New Technique Xnd18 Sm74611kttr 30A40V Solar/PV Smart Bypass Diode Used in Solar Junction Box Better Than Schottky Diode

Bypass Diodes are connected in photovoltaic arrangements for the protection of such cells that are
completelyunder the solar light and working properly from such cells that are not working or not in the solar
light.The principal fact of the power failure of the solar cell is the shading, that reduced the quantity of the
light coming to the light. Shading can be due to some tree, wall of the house, or any other building. If the
shading remainson some cells of the panel there will be less power generation through this panel. So how
can we protect a photovoltaic cell, panel or even a full array from the destructive effects of partial or full
shading. One simple and effective way to protect photovoltaic cells from against the destructive effects of cell
shading is to connect what is called a Bypass Diode across each PV cell of a series-connected string. Bypass
diodes are connected externally and in reverse parallel with a PV cell to provide an alternative electrical path
for the generatedcurrent to flow as it cannot flow through the cell when shaded. This helps preserve the
performance of the series string by restricting the reverse bias voltage generated across any partially shaded
cell and hence reduce the electrical power which can be dissipated by the cell.

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