PWM regulator

The PWM regulators are the most used in off-grid photovoltaic systems. They can improve the charge of the battery. To complete the full charge, they separate the current provided by the panels and send it to the batteries in the form of pulses. These pulses are modulated (+ or- long, frequent + or-) by the accurate reading of the regulator to the battery terminals. This allows it to know the charge level.
The role of PWM controllers is not only limited to fully charge of the battery, they also help to limit sulfation plate batteries thanks to high frequency pulses.
There are several kinds of PWM controllers, some with basic functions and other more complex, are equipped with software that continuously manage the battery status.

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