Title :
A method of error correction for digital class D power amplifier
Author :
Yu, Zeqi ; Feng, Hui
Author_Institution :
Coll. of Electr. Eng., Henan Univ. of Technol., Zhengzhou, China
Abstract :
Because of the nonlinearity of digital PWM generator and the effect of power supply noise in power stage, the error is introduced into digital class D power amplifier. A method used to eliminate the error is presented in this paper, and it is easy to implement. Based on this method, a digital class D power amplifier is designed and simulated, the simulation results indicate this method can basically eliminate the error produced by digital PWM generator and power stage, and improve the performance of the system.
Keywords :
digital circuits; error correction; power amplifiers; digital PWM generator; digital class D power amplifier; error correction; power stage; Digital modulation; Error correction; Nonlinear distortion; Power amplifiers; Power generation; Power supplies; Pulse amplifiers; Pulse generation; Pulse width modulation; Space vector pulse width modulation;
Conference_Titel :
Microelectronics & Electronics, 2009. PrimeAsia 2009. Asia Pacific Conference on Postgraduate Research in
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-4668-1
Electronic_ISBN :
978-1-4244-4669-8
DOI :
10.1109/PRIMEASIA.2009.5397423
