Sigma delta modulation is a widely used technique which is mainly applied to A/D or D/A converters. As described in an earlier paper, sigma delta modulation is also well-suited for audio power amplification with high efficiency. However, existing linear models do not accurately describe the behavior of sigma delta amplifiers. In this paper a linear model is presented which allows an accurate prediction of performance and stability. The model will be explained by a design example and verified by simulation and measurement results.
(See document for exact affiliation information.)
https://aes2.org/publications/elibrary-page/?id=6578
(444KB)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
