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The Reason Why Solar Junction Box Needs Diode

Jan 18, 2021Leave a message

The solar junction box is the junction box of solar cell modules. The solar cell module is composed of high-efficiency crystalline silicon solar cells, solar junction box ultra-white textured tempered glass, EVA, transparent TPT backplane and aluminum alloy frame. It has the characteristics of long service life and strong mechanical resistance to pressure.

Diodes are electronic components used for unidirectional current conduction. The battery panels generally charge the battery during the day, solar junction box and the voltage of the battery panel at night is lower than that of the battery. In order to prevent the battery from charging the solar panel at night and damaging the battery panel, solar junction box it is necessary Add an anti-reverse diode to prevent current from flowing from the battery to the solar panel.

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When choosing a diode, solar junction box you can't blindly pursue the expansion of current or the expansion of the reverse withstand voltage. The most important thing is the right. The junction box should be calculated and arranged according to the short-circuit current and open-circuit voltage of the component, solar junction box and the diode should be selected. The forward voltage drop of the diode is inversely proportional to the leakage current, so choosing a diode requires a balance. It is necessary to select the corresponding diode according to the current and voltage required by the corresponding component, solar junction box and consider what kind of diode chip to use.


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