Title:
LED CONTROL CIRCUIT, ELECTRONIC DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/221330
Kind Code:
A1
Abstract:
An LED control circuit, an electronic device and an electronic apparatus, belonging to the technical field of LED circuits. The LED control circuit is provided with a power supply end, a grounding end and a plurality of control signal output ends; according to a voltage difference between a voltage of the power supply end and a voltage of the grounding end, a level identification circuit 11 outputs a digital signal; and a decoding circuit 12 analyzes the digital signal to obtain control data of the present LED control circuit, and outputs a plurality of control signals to the plurality of control signal output ends according to the control data. The level identification circuit 11 outputs the digital signal only according to the voltage difference between the voltage of the power supply end and the voltage of the grounding end, so that the level identification circuit 11 does not need a reference voltage as a reference signal, thus omitting a reference circuit used for providing a reference voltage, simplifying a circuit, and saving the hardware cost.
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Inventors:
WANG WEI (CN)
HAN JING (CN)
HAN JING (CN)
Application Number:
PCT/CN2022/115852
Publication Date:
November 23, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
REALMAGIC SEMICONDUCTORS SHENZHEN CO LTD (CN)
International Classes:
H05B45/00; H05B45/30
Foreign References:
| CN105007657A | 2015-10-28 | |||
| CN101778507A | 2010-07-14 | |||
| CN104735879A | 2015-06-24 | |||
| US20130217347A1 | 2013-08-22 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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