Title:
LEAKAGE PROTECTION CIRCUIT FOR DOUBLE-ENDED POWER LED LAMP TUBE
Document Type and Number:
WIPO Patent Application WO/2019/085153
Kind Code:
A1
Abstract:
A leakage protection circuit for a double-ended power LED lamp tube, comprising a rectification circuit (20) and a main circuit (30), wherein the main circuit (30) comprises a voltage detection circuit (330), a current detection circuit (310) and a logic control module (320); the voltage detection circuit (330) detects a voltage of the main circuit (30); the logic control module (320) compares the magnitude of the voltage of the main circuit (30) and that of a pre-set voltage, and enables an output of the main circuit (30) when the voltage of the main circuit (30) is greater than the pre-set voltage; then, the current detection circuit (310) detects a current of the main circuit (30); and the logic control module (320) compares the magnitude of the current of the main circuit (30) and that of a pre-set current, and disables the output of the main circuit (30) when the current of the main circuit (30) is less than the pre-set current, thereby effectively avoiding the risk of electric shocks, and improving the usage security of a double-ended power LED lamp tube.
Inventors:
LIU ZIANG (CN)
Application Number:
PCT/CN2017/115275
Publication Date:
May 09, 2019
Filing Date:
December 08, 2017
Export Citation:
Assignee:
BRAVOLED LIGHTING MFG CO LTD (CN)
International Classes:
H05B44/00; H02H3/32; H05B45/50
Foreign References:
| CN206280769U | 2017-06-27 | |||
| CN105960055A | 2016-09-21 | |||
| CN206272897U | 2017-06-20 | |||
| US9380231B2 | 2016-06-28 | |||
| CN106224805A | 2016-12-14 |
Attorney, Agent or Firm:
DHC IP ATTORNEYS (CN)
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