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:
Mar. 16, 1982
Filed:
Aug. 13, 1980
Rudolf Schierjott, Germering, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
The invention relates to an arrangement for interference suppression in electronic circuits. A system is disclosed for electromagnetically shielding electronic devices without mains separation at the input side and which generate high-frequency noise voltages, particularly converter circuits with shielded inputs and outputs electrically separated by transformers and which use filter circuits arranged at the input and output sides. A large-surface printed circuit having surface-wide electrodes on both surfaces is provided between the shielded circuit portion at the mains side and the shielded circuit portion at the output side of the circuit to be shielded. The one electrode of the printed circuit is connected to the shield at the mains side and its other electrode is connected to the device ground allocated to the shield at the output side.