AP series 40a solar charge controller with water battery
The principle of mppt solar controller is: mppt control is generally accomplished through dc conversion circuit, the photovoltaic cell array is connected to the load through dc circuit, and the maximum power tracking device continuously detects the current and voltage changes of the photovoltaic array, and converts the dc according to its changes. The duty cycle of the pwm drive signal of the device is adjusted.
To charge the battery, the output voltage of the solar panel must be higher than the current voltage of the battery, if the voltage of the solar panel is lower than the voltage of the battery, the output current will be close to 0. Therefore, for safety, the peak voltage (Vpp) of the solar cell panel is about 17V when the solar cell panel is manufactured, which is set according to the reference when the ambient temperature is 25V. When it is very hot, the peak voltage Vpp of the solar panel will drop to around 15V, but on a cold day, the peak voltage Vpp of the solar energy can reach 18V.
It’s advanced max power point trackings solar charge controller, up 99% high transfer efficiency to minimizing energy loss. Intelligent LCD display with multiple functions. With DC output socket you could connect to the DC appliance together same capacity as solar panel. It could supply different type of DC load such as DC conditioner or DC fan DC freezer etc.
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