Over-temperature protection by adaptive output power control

A. Bezooijen, van, R. Mahmoudi, A.H.M. Roermund, van

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)


Power amplifier transistors suffer from overheating when they operate under extreme conditions. To prevent destructive breakdown an adaptive output power control concept is proposed that makes use of the detected die temperature to limit the output power once a threshold level is crossed. Output power is limited by reducing the effective power control voltage and thereby avoids opposite actuation of the protection loop and that of the power control loop. For a supply voltage of 3.5 V and a nominal output power of 1.8 W the maximum die temperature is reduced from 143 degC to 112 degC when the output power is adaptively reduced from 32.1 dBm to 27.7 dBm for a VSWR of 4 and worst case mismatch phase
Original languageEnglish
Title of host publicationProceedings of the 9th European Conference on Wireless Technology 2006, 10-12 September 2006, Manchester, United Kingdom
Place of PublicationPicataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)2-9600551-5-2
Publication statusPublished - 2006
Event9th European Conference on Wireless Technology - Manchester, United Kingdom
Duration: 1 Sept 2006 → …


Conference9th European Conference on Wireless Technology
Country/TerritoryUnited Kingdom
Period1/09/06 → …


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