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Patent Searching and Data


Title:
DISCHARGE INDICATOR LIGHT CONTROL CIRCUIT AND LITHIUM BATTERY POWER SUPPLY PROTECTION BOARD THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/169541
Kind Code:
A1
Abstract:
A discharge indicator light control circuit and a lithium battery power supply protection board thereof, for use in solving the technical problem of adverse effects on the existing lithium battery management system caused by not turning on taillights by means of high impedance. The indicator light control circuit comprises a weak current switch (SW4), an LED drive module (CT2), and an LED switch (SW3). The weak current switch (SW4) and the LED drive module (CT2) are connected to a lithium battery control module (CT1). A loop is formed between the LED switch (SW3) and a discharge indicator light (LOAD2), and a battery set (BY). The LED drive module (CT2) is connected to the LED switch (SW3). The discharge indicator light control circuit controls a main current discharge loop and a small current discharge loop, separately for effectively turning off an LED lamp. Current loops are used in parallel, which has no effect on the main current loop.

Inventors:
YAO QIZHEN (CN)
Application Number:
CN2018/078081
Publication Date:
September 12, 2019
Filing Date:
March 06, 2018
Export Citation:
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Assignee:
SHENZHEN DA LI SHEN TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
CN103368246A2013-10-23
CN205104181U2016-03-23
CN104062515A2014-09-24
US5327068A1994-07-05
Attorney, Agent or Firm:
BEIJING TINGLI PATENT FIRM (ORDINARY PARTNERSHIP) (CN)
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