In solar light systems, MPPT is the abbreviation of Maximum Power Point Tracking, which is translated into Chinese as "maximum power point tracking". It is an efficient power management technology used to optimize the energy conversion efficiency between solar panels (photovoltaic panels) and batteries.

The core role of MPPT

The output power of solar panels will change with environmental factors such as light intensity and temperature, and there is a maximum power point (MPP) in its current-voltage (I-V) curve. The role of the MPPT controller is to track this point in real time to ensure that the solar panel always generates electricity at the highest efficiency, thereby improving energy utilization (20%~30% higher than ordinary controllers).

Working principle of MPPT

Real-time monitoring: The controller detects the voltage and current of the solar panel and calculates the current output power.

Dynamic adjustment: Change the impedance matching through the DC-DC circuit (such as Buck/Boost) to make the solar panel work at the maximum power point.

Advantages of MPPT in Solway solar lights

Intelligent battery management

▲ Intelligent charging management, MPPT charging, constant voltage equalization charging, greatly extending the battery life

▲Intelligent energy management, ensuring that the battery works in a shallow charge and discharge state, greatly extending the battery life

Intelligent drive LED management

▲ Light control function, automatically lighting the LED at night and automatically turning off the LED at dawn

▲ Multi-segment control

▲ Dimming function, each time period can control the output of different power

Flexible parameter setting function

▲ Support 2.4G, infrared communication

Complete protection function

▲Battery reverse connection protection

▲Solar panel reverse connection protection

▲Prevent the battery from discharging to the solar panel at night

▲Battery undervoltage protection

▲ Battery exit undervoltage protection

▲ LED output short circuit protection

▲ LED output open circuit protection

▲ IP68 Protection level

Notes

Cost-effectiveness trade-off: Low-power solar lights (such as garden lights) may be more economical to use PWM, while high-power systems such as street lights require MPPT.

Pseudo-MPPT: Some low-priced products claim to support MPPT but the actual algorithm is simple, so you need to choose a reliable brand.

If you need to know more about the specific circuit implementation or selection suggestions of MPPT, you can add the application scenario!