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1. (WO2018120072) TOTAL HARMONIC DISTORTION (THD) CONTROLLED CLIP DETECTOR AND AUTOMATIC GAIN LIMITER (AGL)

Pub. No.:    WO/2018/120072    International Application No.:    PCT/CN2016/113634
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 31 00:59:59 CET 2016
IPC: H03F 1/32
H04R 3/04
Applicants: TEXAS INSTRUMENTS INCORPORATED
TEXAS INSTRUMENTS JAPAN LIMITED
Inventors: MADSEN, Kim Nordtorp
WAN, Xing
QIAN, Shun
Title: TOTAL HARMONIC DISTORTION (THD) CONTROLLED CLIP DETECTOR AND AUTOMATIC GAIN LIMITER (AGL)
Abstract:
The disclosed embodiments include an audio amplifier system (100) configured to provide a total harmonic distortion (THD) controlled clip detector (131) and an automatic gain limiter (AGL) solution (101) for a closed-loop amplifier (125). The audio amplifier system (100) is capable of maintaining high power output without hard distortion (i.e., hard clipping) for providing better acoustics, while preventing damage to the system (100).