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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    Thanks for your detailed description but I am planning to build the system for 3kW so, I will have enough current to supply at motor starting. And the main reason to remove the battery is cost problems. Is there any other solution that you can suggest without using a battery?And forgive me but I did not understand your explanation about IR2110. I consider it as a MOSFET driver, so its job is to drive the MOSFETs, how does it matter what load is there at the output of the MOSFET? And charge pump's job is to give gate pulse to high side MOSFET with respect to the source voltage. So even if we have 300 volts at VS terminal ( High side source and low side drain), charge pumop would work perfectly to give 12-15 volts of pulse above that. Please let me know if you think I am wrong. Thanks.

    The charge pump of IR2110 does not care about the vs voltage. CHarge pump's job is to consider vs voltage as a reference and create a voltage at HO referenced to that (VS) voltage. So even if the battery is 48V and solar panels are 100 V , it will not have 52 volts across it. It will have only VCC voltage across the capacitor which you give to the 3rd pin. I dont see any reason why a MOSFET driver should change its working depending on the load. IR2110 will not be a problem.

    The charge pump of IR2110 does not care about the vs voltage. CHarge pump's job is to consider vs voltage as a reference and create a voltage at HO referenced to that (VS) voltage. So even if the battery is 48V and solar panels are 100 V , it will not have 52 volts across it. It will have only VCC voltage across the capacitor which you give to the 3rd pin. I dont see any reason why a MOSFET driver should change its working depending on the load. IR2110 will not be a problem.

    The power will be about 3 kW just enough for one home.

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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    I am designing a Solar Inverter without battery. I will have a separate battery for driver circuit and I would charge it with a dedicated battery charger and not by using Solar panels. Now the question is if I really need MPPT? Technically, I dont. Even without MPPT my circuit would work perfectly if I take a supply from Solar panels and Buck Boost it to a constant voltage that would appear at the input of the inverter which would convert it to ac power. I am designing MPPT(buck) before the main buck converter just to get the maximum power that is available at the input side of MPPT (buck) to the main buck. So this MPPT buck's job is just to give whatever maximum power it can give from Panels to the main Buck. If I dont have MPPT, the power at the input of the buck will not be the maxi...see more »I am designing a Solar Inverter without battery. I will have a separate battery for driver circuit and I would charge it with a dedicated battery charger and not by using Solar panels. Now the question is if I really need MPPT? Technically, I dont. Even without MPPT my circuit would work perfectly if I take a supply from Solar panels and Buck Boost it to a constant voltage that would appear at the input of the inverter which would convert it to ac power. I am designing MPPT(buck) before the main buck converter just to get the maximum power that is available at the input side of MPPT (buck) to the main buck. So this MPPT buck's job is just to give whatever maximum power it can give from Panels to the main Buck. If I dont have MPPT, the power at the input of the buck will not be the maximum power all the time. This, of course is a test product. I would like to check how much difference of power do I get from two methods.If you have any other suggestion, you are most welcome.

    Yes the version works perfectly.

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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    I wish to use use this with another buck circuit to drive an inverter. I am not using battery in my system. But still for the safety precautions I will put a diode before Q2 diode.

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  • ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)

    I could not figure out how to use IR2104 so I used a pic 16f684 for PWM generation and IR2110. Circuit works perfectly. Thanks.

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