BATAC

INVERTERS WHICH ARE SOLID STATE DEVICES FOR USE AS THE INPUT TO AN ELECTRIC MOTORS TO ACCEPT D.C. POWER AT THE INVERTER INPUT TERMINALS AND PRODUCE A.C. POWER AT THE INVERTER OUTPUT TERMINALS; AND CONVERTERS WHICH ARE SOLID STATE DEVICES FOR USE AS THE INPUT TO AN ELECTRIC MOTOR TO ACCEPT A.C. POWER AT ONE FREQUENCY AT THE CONVERTER INPUT TERMINALS AND PRODUCE A.C. POWER AT A DIFFERENT FREQUENCY AT THE CONVERTER OUTPUT TERMINALS