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EP0143375A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Transformerless push-pull amplifier

Assignee: Deutsche Thomson Brandt GmbH
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Filing: 1984-11-08
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Granted: —
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Expires: 2004-11-08
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Abstract

Abstract Translated from German Schaltungsanordnung zur automatischen Ruhestromeinstellung bei komplementären Gegentaktendstufen. Circuit arrangement for automatic quiescent current setting with complementary push-pull output stages. Der Ruhestrom wird in einem Zweig der Endstufe gemessen, während im anderen Zweig der Laststrom fließt. Aus dem Ergebnis wird eine Spannung abgeleitet, welche die Vorspannung der Endstufe in der Weise steuert, daß bei steigendem Ruhestrom die Vorspannung vermindert wird und umgekehrt. The quiescent current is measured in one branch of the output stage, while the load current flows in the other branch. A voltage is derived from the result, which controls the bias of the output stage in such a way that the bias is reduced as the quiescent current increases and vice versa.

Inventors

  • 👤 Rudolf Dr. Ing. Koblitz

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 16:20
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/30; H03F1/307; H03F3/00; H03F3/30; H03F3/3069; H03F3/3071

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