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:
Aug. 12, 2014
Filed:
Oct. 05, 2011
Axel Schubert, Berlin, DE;
Axel Schubert, Berlin, DE;
MSA Auer GmbH, Berlin, DE;
Abstract
Described herein are arrangements and methods for achieving intrinsic safety for a radio transmission module. One aspect provides an apparatus for transmitting signals in an explosion-hazardous area with intrinsic safety, including: a radio transmission module having a high frequency module and an electronic control circuit disposed on a printed circuit board, said electronic control circuit being configured to control a voltage supply to the high frequency module in response to one or more of: output voltage of the high frequency module exceeding a predetermined voltage value, as independently measured by at least two independently operating hardware circuits; and a temperature of a heat-conducting potting compound potted over heat generating components disposed on the printed circuit board exceeding a predetermined temperature value, as independently sensed by at least two independently operating temperature circuits. Other embodiments are described.