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Electric leakage protection circuit, protection method and lighting circuit applying same

A leakage protection and circuit technology, applied in emergency protection circuit devices, lamp circuit arrangements, lighting devices, etc., can solve the problem of no leakage protection circuit, and achieve the effect of improving safety

Pending Publication Date: 2019-12-03
JOULWATT TECH INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the input power is generally AC, and there is no leakage protection circuit compatible with AC input and DC input

Method used

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  • Electric leakage protection circuit, protection method and lighting circuit applying same
  • Electric leakage protection circuit, protection method and lighting circuit applying same
  • Electric leakage protection circuit, protection method and lighting circuit applying same

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Embodiment Construction

[0022] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0023] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0024] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in a relatively simplified form and use inaccurate scales to facilitate and clearly assist the purpose of illustrating the embodiments of the prese...

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Abstract

The invention provides an electric leakage protection circuit, a protection method and a lighting circuit applying the same. When the input voltage is DC voltage, a load switch is turned on or the load is enabled. When the input voltage is AC voltage, whether the load input end leaks electricity is judged. If the load input end leaks electricity, the load switch is controlled to be turned off or the load is controlled not to be enabled. If there is no electric leakage at the load input end, the load switch is turned on or the load is enabled. The DC input is compatible, and the electric leakage protection function can be realized and the safety in the load disassembly and assembly process can be improved.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to a leakage protection circuit, a protection method and a lighting circuit using the same. Background technique [0002] During the installation of the load, due to the possibility of partial connection during the installation process, if the human body accidentally touches it at this time, it is easy to get an electric shock and affect the operation safety. For example, in the field of lighting, lamps are divided into two types: single-ended input and double-ended input. Single-ended input actually sets the AC input connectors at the same end, while double-ended input separates them at both ends of the lamp. Since many lamp holders still retain the double-terminal input interface, when replacing the original lamp tube, the double-terminal input lamp tube is generally used, so the double-terminal input lamp tube still has a large market. [0003] However, especially in the case of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/32H05B37/02H05B37/03
CPCH02H3/325
Inventor 何婉玥周逊伟
Owner JOULWATT TECH INC LTD
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