Title :
A 460W Class-D output stage with adaptive gate drive
Author_Institution :
NXP Semicond., Nijmegen
Abstract :
Class-D amplifiers have largely replaced conventional class-AB amplifiers in many consumer applications such as television and home-theatre systems. The high efficiency of class-D amplifiers allows for providing a very high output power with a modest heat sinking. The audio amplifier market has a tendency towards ever higher output power. Consequently, class-D output stages are required to operate at ever higher voltage and current levels.
Keywords :
audio-frequency amplifiers; power amplifiers; SOI-based BCD process; adaptive gate drive; amplifier output power; audio amplifier; class-D output stage; heat sinking; power 460 W; Capacitors; DH-HEMTs; Driver circuits; Impedance matching; Logic; MOSFET circuits; Power MOSFET; Power generation; Pulse width modulation; Voltage;
Conference_Titel :
Solid-State Circuits Conference - Digest of Technical Papers, 2009. ISSCC 2009. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-3458-9
DOI :
10.1109/ISSCC.2009.4977503
