发光二极管开路失效旁路开关及包含所述旁路开关的电路

By-pass switch for open-circuit failure of light emitting diode and circuit containing by-pass switch

Abstract

The utility model relates to a by-pass switch in the field of electricity, in particular to a by-pass switch for the open-circuit failure of a light emitting diode and a circuit containing the by-pass switch. The utility model is realized by the following technical scheme that: the by-pass switch for the open-circuit failure of the light emitting diode comprises an executing component, a triggering component and a compensating component, wherein the executing component is used for conducting a light emitting diode connected with the executing component in parallel during open-circuit failure, the triggering component is connected with the executing component in parallel and is also used for triggering the conduction of the executing component, and the compensating component is connected with the executing component in series and is also used for compensating a voltage-drop difference between the executing component and the light emitting diode. The difference of the voltage drop of the by-pass switch and the voltage drop of the light emitting diode is smaller than the difference of the voltage drop of a by-pass switch circuit in the background technology and the voltage drop of a light emitting diode.
本实用新型涉及电学领域旁路开关,特别是发光二极管开路失效旁路开关及包含所述旁路开关的电路。本实用新型是通过以下技术方案得以实现的:发光二极管开路失效旁路开关,它包括用于在与之并联的发光二极管开路失效时导通的执行器件,与执行器件并联并用于触发执行器件导通的触发器件,与执行器件串联并用于弥补执行器件与发光二极管之间压降差的弥补器件。此种旁路开关压降与发光二极管压降之差小于背景技术中旁路开关电路压降与发光二极管压降之差。

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    Publication numberPublication dateAssigneeTitle
    CN-102573215-AJuly 11, 2012浙江美晶科技有限公司, 谢可勋Light-emitting diode open-circuit-failure bypass switch and circuit comprising the bypass switch
    CN-102573215-BJanuary 07, 2015谢可勋, 浙江美晶科技有限公司Light-emitting diode open-circuit-failure bypass switch and circuit comprising the bypass switch