Patent · US Active

Voltage control for an output transistor of a signal output stage

US9300218B2 · kind B2 · utility

0Cited by

1References

21Claims

0Family size

Assignee

PHOENIX CONTACT GMBH & CO. KG · DE

Inventors

Heinz Meier · Hohenhausen, DE
Joerg Blanke · Lemgo, DE

Key dates

Filing date	Dec 20, 2011
Grant date	Mar 29, 2016
Priority date	—
Expiry date	Nov 17, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG08C25/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a signal (feed) separator for dead-zero or live-zero measurement signals. The signal (feed) separator has a primary-side (feed) input, a secondary-side output, a direct-current transformer for transferring primary-side measurement input current, an output stage for providing a secondary-side measurement output current, and an auxiliary energy feed-in for supplying the primary side and for supplying the secondary side. The auxiliary voltage of the auxiliary energy feed-in is controlled on the secondary side by a control device with the aid of a measuring device in such a way that the power loss of the output stage is substantially independent of a load connected in the operating state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.