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:
Jul. 22, 2008
Filed:
Mar. 30, 2006
Stefan Morbe, Hasbergen, DE;
Michael Bothe, Munster, DE;
Stefan Morbe, Hasbergen, DE;
Michael Bothe, Munster, DE;
FRIWO Mobile Power GmbH, Ostbevern, DE;
Abstract
The invention under consideration refers to a circuit arrangement for a switch-mode power supply, wherein the switch-mode power supply has a primary side, which can be connected to a supply voltage, and a secondary side, which can be connected to a consumer, and wherein the circuit arrangement comprises a primary-sided switch, a control circuit for controlling the primary-sided switch and additional active primary-sided components. Furthermore, the invention under consideration also refers to a switch-mode power supply with an active primary-sided circuit arrangement of that type. In order to specify an improved circuit arrangement that overcomes the disadvantages of the known solutions and that makes it possible to assemble a switch-mode power supply in miniaturised form in a manner that is particularly simple and economical while still complying with applicable safety standards, the control circuit is formed by a first integrated semiconductor chip and the primary-sided switch and the additional components are integrated in at least one additional semiconductor chip, said semiconductor chip being separate from the control circuit and being arranged on a single circuit carrier shared with the control circuit.