发明名称 |
SOLENOID VALVE CONTROL DEVICE |
摘要 |
Disclosed is a solenoid valve control device provided with: a first relay (20) connected in series to a drive coil of a solenoid valve (30) between output terminals (11a, 11b) of a rectifier circuit (11); a photocoupler (31) configured to output a voltage of a GND level when a current equal to or greater than a predetermined level is flowing in a contact (20a) in the first relay (20) and output a voltage of a V5 level when the current equal to or greater than a predetermined level does not flow in the contact (20a) in the first relay (20); and an integration circuit (40) configured to smooth an output voltage Va1 from the photocoupler (31). When an output voltage (Vb1) from the integration circuit (40) is not greater than a first threshold value (Vt1), a microcomputer (1a) detects that the first relay (20) is on state.
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申请公布号 |
US2012292543(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201013515972 |
申请日期 |
2010.10.20 |
申请人 |
KAMADA KAZUYA;HIROTA KAZUYA;NAKAI KENJI;RINNAI CORPORATION |
发明人 |
KAMADA KAZUYA;HIROTA KAZUYA;NAKAI KENJI |
分类号 |
F16K31/02 |
主分类号 |
F16K31/02 |
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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