A Comparison of Phase-Shift Self- Oscillating and Carrier-based PWM Modulation for Embedded Audio Amplifiers

Conference object English OPEN
Huffenus , Alexandre; Pillonnet , Gaël; Abouchi , Nacer; Goutti , Frédéric;
  • Publisher: HAL CCSD
  • Subject: [SPI]Engineering Sciences [physics] | [ SPI ] Engineering Sciences [physics]

International audience; This paper compares two modulation schemes for Class-D amplifiers: Phase-Shift Self-Oscillating (PSSO) and Carrier-Based Pulse Width Modulation (PWM). Theoretical analysis (modulation, frequency of oscillation, bandwidth…), design procedure, and ... View more
  • References (9)

    [1] J.D. Martin, “Theoretical efficiencies of Class-D Power Amplifiers”, Proc. IEE., Vol . 117, pp. 1089- 1090, 1970.

    [2] J. Vanderkooy, “New Concepts in Pulse-Width Modulation”, presented at the 97th AES Convention, San Francisco, USA, 1994 Nov. 10-13.

    [3] M. Berkhout, “Class-D Audio Amplifiers in Mobile Applications”, IEEE Internationnal Synopsium on Circuit and Systems, pp. 1169-1172, May 2009.

    [4] K. Nielsen, “A Review and Comparison of Pulse Width Modulation (PWM) Methods for Analog and Digital Input Switching Power Amplifiers”, presented at the 102nd AES Convention, Munich, Germany, 1997 March 22-25.

    [5] P.J. Baxandall, “Transistor sine-wave LC oscillators,” Intern. Conv. On Transistors and Associated Semicon. Devices, IRE Proc. B, pp. 748-759, May 1959.

    [6] STMicroelectronics, TS4962 Datasheet.

    [7] T. Piessens, M. Steyaert, “Oscillator Pulling and Synchronisation Issues in Self-Oscillating Class D Power Amplifiers”, Proceedings of the 29th European Solid-State Circuits Conference, pp. 529- 532, Sept. 2003.

    [8] L. Soo-Hyoung et al., “A 2W, 92% efficiency and 0.01% THD+N Class-D audio power amplifier for mobile applications, based on the novel SCOM architecture”, Proceedings of the IEEE Custom Integrated Circuits Conference, Oct. 2004.

    [9] International Rectifier, Reference Design Kit.

  • Metrics
Share - Bookmark