Controlled ferroresonant constant current source

A controlled ferroresonant constant current source, comprising:

• a ferromagnetic core;
• an input coil disposed about the core, the input coil to be connected to an alternating voltage source;
• an output coil disposed about the core and inductively coupled to the input coil, the output coil to be connected to a load;
• a control coil disposed about the core and inductively coupled to the output coil, the control coil connected to a switch for regulating the current output of the constant current source;
• a first capacitor coil connected to a capacitor, and disposed about the core and inductively coupled to the output coil;
• and
• a second capacitor coil connected to a capacitor, and disposed about the core and inductively coupled to the control coil, the first capacitor coil for providing a first resonant sub-circuit to generate maximum gain, and the second capacitor coil for providing a second resonant sub-circuit to control resonant gain.