Patent EP0432280A1 successfully refreshed from Google Patents.
EP0432280A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Interface between two electrical circuits operating under different supply voltages
Assignee: Siemens AG
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Filing: 1989-12-04
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Granted: —
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Expires: 2009-12-04
Abstract
Abstract An interface between two electrical circuits (I, II) operating at different operating voltages (UB, UV), the input level (UR) of the receiving circuit (II) proportionally tracking the fluctuating operating voltage (UB) of the transmitting circuit (I). The output signal (Ue) of the transmitting circuit (I) is compared with the input level (UR) in a comparator which is formed by a transistor (T). Depending on the connection of the output signal (Ue) and of the input level (UR) to the transistor (T), an inverting or non-inverting interface circuit having few inexpensive components and requiring little space is produced. <IMAGE>
Inventors
- 👤 August Dipl.-Ing. Kammerl
- 👤 Ernst Dipl.-Ing. Niedermeier
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:35
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/0175; H03K19/018; H03K19/01806; H03K19/003; H03K19/00369; H03K19/00376
Claims Analysis
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References Cited (Backward Citations)
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