发明名称 |
FLUIDIC GAS METER |
摘要 |
PROBLEM TO BE SOLVED: To surely initialize an ASIC by preventing a power on resetting function of the ASIC from becoming inoperative when a power supply voltage to the ASIC incorporated in a sensor rises moderately as a result of chattering when lead wires of a power supply battery are soldered. SOLUTION: Lead wires 4 and 5 of the battery 3 are soldered to terminal pines 6 and 7. A voltage of Fig. (b) is impressed between VDD-VSS of a microcomputer 1 by the chattering at the soldering time.τis a period of the chattering. A voltage at an output port (1) steeply rises after a constant time T, thereby supplying electricity to a VDD terminal of the sensor 2. The ASIC incorporated in the sensor 2 surely carries out the power on resetting function.
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申请公布号 |
JP2002116067(A) |
申请公布日期 |
2002.04.19 |
申请号 |
JP20000311408 |
申请日期 |
2000.10.12 |
申请人 |
TOKYO GAS CO LTD;OSAKA GAS CO LTD;TOHO GAS CO LTD;AICHI TOKEI DENKI CO LTD |
发明人 |
NUKUI KAZUMITSU;SAKAI KATSUTO;SATO SHINICHI;OKADA SHUICHI;KIMURA YUKIO;SATO TAKAHITO;HORI ITSURO;OHASHI MASAKI |
分类号 |
G01F1/20;(IPC1-7):G01F1/20 |
主分类号 |
G01F1/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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