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wind solar hybrid controller
PWM Controller 2020-05-09 08:51:27

Early solar controllers were PWM. This kind of electrical structure is simple. The controller consists of a power main switch, a capacitor and a drive and protection circuit. The output voltage is controlled by the PWM duty ratio of the switch tube.


The PWM controller is connected with only one switch between the solar array and the battery panel. As the battery is gradually filled and the battery voltage rises, the PWM controller will gradually reduce the amount of electricity supplied to the battery, and the photovoltaic output will be output according to the maximum power differently.  PWM controller, with battery charge and discharge management function, can prevent battery overcharge and over discharge.


Since only one switch is connected between the solar module of the PWM controller and the storage battery, and there is no inductive voltage dividing device in the middle, the voltage of the components is about 1.2-2.0 times of the voltage of the storage battery when designing, for example, for 24V storage batteries, the input voltage of the components is between 30-50V, each string can only be equipped with one component, for 48V storage batteries, the input voltage of the components is between 60-80V, and each string can only be equipped with two components.

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