Traditional photovoltaic modules are usually equipped with Schottky bypass diodes in the module junction box to cope with the hot spot effect caused by obstruction in series systems. At present, the mainstream photovoltaic modules adopt a three string cell structure, where each string of cells is composed of multiple photovoltaic cells connected in series and parallel. Each string of battery cells is electrically connected through a junction box, which integrates a bypass diode protection circuit. Under normal operating conditions, the bypass diode is in a reverse bias cutoff state; When the component is obstructed or malfunctioning, the diode conducts forward, forming a bypass channel to bypass the photovoltaic panel, ensuring that the efficiency of the entire string is not affected by partial obstruction or abnormality of the photovoltaic panel during connection.

When an ideal diode conducts in the forward direction, power consumption is lower and temperature rise is smaller. By reversing the cutoff, lower leakage and longer lifespan can be achieved