Patent ID: 7639784
Filing Date: 2009-12-29
Classification: G01N,H05G

Abstract:
1. A control system for an X-ray source, the X-ray source including an X-ray tube, comprising: a high voltage power supply including a resonant converter-based power supply having a resonant converter that drives a transformer for operating the X-ray source, the high voltage power supply further including a temperature-sensitive high voltage resistive divider to sense the high voltage of the high voltage power supply and to produce a voltage feedback signal; a temperature sensor to sense the temperature of the high voltage resistive divider and to provide a temperature feedback signal; a sensor interface operative to receive the voltage feedback signal and the temperature feedback signal; and a programmable controller operative, in the response to the voltage feedback signal and the temperature feedback signal, to compensate for temperature effects and to generate a control signal for controlling the resonant converter-based power supply to maintain the input voltage to the X-ray tube over a temperature range.