Feldvorrichtung, Spannungsumsetzungsschaltung und Rückkopplungsregelung

Details

Veröffentlichungs-Nr.

EP3089342

Aktenzeichen

EP16167222

Anmeldetag

27. April 2016

Veröffentlichung

20. Oktober 2021

Erteilung

20. Oktober 2021

Rechtsraum

EP

IPC

H02M3/07

Abstract

The invention relates to a field device (8) comprising a voltage conversion circuit (1) being adapted to regulate the respective voltages of at least a high voltage rail (21), a medium voltage rail (22), and a low voltage rail (23), said voltage conversion circuit (1) comprising a charge pump being adapted to transfer electric charge between the rails (21, 22, 23, 24) by periodically switching at least one capacitor (37, 38, 39), wherein the circuit is adapted to transfer electric charge at a switching frequency of more than 100 kHz or more than 200 kHz and said capacitors (31, 32, 33, 34, 37, 38, 39) each have a value below 500 nF or below 100 nF or below 60 nF. Furthermore, the invention relates to a field device (8) comprising an electronic control unit (9), a digital feedback control and a positioner comprising such a field device.

Anmelder

Firma

Foxboro Eckardt Gmbh

Land

🇩🇪 Deutschland

Fachgebiete