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What Is Difference Between PWM And MPPT Solar Charge Controllers?
- Aug 27, 2018 -

What is difference between PWM and MPPT Solar Charge Controllers?

A simple comparison between the two most used types of solar charge controllers.

Solar charge controllers are devices that regulate the rate of electric current that has to be added to a solar panel batter, in order to prevent overchanging or overvoltage. Since panels in solar street lights need to be charged, these solar charge controllers are essential for a long-lasting, best-quality installation. But there is no universal solar charge  controller and it is important to choose the adequate device for each application.

The two main types of solar charge controllers are the PWM and the MPPT. While PWM is essentially a switch that connects a solar array to the battery, the MPPT is more sophisticated, since  it will adjust its input voltage to harvest the maximum power from the solar array and then transform this power to supply the varying voltage requirement of the battery plus load.