Patent · US Expired

Circuit arrangement for the control of a bistable relay

US4257081A · kind A · utility

38Cited by

5References

22Claims

0Family size

Assignees

Matsushita Electric Works, Ltd. · JP
SDS-Electro GmbH · DE

Inventors

Hans Sauer · Bamberg, DE
Wolf Steinbichler · Bad Feilnbach, DE
Heinz Ritter · Schongau, DE
Sepp Antonitsch · Otterfing, DE

Key dates

Filing date	Oct 19, 1978
Grant date	Mar 17, 1981
Priority date	—
Expiry date	Oct 19, 1998

Classification

Technology area (CPC H)Electricity
CPC primaryH01H47/226
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Circuit arrangements for the control of a bistable relay having a capacitor connected in series with its excitation winding, in which the series connection of coil and capacitor is connected to excitation voltage for the excitation of the relay and simultaneous charging of the capacitor, and, upon absence of excitation voltage, is short-circuitable through a semiconductor switch having its output circuit parallel-connected with the series connection of coil and capacitor, whereby the relay switches back to its starting position.

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