发明名称 |
PROCESS DEVICE WITH SWITCHING POWER SUPPLY |
摘要 |
A process field device for coupling to a two wire process control loop includes a field device circuitry and a switching regulator to power the circuitry. A series regulator provides a regulated supply voltage to the switching regulator. A noise filter reduces the amount of noise from the switching regulator which enters the two wire process control loop. |
申请公布号 |
EP1735670(B8) |
申请公布日期 |
2016.12.21 |
申请号 |
EP20050732573 |
申请日期 |
2005.03.30 |
申请人 |
Rosemount Inc. |
发明人 |
HUISENGA, Garrie, David;JOHNSON, James, Alan;JONGSMA, Jonathan, Michael |
分类号 |
G05B19/042;G05B23/00;G05F1/40;H02J7/34;H02M1/14 |
主分类号 |
G05B19/042 |
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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