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EP0404993A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Current limiting DC converter

Assignee: Siemens AG
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Filing: 1989-06-30
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Granted: —
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Expires: 2009-06-30
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Abstract

Abstract Translated from German Gleichstromumrichter mit einem durch Einschaltimpulse leitend steuerbaren elektronischen Schalter und mit Strombegrenzung durch Reduzierung des Tastgrades oder Unterdrückung von Steuerimpulsen. Um ohne Erhöhung des Stromgrenzwertes auf die Unterdrückung von Steuerimpulsen übergehen zu können, wird die Dauer der Steuerimpulse gemessen. Der Umrichter eignet sich besonders zur Speisung von Lastwiderständen, bei denen die Gefahr eines niederohmigen Kurzschlusses besteht. DC converter with an electronic switch that can be controlled by switch-on pulses and with current limitation by reducing the duty cycle or suppressing control pulses. In order to be able to switch to the suppression of control pulses without increasing the current limit value, the duration of the control pulses is measured. The converter is particularly suitable for supplying load resistors where there is a risk of a low-resistance short circuit.

Inventors

  • 👤 Hans Dipl.-Ing. Niederreiter
  • 👤 Gerhard Dipl.-Ing. Stolz (Fh)

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 16:59
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33538; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/1213

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE2838009B1 Cited
FR2479590A1 Cited

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