Analysis and design of an adaptive multi-loop controlled two winding buck/boost regulator
Abstract
Small signal low frequency linear average model is derived for a multi-loop controlled two-winding buck/boost converter employing average techniques and the describing function method. The model reveals that a well-designed multi-loop control can provide a second-order zero adaptive to output filter parameter changes due to component tolerances, temperature changes, aging, and the effect of duty cycle modulation. It also can provide stabilization effect by shifting the positive zero to the left-half S-plane. Design guidelines are formulated to optimize regulator-loop dependent characteristics.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- November 1979
- Bibcode:
- 1979STIA...8121675M
- Keywords:
-
- Adaptive Control;
- Design Analysis;
- Feedback Control;
- Network Analysis;
- Regulators;
- Wire Winding;
- Control Stability;
- Operational Amplifiers;
- Optimal Control;
- Signal Analysis;
- Switching Circuits;
- Transfer Functions;
- Electronics and Electrical Engineering