PWM SOLAR CHARGE CONTROLLER

A solar charge controller is an electronic device used in off-grid and hybrid off-grid applications to regulate current and voltage input from PV arrays to batteries and electrical loads (lights, fans, monitors, surveillance cameras, telecom and process control equipment, etc.). The controller safely charges and maintains batteries at a high state of charge without overcharging. A good solar charge controller can extend battery life, whereas a poor quality charge controller can cause battery failure and which causes the entire off-grid system to shut down. Solar charge controllers are also commonly called solar charge regulators.

A solar charge controller is available in two different technologies, PWM and MPPT.

A PWM (Pulse Width Modulation) charge controller features a battery that is connected to the solar energy source via an electronic switch. When the battery reaches a full charge, the electrical current is gradually reduced until it arrives at a low-maintenance state (where it will then stay).

PWM solar charge controller adopts strong charge, balanced charge, floating charge three-stage charging mode. PWM charge controller solves the problem that the battery charge is not satisfied and the battery life is short