Serial data communication device of air conditioner

Details Serial data communication device of air conditioner Serial data communication device of air conditioner

1997-08-25

1999-04-27

Hofsass, Jeffery A.

Communications: electrical

Systems

Selsyn type

34031006, 340538, 39520057, H04M 1104

Patent

active

058983619

ABSTRACT:
A serial data communication device of an air conditioner including: an outdoor microprocessor having data transmitting/receiving terminals which transmit/receive a predetermined data; an indoor microprocessor having data transmitting/receiving terminals which transmit/receive data to/from the outdoor microprocessor; a rectification part for converting an alternating current power to a predetermined level of a direct current power to thereby supply the direct current power to the indoor/outdoor microprocessors; an outdoor interface part connected between the data transmitting terminal of the outdoor microprocessor and a direct power output terminal of the rectification part, for isolating the rectification part and the outdoor microprocessor through a first insulation switching part and simultaneously for constituting a first communication line; and an indoor interface part for isolating the rectification part and the indoor microprocessor through a second insulation switching part and simultaneously for constituting a second communication line.

REFERENCES:
patent: 5528760 (1996-06-01), Nam
patent: 5528908 (1996-06-01), Bahel et al.

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