| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a temperature measuring system with improved accuracy of a digital temperature detection signal. <P>SOLUTION: The temperature measuring system includes: a thermistor 21 for outputting a temperature detection signal of a voltage according to a temperature; and an AD converter 19 for performing analog-to-digital conversion of the temperature detection signal output by the thermistor; and imports the digitized temperature detection signal into a microcomputer 15. The temperature measuring system further includes: a reference circuit 14 for generating a reference voltage using a power supply fed from a battery; a first regulator 16 for generating an operation voltage of the thermistor 21 using the reference voltage; and a second regulator 13 for generating an operation voltage of the AD converter using the reference voltage. <P>COPYRIGHT: (C)2013,JPO&INPIT |
