Title:
電子機器
Document Type and Number:
Japanese Patent JP6790662
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic apparatus, in which a master unit and a slave unit communicate with each other by interrupting an electric current supplied from a power supply part for communication to a closed loop, capable of notifying a master unit with the power supply part for communication of a request of current supply from a slave unit without such a power supply part for communication while current supply from the power supply part for communication is being stopped, thereby stopping current supply from the power supply part for communication to suppress generation of wasteful power consumption of power supply for communication when communication is not required.SOLUTION: Indoor equipment 1 establishes a short circuit in a communication wire and an N line for connecting the indoor equipment 1 with outdoor equipment 3 through a relay 18 and runs an electric current through a second closed loop from the communication wire to the N line, an AC power supply 4, an input terminal 31b and a current output terminal 31c of a power supply part 31 for communication, an outdoor equipment communication unit 40 and the communication wire, thereby transmitting, to an outdoor equipment control unit 30, a current request signal for request of current supply from a power supply part 31 for communication.SELECTED DRAWING: Figure 1
Inventors:
Shinichiro Harada
Mayu Ohno
Mayu Ohno
Application Number:
JP2016186618A
Publication Date:
November 25, 2020
Filing Date:
September 26, 2016
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
H04Q9/00; F24F11/46
Domestic Patent References:
| JP2013133985A | ||||
| JP2012107817A | ||||
| JP2013139892A |
Foreign References:
| US20150001962 | ||||
| CN105159146A |