As the demand for renewable energy solutions continues to grow, solar power has emerged as a viable and sustainable option for both residential and commercial applications. In this regard, PWM solar controllers play a crucial role in optimizing solar energy usage, ensuring maximum efficiency, and extending the lifespan of solar systems.
Pulse Width Modulation (PWM) is a method of digitally encoding the level of an analog signal. Through the use of high-resolution counters, the duty cycle of the square wave is modulated to encode the level of a specific analog signal.
The solar controller can also be said to be a solar charge and discharge controller. It is a controller with two charging modes, one is MPPW charging mode and the other is PWM charging mode.
The PWM solar photovoltaic controller uses three-stage charging modes: balanced charge, strong charge, and floating charge.
The cost of the MPPT controller is higher than that of the PWM controller, even several times that of the PWM controller, but the charging efficiency of the MPPT controller is higher,
An inverter with a high rated output capacity can carry more distribution loads, but when the load of the inverter is not purely resistive, that is, when the power is lower than 1,