Dual inverter power supply

A dual inverter power supply comprising:

• a transformer having a first inverter primary coil having a first end and a second end and a second inverter primary coil having a first end and a second end;
• a first pair of switches including a first and a second switch, and a second pair of switches including a third and a fourth switch each connected such that when said first pair of switches is on, said second pair of switches is off and when said first pair of switches is off said second pair of switches is on;
• a third pair of switches including a fifth and a sixth switch, and a fourth pair of switches including a seventh and an eighth switch each connected such that when said third pair of switches is on, said fourth pair of switches is off and when said third pair of switches is off said fourth pair of switches is on;
• each said switch having a first and a second end, said first ends of said first, third, fifth and seventh switches connected to a first high voltage current source, said first ends of said second, fourth, sixth and eighth switches connected to a second high voltage current source;
• said second ends of said first and said fourth switches connected to said first end of said first inverter primary coil, said second ends of said second and third switches connected to said second end of said first inverter primary coil, said second ends of said fifth and said eighth switches connected to said first end of said second inverter primary coil, said second ends of said sixth and seventh switches connected to said second end of said second inverter primary coil;
• a first secondary coil having a first end and a second end;
• a second secondary coil having a first end connected to said second end of said first secondary coil, and a second end, said first and said second secondary coils and said first and said second primary coils magnetically linked;
• a rectifier bridge having a first input connected to said first end of said first inverter secondary coil and a second input connected to said second end of said second inverter secondary coil, a second input connected to said second end of said first inverter secondary coil and to said second end of said second inverter secondary coil, said rectifier bridge having a pair of electrical power outputs for at least one of welding and fusing, and;
• a phase controller to control the relative timing of operation of said first and second pairs of switches with respect to said third and fourth pairs of switches to control a magnitude of current and voltage of said electrical power outputs of said rectifier bridge.