This article discusses the causes and effects of parasitic ringing in the gate drive circuit of dc-to-dc converters. It also presents experimental results validating a possible solution.

This article explores the failure of a DC/DC converter without start-up overshoot and provides solutions to a problem that is relevant to space electronic systems.

In this case study, the author describes the investigation of a defective DC-DC converter retrieved from an aircraft following the report of abnormal system behavior. Electrical testing, local probing, X-ray imaging, and cross-sectional analysis led to the discovery of cracks on several pins and in some of the solder material. The cracks were caused by different rates of thermal expansion and were remedied with the help of thermomechanical analysis, EBSD imaging, and phase map comparisons for thick and thin solder joints.