The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 1998
Filed:
May. 17, 1996
Jean-Luc Lamarche, Mittelhausbergen, FR;
Guntram Rundel, Baienfurt, DE;
i f m electronic gmbh, Essen, DE;
Abstract
An electronic switching device which can be connected via an outside conductor to one pole of a voltage source and only via one other outside conductor to a terminal of a consumer, in which the other terminal of the consumer can be connected to the other pole of the voltage source, therefore a two-wire switching device, with a proximity indicator (1) which can be influenced from the outside, with an electronic switch (3), which can be controlled by the proximity indicator (1) via a switching amplifier (2), and with operating voltage supply circuit (4) for making available the operating voltage required by proximity indicator (1), and optionally by the switching amplifier (2) (=internal operating voltage), the operating voltage supply circuit (4) an having in-phase regulator (5) and proximity indicator (1) and the switching amplifier (2) being connected to the output of the in-phase regulator (5). While in the two-wire switching devices known from the prior art two power components are necessary, in the electronic switching device according to the invention only one power component is necessary, because the operating voltage supply circuit (4) has a shunt controller (6) in addition to the in-phase regulator (5). The input of the shunt controller (6) is connected to the output of in-phase regulator (5), the actuator (7) of shunt controller (6) is in series with electronic switch (3), and the proximity indicator (1) and switching amplifier (6) are also connected to the connection of actuator (7) of shunt controller (6) to electronic switch (3).