Patent · US Active

Circuit assembly

US11190170B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

PHOENIX CONTACT GMBH & CO. KG · DE

Inventors

Elmar Schaper · Lügde, DE
Markus Rohs · Steinheim, DE

Key dates

Filing date	Dec 18, 2018
Grant date	Nov 30, 2021
Priority date	—
Expiry date	Dec 18, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2009/544
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit assembly includes a first signal branch connecting a signal connection to an electrical load via a semiconductor switch and a second signal branch connecting the signal connection to the electrical load via a relay. When a sensor detects a polarity change in an electrical signal within a test time interval, a controller may close the semiconductor switch at a first signal time such that electrical energy is supplied to the electrical load, actuate the relay at a second signal time after the semiconductor switch has been closed, and open the semiconductor switch after the relay has been closed such that electrical energy is supplied to the electrical load solely via the second signal branch.

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