公开(公告)号：AU2021211411A1

公开(公告)日：2022-08-04

申请号：AU2021211411

申请日：2021-01-20

Applicant: ROSEMOUNT INC

Inventor： HOFMEISTER SCOTT T ,  SKOW CODY J ,  KEMPKE ALLEN J ,  WIENHOLD NICHOLAS AARON ,  SCHNAARE THEODORE H

IPC: H02H9/00

Abstract: A wireless sensor network gateway (102) includes safe side circuitry (120), hazardous side circuitry (124) and isolation circuitry (122), which are supported by a housing (126). The safe side circuitry (120) includes a safe side power circuit (140), and a safe side data input/output (I/O) circuit (142). The hazardous side circuitry (124) includes a hazardous side power circuit (148), and a hazardous side data I/O circuit (152). The isolation circuitry (122) divides the safe side circuitry (120) from the hazardous side circuitry (124). The isolation circuitry (122) includes a power isolation circuit (154) that couples the safe side power circuit (140) to the hazardous side power circuit (148) and forms an intrinsic safety barrier between the safe side power circuit (140) and the hazardous side power circuit (148), and a data isolation circuit (156) that couples the safe side data I/O circuit (142) to the hazardous side data I/O circuit (152) and forms an intrinsic safety barrier between the safe side data I/O circuit (142) and the hazardous side data I/O circuit (152).

公开(公告)号：CA3066983A1

公开(公告)日：2019-01-03

申请号：CA3066983

申请日：2018-04-12

Applicant: ROSEMOUNT INC

Inventor： WIENHOLD NICHOLAS AARON ,  WYMAN MATTHEW DAVID ,  BRONCZYK ANDREW JAMES

IPC: H02J7/34 ,  G05B19/00 ,  G05F1/613

Abstract: A field device (100) for an industrial process includes device circuitry (106), a shunt circuit (126), a bulk supply (122), a charging power regulator (120), and a supplemental circuit (124). The device circuitry is configured to receive power and communicate data over a two-wire process control loop (104). The shunt circuit is configured to shunt an unused portion of the power to an electrical ground (128). The charging power regulator is configured to regulate an excess portion of the power to charge the bulk supply based on the unused portion. The supplemental circuit is powered by the bulk supply.