What is a MPPT Charge Controller?

02/19/2022

The most fundamental usefulness of a sun oriented power framework is solar panels gathering energy from the sun and putting away it in batteries so you can utilize it at whatever point you'd like. Be that as it may, you can't just interface your solar panels straightforwardly to your batteries and anticipate that they should charge. To take advantage of your sun powered chargers, you'll require a charge regulator to charge your batteries productively. The most productive sort of charge regulator is the greatest power point following or MPPT charge controller.

How about we investigate how they work and what benefits they give.

What is Maximum Power Point Tracking?

Before we dive into how MPPT charge controllers work, let’s explain how they get their name.

The voltage at which a solar panel produces the most power is called the maximum power point voltage. The maximum power point voltage varies depending on environmental conditions and the time of day.

MPPT charge controllers get their name because they monitor the solar panel and determine the maximum power point voltage for the current conditions. This function is called maximum power point tracking, or MPPT for short.

Tip: Refresh on Amps, Volts, & Watts and their differences.

What Is An MPPT Charge Controller? 

Solar panels and solar batteries have different ideal working voltages. Not just that, these voltages vacillate. A MPPT charge controller is a DC-DC converter that augments the effectiveness of a planetary group. It does this by streamlining the voltage match between the sun powered charger cluster and the batteries.

For instance, contingent upon the condition of charge, a 12-volt battery has an ostensible voltage that reaches between a little more than 10 volts and just shy of 13 volts. Moreover, the voltage expected to charge a 12-volt battery ranges somewhere in the range of 13.5 and 14.5 volts relying upon the charging stage.




Then again, the ideal result voltage of a sunlight powered charger shifts relying upon the board's temperature, season of day, how overcast it is, and other ecological variables. For example, under ideal circumstances, a 250-watt sunlight based charger might have an ideal working voltage of 32 volts. As the board warms up in the sun or on a sweltering day, the ideal voltage might drop to as low as 26 volts.

The appraised board voltage should be higher than the battery voltage to oblige for these voltage drops in the board and the expanded required battery charging voltage. Without a MPPT charge controller, this voltage differential prompts a great deal of squandered power.