DocumentCode :
3414229
Title :
Protection of audio amplifiers based on temperature measurements in power transistors
Author :
Krabbenborg, B.
Author_Institution :
Philips Semicond. Nijmegen, Netherlands
fYear :
2004
fDate :
15-19 Feb. 2004
Firstpage :
374
Abstract :
An audio amplifier IC has been realized with protection circuitry based directly upon power-transistor temperature measurements. In contrast to current- or voltage-based measurements, this method gives optimal protection independent of supply voltage (9-28V), load (2-16Ω BTL), ambient temperature and heat sinking.
Keywords :
audio-frequency amplifiers; power bipolar transistors; semiconductor device measurement; short-circuit currents; temperature measurement; audio amplifier IC; audio amplifier protection; fault conditions; four-channel audio amplifier; lateral PNP transistor; optimal protection; power transistors; protection circuitry; short circuit; temperature measurements; thermal model; Circuits; Impedance; Power amplifiers; Power dissipation; Power measurement; Power transistors; Protection; Pulse amplifiers; Temperature measurement; Temperature sensors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International
ISSN :
0193-6530
Print_ISBN :
0-7803-8267-6
Type :
conf
DOI :
10.1109/ISSCC.2004.1332750
Filename :
1332750
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3414229
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