Sensorless current mode control-an observer-based technique forDC-DC converters

摘要

Sensorless current mode (SCM) control is an observer method thatnprovides the operating benefits of current mode control without currentnsensing. SCM has significant advantages over both conventional peak andnaverage current-mode control techniques in noise susceptibility andndynamic range in both continuous mode and discontinuous mode. The methodnsupports line and bulk load regulation, and reduces control complexitynto a single loop. It also supports conventional two-loop control forntight load regulation. Encompassing one-cycle control as a special case,nthe general SCM method is a public domain control technique