A Novel Approach to High Speed Digital Pulse-formers Based on Ring Oscillators for PWM and Class-D Applications

Streitenberger M, Bresch H, Kaszubiak J, Schindler T. A Novel Approach to High Speed Digital Pulse-formers Based on Ring Oscillators for PWM and Class-D Applications. In: AES Convention 112. Audio Engineering Society; 2002. Paper 5632. Available from: https://aes.org/publications/elibrary-page/?id=11406

@inproceedings{Streitenberger2002_11406,
  author = {Streitenberger, Martin and Bresch, Helmut and Kaszubiak, Jens and Schindler, Thomas},
  title = {{A Novel Approach to High Speed Digital Pulse-formers Based on Ring Oscillators for PWM and Class-D Applications}},
  booktitle = {AES Convention 112},
  note = {Paper 5632},
  year = {2002},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11406}
}

TY  - CPAPER
TI  - A Novel Approach to High Speed Digital Pulse-formers Based on Ring Oscillators for PWM and Class-D Applications
AU  - Streitenberger, Martin
AU  - Bresch, Helmut
AU  - Kaszubiak, Jens
AU  - Schindler, Thomas
T2  - AES Convention 112
M1  - Paper 5632
PY  - 2002
DA  - 2002/04/06
UR  - https://aes.org/publications/elibrary-page/?id=11406
PB  - Audio Engineering Society
LA  - en
AB  - In this paper, a new concept for a high speed, high resolution digital pulse-former is presented. A digital pulse-former basically maps each input data word (sample) into a binary pulse of corresponding width. Such binary pulse-length modulated signals are incorporated in digital class-D amplifiers and pwm applications. In our approach a synchronous digital counter converting the "rough" part of the input sample is combined with a ring oscillator serving as "fine" counter. This hybrid configuration yields a drastically increased resolution while maintaining moderate clock rates. Results of a first discrete implementation of this concept are discussed.
ER  -