Title:
INTERFERENCE-FREE TRANSMISSION OF SIGNALS BETWEEN DIFFERENT EARTH POTENTIALS
Document Type and Number:
WIPO Patent Application WO/2020/120309
Kind Code:
A3
Abstract:
The invention relates to a coupler (1) for differential transmission of an analogue signal (3) coming from at least one transmitter (2) with a first earth potential (2a), via at least one first signal line (4a) and a second signal line (4b), to a receiver (5) with a second earth potential (5a), wherein the coupler (1) has a filter assembly (6) for the portions (3a, 3b) of the signal (3) being transmitted via the first signal line (4a) or via the second signal line (4b), wherein this filter assembly (6) is potential-free or uses the second earth potential (5a), and wherein the portions (3a', 3b') of the signal (3) filtered by the filter assembly (6) are brought together in a comparator (7) in order to form the signal (8) to be supplied to the receiver (5), and wherein the comparator (7) uses the second earth potential (5a). The invention also relates to a system (50) for signal transmission and a voltage transformer (100) comprising the coupler (1) and/or system (50).
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Inventors:
EBERLEIN EDWIN (DE)
FRIESE FALKO (DE)
FRIESE FALKO (DE)
Application Number:
PCT/EP2019/083961
Publication Date:
August 06, 2020
Filing Date:
December 06, 2019
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
International Classes:
H04L25/02; H03K17/18; H04L25/08
Foreign References:
| US5432817A | 1995-07-11 | |||
| US20110227641A1 | 2011-09-22 |
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