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Title:
SINGLE-PORT LED MODULE WITH ADJUSTABLE COLOUR AND TEMPERATURE, AND COLOUR AND TEMPERATURE ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2018/023998
Kind Code:
A1
Abstract:
Provided is a single-port LED module with adjustable colour and temperature, wherein only one pair of wiring terminals (V+, V-) is provided to introduce a drive power supply. The LED module comprises: a substrate, and LED chip groups A and B borne thereon. The chip group A comprises at least one string of LED chips, and each string has K1 LED chips; if the chip group A includes two or more strings of LED chips, the strings of chips are connected to each other in parallel; and a circuit of the chip group A is provided with a security unit for preventing an over-current so as to ensure that a current flowing through each string of LED chips does not exceed or is constantly at an allowable value. The chip group B also comprises at least one string of LED chips, and each string is formed by connecting K2 LED chips in series, K2 being greater than K1; and if the chip group B comprises two or more strings of LED chips, the strings of LED chips are also connected to each other in parallel. The chip group A and the chip group B are connected to each other in parallel, and the same drive power supply is introduced by means of the common wiring terminals (V+, V-). The LED module with adjustable colour and temperature is realized by means of a single port, thereby saving port resources.

Inventors:
PAN LIMING (CN)
WANG JIXIANG (CN)
Application Number:
PCT/CN2017/081160
Publication Date:
February 08, 2018
Filing Date:
April 19, 2017
Export Citation:
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Assignee:
SHENZHEN LIGHTSPOT ELECTRONICS TECH CO LTD (CN)
International Classes:
F21V23/00; F21K9/20; H05B44/00
Domestic Patent References:
WO2016039457A12016-03-17
Foreign References:
CN205160868U2016-04-13
CN106560643A2017-04-12
CN205979210U2017-02-22
CN205408247U2016-07-27
Attorney, Agent or Firm:
SHENZHEN RUIZHI PATENT AGENCY (CN)
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