The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 1995
Filed:
Nov. 17, 1993
Peter Preller, Munchen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A blocking-oscillator switched-mode power supply for sinusoidal current consumption includes a transformer having a primary winding. A smoothing capacitor is connected to the primary winding. A bridge rectifier is connected to the smoothing capacitor. A semiconductor switching element is connected to the primary winding for the clocked application of an alternating voltage, being rectified by the bridge rectifier and smoothed by the smoothing capacitor, to the primary winding. A control device is connected to the semiconductor switching element for triggering the semiconductor switching element. A current pump is connected to the smoothing capacitor and to the bridge rectifier for receiving current from the bridge rectifier during a turn-on phase of the semiconductor switching element and outputting a charged current to the smoothing capacitor during a blocking phase of the semiconductor switching element.