Voltage regulator for solar panel

Discussion in 'The Projects Forum' started by sirajuddin, Oct 1, 2014.

  1. sirajuddin

    Thread Starter New Member

    Sep 30, 2014
    Hi. I want solar penal volteg stabilizer circuit.
  2. wayneh


    Sep 9, 2010
    You've hijacked an old thread. Maybe a mod will come along and give you your own.

    Can you provide more details about that PV panel? If the loaded voltage is really only 12V, then it should be fine for that motor. But it might be able to hold the voltage higher than 12V and cause too much current in the motor. Can't tell without more detail.

    You could tell for yourself. Just hook it up and watch the voltage on the motor as the panel receives direct sunlight. If the voltage is more than ~14V or so, then you need something to bring it down.
  3. donpetru

    AAC Fanatic!

    Nov 14, 2008
    First should be clarified as follows:
    1). What is the nominal voltage of the solar panel? 12Vdc 10A ??? If so, and I am sure that is so, then what you want to power with this voltage? Somehow a DC motor?
    2). If it is a DC motor, which is voltage and its power of this DC motor?
    Some possible solutions:
    - if the load solar panel is a DC motor, then the power DC motor must be less than the power solar panel. In this case you must use a converter between load solar panel and solar panel. This converter can be of type DC-DC or DC-AC, depending on the consumer (for example, for DC motor you must use DC-DC converter). For a long-lasting converter operation will be equipped with a set of batteries;
    - if the solar panel load is a resistor, the power of the resistor can be equal to the power of solar panel and the ohm value of the resistor will be chosen appropriately.
    sirajuddin likes this.