Invention Grant
- Patent Title: Device for intrinsically safe redundant current supply of field devices
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Application No.: US14816082Application Date: 2015-08-03
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Publication No.: US09825458B2Publication Date: 2017-11-21
- 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: DE102014011719 20140806
- Main IPC: H02H9/00
- IPC: 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 a controllable voltage source in the redundant current supply units.
Public/Granted literature
- US20160043561A1 DEVICE FOR INTRINSICALLY SAFE REDUNDANT CURRENT SUPPLY OF FIELD DEVICES Public/Granted day:2016-02-11
Information query
