Evaluation of a Half-Bridge Converter in High-Voltage X-ray Generator

Abstract

This paper shows a result which evaluated a half-bridge converter for the purpose of the improvement in power factor and efficiency about an X-ray high-voltage generator. By making the inverter input voltage higher by the boosting function of the converter, the current flowing through the IGBTs of the inverter can be reduced. Thereby, the current rating of the device can be reduced. Moreover, boosting inverter input voltage can make the turn ratio of the high-voltage transformer smaller, which leads to reduction in stray load loss originated from leakage magnetic flux and in copper loss.