Circuit Breaker for a Solar Module
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Accused Products
Abstract
A circuit breaker for a solar module, wherein a plurality of solar cells working in normal operation and when shaded are connected in series. At least one controlled electrical switch element serves as a bypass element and is connected in parallel with its contact gap to a plurality of solar cells. A supply circuit provides a control voltage for controlling the control electrode of the bypass element. An isolating circuit blocks the voltage applied to the contact gap of the bypass element in the normal operation and switches the voltage that is applied to the contact gap to the supply circuit when at least one solar cell is shaded.
156 Citations
52 Claims
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1-23. -23. (canceled)
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24. A protective circuit device for a solar module, with which a plurality of solar cells, some of which operate in normal operation and some of which at the same time operate in the case of shading, are connected in series, comprising
at least one controllable electrical switch element serving as a bypass element, whose current path may be connected in parallel to the plurality of solar cells, a supply circuit for preparing a control voltage for activating the control electrode of the bypass element, and a separating circuit for blocking the voltage, lying across the current path of the bypass element in normal operation, to the supply circuit, and for switching through the voltage lying across the current path of at least one solar cell in the case of shading, to the supply voltage.
Specification