Study of Intermittency in Parallel-Connection Buck Converters

摘要

Intermittency is commonly observed by practicing power supply engineers in their design workbenches.It shows to be a symmetrical perioddoubling bifurcation in time domain with fixed long intermittent period.Sometimes it is called 'breathing'. The article studies on the intermittency in the parallel-connected buck converter under master-slave operation, and opens out the reason of the intermittency, then gives a scheme called phase-shifting to realize or control the intermittency. The experimental results provide useful information for the design of the system.