Title:
LOW-DROPOUT LAMP STRIP CIRCUIT BOARD AND SINGLE-ENDED POWER SUPPLY LAMP STRIP USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/031251
Kind Code:
A1
Abstract:
Provided is a low-dropout lamp strip circuit board, comprising: a circuit board body (10); a power source line (20) arranged on the circuit board body (10) in the lengthwise direction of the circuit board body (10), wherein the head end or the tail end of the power source line (20) can be electrically connected to an external driving power source, and the power source line (20) can be connected to an external LED lamp set (50); and a power supplementing line (30) arranged on the circuit board body (10) in the lengthwise direction of the circuit board body (10), the head end of the power supplementing line (30) being connected to the head end of the power source line (20), and the tail end of the power supplementing line (30) being connected to the tail end of the power source line (20). The power supplementing line (30) can shunt part of a current at the head end of the power source line (20) to the tail end of the power source line (20), so that a dropout voltage generated by a head end portion of the power source line (20) due to its own resistance is reduced, and the voltage difference between the head end and the tail end of the power source line (20) is reduced, thereby facilitating avoiding the problem of the brightness of the LED lamp set (50) at a tail end portion of the circuit board body (10) being reduced; and there is no need to provide two driving power sources, the costs are relatively low, and the use is convenient.
Inventors:
JIANG ZHEN (CN)
HUANG YIYI (CN)
HUANG YIYI (CN)
Application Number:
PCT/CN2019/104919
Publication Date:
February 25, 2021
Filing Date:
September 09, 2019
Export Citation:
Assignee:
IHOME LIGHTING CO LTD OF ZHONGSHAN (CN)
International Classes:
F21S4/00
Foreign References:
| CN204272422U | 2015-04-15 | |||
| US20190174609A1 | 2019-06-06 | |||
| CN109655766A | 2019-04-19 | |||
| CN201651954U | 2010-11-24 |
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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