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Title:
COMPATIBLE LED TUBE LAMP HAVING CURRENT LEAKAGE PROTECTION FUNCTION
Document Type and Number:
WIPO Patent Application WO/2017/035721
Kind Code:
A1
Abstract:
Provided is a compatible LED tube lamp having a current leakage protection function, comprising: an outer casing, an LED light string, and a driving circuit, wherein the driving circuit comprises: an input determination matching circuit (11), a first control circuit (12), a current leakage protection circuit (13), a rectification and filtering circuit (14), a constant-current switching power circuit (15), and an output filtering control circuit (16). The input determination matching circuit (11) is connected to two ends of the outer casing. The first control circuit (12) is connected to the input determination matching circuit (11). The current leakage protection circuit (13) is further connected to the two ends of the outer casing. The rectification and filtering circuit (14) is connected to the current leakage protection circuit (13). The constant-current switching power circuit (15) is connected to the rectification and filtering circuit (14). The output filtering control circuit (16) is connected to the constant-current switching power circuit (15) to receive a signal outputted by the constant-current switching power circuit (15), filter the same, and then drive, according to the filtered signal, the LED light string. Implementation of the compatible LED tube lamp having the current leakage protection function has the following advantageous effects: complying with safety certification of a conventional lamp, being capable of passing leakage current and voltage withstand tests, and reducing labor costs and time costs.

Inventors:
YANG HUASHENG (CN)
LAN HONGHAI (CN)
Application Number:
CN2015/088532
Publication Date:
March 09, 2017
Filing Date:
August 31, 2015
Export Citation:
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Assignee:
SHENZHEN EVERICH TECH CO LTD (CN)
International Classes:
F21V23/00; H05B37/02
Foreign References:
CN202721866U2013-02-06
CN101883453A2010-11-10
CN204539546U2015-08-05
CN103968285A2014-08-06
GB2466031A2010-06-09
US20140125242A12014-05-08
Attorney, Agent or Firm:
BEIJING UTC LIANFENG INTELLECTUAL PROPERTY AGENCY(GENERAL PARTNERSHIP) (CN)
北京联瑞联丰知识产权代理事务所(普通合伙) (CN)
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