| 摘要 |
PROBLEM TO BE SOLVED: To inhibit increase of the number of parts when the temperature detection is carried out by a plurality of temperature sensing elements. SOLUTION: The temperature detection circuit 40 is provided with a first signal output circuit 42, a second signal output circuit 44 and a third signal output circuit 24. The first signal output circuit 42 is provided with a thermistor 54 provided with a resistance value varied corresponding to the sensed temperature and outputs a voltage signal corresponding to the temperature sensed by the thermistor 54. The second signal output circuit 44 is provided with a thermistor 56 provided with a resistance value varied corresponding to the sensed temperature and outputs a voltage signal corresponding to the temperature sensed by the thermistor 56. The third signal output circuit 24 is provided with two diodes D1, D2 and outputs the signal having the lower voltage of the signal outputted from the first signal output circuit and the signal outputted from the second signal output circuit. COPYRIGHT: (C)2004,JPO
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