Switching power supplies are widely used in medical devices, such as a ventilator, mask machine, PCR nucleic acid detector, body temperature detector, multi-parameter monitor, x ray, CT/PET, blood analyzer, heart-lung machines, and diagnostic devices, etc. X ray machine power supply is one of the most popular medical power supplies. Follow these tips to select the most suitable safe, low leakage current, reliable insulation, and good EMC performance power supplies for the ”heart” of the medical device