Power conversion device, invertor x-ray high-voltage generator, x-ray perspective photographing device, x-ray CT device and MRI device

摘要

The power conversion device of this invention, due to the capacitor and this capacitor which the direct current voltage which is rectified by the converter and this converter which rectify commercial business alternating current volts in direct current voltage the smoothness are done the measurement expedient which measures the charging and quality of the aforementioned capacitor every when using the invertor and the power conversion device which convert the direct current voltage which the smoothness is done to the alternating current volts of specified frequency and, beforehand to measure the charging and quality of the aforementioned capacitor of initial condition due to the aforementioned measurement expedient, that with memory expedient and this measurement expedient which remember the charging and quality of the aforementioned capacitor of the initial condition which was measured every at the time of the aforementioned useThe information expedient which reports the deterioration state of the capacitor which is decided by capacitor deterioration decision expedient and this capacitor deterioration decision expedient which decide the deterioration state of the aforementioned capacitor on the basis of the result of being compared by relative expedient and this relative expedient which compare the charging and quality of the capacitor of the initial condition which is remembered by the charging and quality and the aforementioned memory expedient of the capacitor which was measured and, it has. With this, because it is possible, to prevent the breakdown which accompanies the deterioration of the capacitor beforehand high reliability can be guaranteed it supplies to the medical picture diagnostic device as the power source which is stabilized.