The charge controller for wind energy source is operated as: blocking reverse current, preventing overcharge, control set poi nets vs. temperature and control set points vs. Battery type. In wind generator, the reverse current is controlled by using one kind of semiconductor diode. The diode used for blocking reverse current is called a “blocking diode”.
The overcharging of the battery can be prevented by using pulse width modulation (PWM) controller. The ideal set points for charge controllers depend on the types of the Batteries. Some controllers have a means to select the type of battery.