EP0176069A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
High-pass filter with amplifier
Assignee: Siemens AG
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Filing: 1985-09-23
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Granted: —
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Expires: 2005-09-23
Abstract
Abstract A capacitor (C) connected between the emitters of a difference amplifier stage decouples the two transistors (T1, T2) of the difference amplifier up to a cutoff frequency. Changes in the common-mode signal can be picked off at the terminals of the capacitor (C) and the amplified high-frequency difference signals can be picked off at the load resistors (R1, R2) of the high-pass filter and further processed. In comparison with conventional circuits having the same function, only one frequency-determining capacitor (C) is required and there is less load on the capacitor. <IMAGE>
Inventors
- 👤 Wilhelm Dr. Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/34; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45076; H03F3/4508; H03F3/45098; H03H11/04; H03H11/12; H03H11/1213; H03F2200/00; H03F2200/219; H03F2203/00; H03F2203/45; H03F2203/45202; H03F2203/45256; H03F2203/45458; H03F2203/45464; H03F2203/45471; H03F2203/45496; H03F2203/45612; H03F2203/45702
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References Cited (Backward Citations)
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