Title:
APPARATUS AND METHOD FOR REDUCING JITTER IN LOW LIGHT OF LIGHT SOURCE, AND LAMP
Document Type and Number:
WIPO Patent Application WO/2023/070812
Kind Code:
A1
Abstract:
An apparatus and method for reducing jitter in low light of a light source, and a lamp. The apparatus comprises an LED light source, an inductor L, a current control module (1), a switch K1, a signal control module (2), and a current acquisition module (3); a first end of the switch K1 is used for inputting voltage Vin , and a second end of the switch K1 is connected to a first end of the inductor L; a second end of the inductor L is connected to a positive electrode of the LED light source, and a negative electrode of the LED light source is grounded; a first end of the current control module (1) is connected to the second end of the switch K1 and the first end of the inductor L, and a second end of the current control module (1) is grounded; the current acquisition module (3) is used for measuring current in the apparatus, and is connected to the signal control module (2) to send a current signal to the signal control module (2) according to the measured current; the signal control module (2) is further connected to the switch K1 and is used for controlling, according to the received current signal or a preset time threshold, the switch K1 to be switched off or switched on.
Inventors:
JIANG WEIKAI (CN)
Application Number:
PCT/CN2021/133897
Publication Date:
May 04, 2023
Filing Date:
November 29, 2021
Export Citation:
Assignee:
GUANGZHOU HAOYANG ELECTRONICS CO LTD (CN)
International Classes:
H05B45/00; H05B45/325; H05B45/36; H05B45/59
Foreign References:
| CN113015286A | 2021-06-22 | |||
| CN107801269A | 2018-03-13 | |||
| CN107070213A | 2017-08-18 | |||
| CN207783204U | 2018-08-28 | |||
| CN105009690A | 2015-10-28 | |||
| US11013081B1 | 2021-05-18 |
Attorney, Agent or Firm:
GUANGZHOU RUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
Download PDF: