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.