Invention Grant
- Patent Title: Device for intrinsically safe redundant current supply of field devices
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Application No.: US14816076Application Date: 2015-08-03
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Publication No.: US09819181B2Publication Date: 2017-11-14
- Inventor: Frank Marks
- Applicant: ABB Technology AG
- Applicant Address: CH Baden
- Assignee: ABB SCHWEIZ AG
- Current Assignee: ABB SCHWEIZ AG
- Current Assignee Address: CH Baden
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: DE102014011723 20140806
- Main IPC: H02J1/10
- IPC: H02J1/10 ; H02J1/04 ; H02H9/00
Abstract:
A device is provided for intrinsically safe redundant current supply of field devices with a common current-limiting resistor in the mesh of the field device and with redundant current supply units. A current sensor can be provided in the mesh of the field device, the output signal of which sensor is connected to devices for controlling current or active current limiting in the redundant current supply units.
Public/Granted literature
- US20160043560A1 DEVICE FOR INTRINSICALLY SAFE REDUNDANT CURRENT SUPPLY OF FIELD DEVICES Public/Granted day:2016-02-11
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