| 摘要 |
PROBLEM TO BE SOLVED: To transmit information more accurately.SOLUTION: An air conditioner control device includes a remote controller (72) to which an alternating current is supplied from a secondary side of a first transformer (52); a full-wave rectification circuit (63) which is connected to a secondary side of a second transformer (54); and a processor (67) to which a current rectified by the full-wave rectification circuit (63) is supplied. One end of an output side of the full-wave rectification circuit (63) is connected to one end of the secondary side of the first transformer (52). The remote controller (72) has switches (92A, 92B, 92C, 92D) connected to the secondary side of the first transformer (52), and transmits to the processor (67) information indicating states of the switches (92A, 92B, 92C, 92D) by amplitudes of AC voltages on signal lines (78A, 78B, 78C, 78D) connecting the remote controller (72) to the processor (67).SELECTED DRAWING: Figure 2 |
