Title:
DIMMING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/221139
Kind Code:
A1
Abstract:
The present invention provides a dimming circuit, including a signal transmission port, the input terminal of the signal transmission port is used to receive dimming signals from different dimming controllers, the output terminal sends the dimming signals to the signal receiving circuit; the signal receiving circuit includes a current limiting circuit and the voltage regulator tube D6, the input terminal of the current limiting circuit receives the dimming signal and makes the dimming signal constant current, then outputs the constant-current dimming signal to the voltage regulator tube D6 through the output terminal, uses the voltage regulator tube D6 to detect the high and low level signals in the dimming signal and outputs them to the MCU detection circuit; the MCU detection circuit dims the light source to be dimmed according to the received high and low level signals. The dimming circuit can not only effectively meet the accuracy requirements of DALI2.0 signal transmission, and can also effectively expand the dimming function of the wall switch, that is, realizing the use of touch dim signal for dimming.
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Inventors:
LIANG CHUAN (CN)
LUO MAOFENG (CN)
LUO MAOFENG (CN)
Application Number:
PCT/CN2020/086788
Publication Date:
November 05, 2020
Filing Date:
April 24, 2020
Export Citation:
Assignee:
SUZHOU OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
OPPLE LIGHTING CO LTD (CN)
International Classes:
H05B45/00
Foreign References:
| CN108684119A | 2018-10-19 | |||
| CN108289358A | 2018-07-17 | |||
| CN110267409A | 2019-09-20 | |||
| US4246494A | 1981-01-20 | |||
| CN102017806A | 2011-04-13 |
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)
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