Development of a Digital Amplifier for Car Use

Taura K, Tsuji M, Ishida M, Nakada T. Development of a Digital Amplifier for Car Use. In: AES Convention 115. Audio Engineering Society; 2003. Paper 5963. Available from: https://aes.org/publications/elibrary-page/?id=12446

@inproceedings{Taura2003_12446,
  author = {Taura, Kenichi and Tsuji, Masayuki and Ishida, Masayuki and Nakada, Tsuyoshi},
  title = {{Development of a Digital Amplifier for Car Use}},
  booktitle = {AES Convention 115},
  note = {Paper 5963},
  year = {2003},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12446}
}

TY  - CPAPER
TI  - Development of a Digital Amplifier for Car Use
AU  - Taura, Kenichi
AU  - Tsuji, Masayuki
AU  - Ishida, Masayuki
AU  - Nakada, Tsuyoshi
T2  - AES Convention 115
M1  - Paper 5963
PY  - 2003
DA  - 2003/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12446
PB  - Audio Engineering Society
LA  - en
AB  - We have developed a digital amplifier for car use. The major problems of conventional digital amplifiers are lack of the ability to reject the ripple and noise on the car power line, and the EMI (electro-magnetic interference). We have developed a novel feedback system for digital amplifiers to solve mainly the supply voltage ripple problem. By using a prototype with a feedback system, we have confirmed that it gives enough supply voltage ripple rejection for car audio systems. We also confirmed that the feedback system could contribute to reduce the EMI by relaxing the requirements to the switching stage operation, while keeping low distortion of an audio output.
ER  -