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Title:
SLAVE DEVICE COMMUNICATION CIRCUIT, SLAVE DEVICE, ELECTRICAL EQUIPMENT, AND MASTER-SLAVE DEVICE COMMUNICATION CIRCUIT AND METHOD
Document Type and Number:
WIPO Patent Application WO/2019/210689
Kind Code:
A1
Abstract:
The present disclosure relates to the technical field of communications, and disclosed thereby are a slave device communication circuit, a slave device, electrical equipment, a master-slave device communication circuit and a method. The slave device communication circuit comprises a slave device universal asynchronous transceiver transmitter and an optocoupler output conversion circuit, the slave device universal asynchronous transceiver transmitter comprising a slave device signal transmitting end; a first input end of the optocoupler output conversion circuit is connected to a power supply, and a second input end of an output photoelectric coupler is connected to the slave device signal transmitting end; and a first output end of the output photoelectric coupler is connected to the power supply, a second output end of the output photoelectric coupler is connected to an input end of a relay, and an output end of the relay is connected to a master device signal receiving end of a master device communication circuit. According to the present disclosure, the influence of an unusually high low electrical level due to transmission ratio characteristics of an optocoupler may be eliminated, so that communication reliability is improved, and thus high and low electrical levels may be recognized by a master device side chip under various situations.

Inventors:
LIU, Wenbin (WEST JINJI ROAD, QIANSHANZHUHAI, Guangdong 0, 519070, CN)
WANG, Xing (WEST JINJI ROAD, QIANSHANZHUHAI, Guangdong 0, 519070, CN)
HE, Xiaolin (WEST JINJI ROAD, QIANSHANZHUHAI, Guangdong 0, 519070, CN)
LI, Yang (WEST JINJI ROAD, QIANSHANZHUHAI, Guangdong 0, 519070, CN)
Application Number:
CN2018/120598
Publication Date:
November 07, 2019
Filing Date:
December 12, 2018
Export Citation:
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Assignee:
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI (WEST JINJI ROAD, QIANSHANZHUHAI, Guangdong 0, 519070, CN)
International Classes:
F24F11/54; F24F11/88; H03K19/0175
Foreign References:
CN108534298A2018-09-14
CN208154732U2018-11-27
CN104776559A2015-07-15
CN105160862A2015-12-16
CN202135150U2012-02-01
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (8th Floor, Vantone New World Plaza 2 Fuchengmenwai Street, Xicheng District, Beijing 7, 100037, CN)
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