar panel with specs

Maximum power: 70Wp + / - 3%
Open circuit voltage: 22,50 V
Short circuit current: 4,40 A
I need constant 12V at output.  Any body can suggest me the reference design with MPPT or DC-DC converter. Thanks.
  • Hello Vishal,
    Thank you for using our Forum.

    TI has many reference designs that involve solar applications.
    This TI DESIGNS landing page will provide many to search from.
    www.ti.com/.../refdesignsearchresults.tsp

    Using " MPPT " as a keyword search produces many results.

    Perhaps this one will help?
    High Efficiency Synch Switch-Mode Charger Controller Solar Lithium Battery Charger Reference Design
    www.ti.com/.../TIDA-00049

    This application note provides some ideas on implementing MPPT.
    Simple MPPT-Based Lead Acid Charger Using bq2031
    www.ti.com/.../slva378a.pdf


    MPPT requires limiting load current on the solar panel to prevent its voltage from dropping.
  • Thanks EdWalker, It's solved my problem. You had provided me what I was searching for. Thank you really much. You have saved my lots of time.
    Thanks to TI once again for great reference design, and solving my problem.