Constant current supply

Claim 1

A CONSTANT CURRENT POWER SUPPLY FOR AN ELECTRON BEAM FURNACE, COMPRISING AN ELECTRON BEAM LOAD, A CONSTANT CURRENT NETWORK, A MAGNETIC CORE TRANSFORMER WITH A PRIMARY WINDING COUPLED TO THE NETWORK AND A SECONDARY WINDING COUPLED TO SAID ELECTRON BEAM LOAD, AND A MAGNETIC CORE INDUCTIVE REACTOR HAVING A WINDING CONNECTED IN PARALLEL WITH SAID PRIMARY WINDING OF SAID TRANSFORMER SO THAT THE SAME VOLTAGE IS APPLIED TO SAID REACTOR WINDING AS IS APPLIED TO SAID PRIMARY WINDING, SAID TRANSFORMER BEING DESIGNED TO HAVE AN OPERATING POINT ON THE MAGNETIZATION CURVE OF ITS CORE WHICH IS BELOW THE KNEE OF SAID CURVE FOR A PREDETERMINED NORMAL OPERATING VOLTAGE, SAID REACTOR DESIGNED TO HAVE AN OPERATING POINT ON THE MAGNETIZATION CURVE OF ITS CORE CLOSELY ADJACENT THE KNEE THEREOF OF SAID PREDETERMINED NORMAL OPERATING VOLTAGE, WHEREBY IN RESPONSE TO VOLTAGE RISES FROM SAID PREDETERMINED NORMAL OPERATING VOLTAGE THE CORE OF SAID TRANSFORMER IS UNSATURATED AND THE MAGNETIZATION CURRENT FLOWING IN ITS PRIMARY WINDING REMAINS RELATIVELY CONSTANT WHEREAS THE CORE OF SAID REACTOR IS SATURATED AND THE WINDING THEREOF DRAWS A GREATLY INCREASED MAGNETIZATION CURRENT TO THEREBY LIMIT SAID VOLTAGE RISES TO A SUBSTANTIALLY FIXED CEILING.