| 发明名称 |
METHOD AND APPARATUS FOR MAINTAINING THE VOLTAGE AT A CAPACITOR |
| 摘要 |
<p>A method and apparatus for controlling a process wherein a hold amplifier is used to maintain the charge on a capacitor, the charge on the capacitor representing the desired position of a control element. The charge on the capacitor is maintained by periodically connecting it to a reference voltage.</p> |
| 申请公布号 |
CA965144(A) |
申请公布日期 |
1975.03.25 |
| 申请号 |
CA19720143471 |
申请日期 |
1972.05.30 |
| 申请人 |
SHELL CANADA LIMITED |
发明人 |
SPAARGAREN, KLAAS;SNOEKS, JAN |
| 分类号 |
G11C11/24;G05B1/02;G05B21/02;G11C11/403;G11C11/56;G11C27/00;G11C27/02;H03L5/00 |
主分类号 |
G11C11/24 |
| 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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