Title:
DUAL VOLTAGE LINEAR LED LOAD MATCHING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/151101
Kind Code:
A1
Abstract:
A dual voltage linear LED load matching circuit comprises five loads (11 to 15), a switch circuit (2), and three control units (3 to 5), wherein one or more of a third load (13), a fourth load (14), and a fifth load (15) can be short-circuited. A first load (11), the fifth load (15), and a third control unit (5) are connected in series to form a first branch. The fourth load (14), a second control unit (4), and a second load (12) are connected in series to form a second branch. The first branch and the second branch are connected in parallel at two ends of an input voltage source. One end of the third load (13) is connected to the second control unit (4) by means of a first control unit (3). The other end of the third load (13) is connected to one end of the switch circuit (2). An intermediate connection end between the first control unit (3) and the fifth load (15) is connected to the other end of the switch circuit (2). The load matching circuit switches between different topologies according to operation scenarios of a first rated operating voltage (V1) and a second rated operating voltage (V2), thereby achieving load matching for two voltages.
Inventors:
TAO DONGYI (CN)
LIU MINGLONG (CN)
LIU MINGLONG (CN)
Application Number:
PCT/CN2019/083214
Publication Date:
July 30, 2020
Filing Date:
April 18, 2019
Export Citation:
Assignee:
SUZHOU FEIDAXU MICRO ELECTRONICS CO LTD (CN)
International Classes:
H05B44/00
Foreign References:
| CN109618467A | 2019-04-12 | |||
| CN206775772U | 2017-12-19 | |||
| CN104115562A | 2014-10-22 | |||
| CN208369916U | 2019-01-11 | |||
| CN107969051A | 2018-04-27 | |||
| CN103889111A | 2014-06-25 | |||
| US20080143266A1 | 2008-06-19 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY LTD. (CN)
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