Instability recovery method for sigma-delta modulators

Details Instability recovery method for sigma-delta modulators Instability recovery method for sigma-delta modulators

1997-05-01

1998-05-26

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

H03M 300

Patent

active

057573018

ABSTRACT:
A method for stabilize single-stage sigma-delta modulators is disclosed. The method of the present invention employs stability detectors to detect whether the modulator enters the unstable region or not. And internal signal paths that already exist in stable operation are used to recover a unstable modulator to stable region. In the first kind of embodiment, stabilization effect is supported by reduction of effective order. And in the second kind of embodiment, individual instability recovery in each stage in the modulator provide the necessary stabilization mechanism. The present invention can be applied to various configurations, such as multiple feedback and feedforward, and various application, like low-pass and band-pass system.

REFERENCES:
patent: 5012244 (1991-04-01), Wellard et al.
patent: 5248972 (1993-09-01), Karema et al.
patent: 5379039 (1995-01-01), Charaska et al.
patent: 5654711 (1997-08-01), Fujimori

Affiliated with

Also associated with

Rating

Instability recovery method for sigma-delta modulators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Instability recovery method for sigma-delta modulators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Instability recovery method for sigma-delta modulators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1966814