STATIC SYSTEM FOR CLOSED LOOP INTENSITY CONTROL IN X-RAY TUBE POWER SUPPLIES

摘要

An arrangement is provided for controlling the filament current of an X-ray tube 6. A D.C.-to-D.C. converter 2 supplies power to a D.C.-to-AC. inverter 3 including an output transformer 5 which acts as the filament supply transformer for X-ray tube 6. A first feedback circuit I allows the filament current to be stabilized and a second feedback circuit 7, 8, 9 allows the X-ray tube anode-cathode current to be stabilised at a selected or desired value.