Radio transmission modules having intrinsic safety
US8805308B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 5, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Oct 5, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0416
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.