Title:
RING-SHAPED LED LAMP, LAMP STRING, AND CONTROL CIRCUIT THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/051663
Kind Code:
A1
Abstract:
A ring-shaped LED lamp, comprising at least three LED chips and at least three pins partially located within an encapsulation member. The LED chips are connected in series and have two terminal ends connected to form a closed loop, and the pins are led out from connections between the LED chips. A lamp string comprises at least one group of lamps and electrically conductive wires connected to multiple lamps, and each group of lamps comprises a plurality of the above-described ring-shaped lamps. Also provided is a control circuit applicable for the lamp string. The control circuit comprises an input apparatus, a microprocessor, an output circuit, and a lamp string interface connected to the output circuit. The microprocessor receives a signal from the input apparatus, and sends an I/O signal or PWM signal to the output circuit to trigger a voltage level change of the lamp string interface.
Inventors:
CHONG TITTSANG (CN)
Application Number:
PCT/CN2017/101555
Publication Date:
March 21, 2019
Filing Date:
September 13, 2017
Export Citation:
Assignee:
CHONG TITTSANG (CN)
International Classes:
H01L33/48; H05B44/00
Foreign References:
| CN206332046U | 2017-07-14 | |||
| CN102842573A | 2012-12-26 | |||
| CN205028918U | 2016-02-10 | |||
| CN201764319U | 2011-03-16 | |||
| CN102917505A | 2013-02-06 | |||
| KR20090096943A | 2009-09-15 |
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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