发明名称 |
VALVE CONTROL APPARATUS AND FLOW VOLUME CONTROLLER |
摘要 |
<p>A valve control apparatus including a stepping motor coupled to a valve and a motor control unit for controlling the stepping motor is provided. The motor control unit includes a motor control section for applying drive pulses to the pulse motor, a counting section for counting the number of drive pulses applied to the pulse motor, a voltage-drop detecting section for detecting a voltage drop of a drive power supply for the motor control section, and a writing section for writing a count from the counting section in a nonvolatile memory if the voltage-drop detecting section detects the voltage drop.</p> |
申请公布号 |
EP2017513(A1) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20070742922 |
申请日期 |
2007.05.08 |
申请人 |
SURPASS INDUSTRY CO., LTD. |
发明人 |
USHIGUSA, YOSHIHIRO;NAKAMURA, ATSUTOSHI |
分类号 |
F16K31/04;F16K37/00;G05D7/06;H02P8/42 |
主分类号 |
F16K31/04 |
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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