A High Performance Open Loop All-digital Class-D Audio Power Amplifier using Zero Positioning Coding (ZePoC)

Mathis W, Schnick O. A High Performance Open Loop All-digital Class-D Audio Power Amplifier using Zero Positioning Coding (ZePoC). In: AES Convention 120. Audio Engineering Society; 2006. Paper 6695. Available from: https://aes.org/publications/elibrary-page/?id=13499

@inproceedings{Mathis2006_13499,
  author = {Mathis, Wolfgang and Schnick, Olaf},
  title = {{A High Performance Open Loop All-digital Class-D Audio Power Amplifier using Zero Positioning Coding (ZePoC)}},
  booktitle = {AES Convention 120},
  note = {Paper 6695},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13499}
}

TY  - CPAPER
TI  - A High Performance Open Loop All-digital Class-D Audio Power Amplifier using Zero Positioning Coding (ZePoC)
AU  - Mathis, Wolfgang
AU  - Schnick, Olaf
T2  - AES Convention 120
M1  - Paper 6695
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13499
PB  - Audio Engineering Society
LA  - en
AB  - Open loop all-digital Class-D amplifiers are uncommon due to the lack of the correcting feedback path leads to several problems resulting in high distortion compared to analog controlled class-D amplifiers. This paper shows that SB-ZePoC lowers switching frequency to 100 kHz. Therefore, these problems can be solved, so that it is possible to design an open loop all-digital class-D audio amplifier with total distortions below 0,01% in the whole listening-band (20 Hz-20 kHz) and an efficiency that reaches 90%. Results of a test-setup will be presented. The sonic performance will be demonstrated during the session.
ER  -