Regenerative load bank systems and methods

A system for regeneratively testing electrically powered equipment, the system comprising:

• a power source;
• a unit under test (UUT) having a voltage input electrically connected to the power source;
• and
• a regenerative load system (RLS) electrically connected to the UUT, comprising:
• a RLS voltage input electrically connected to the UUT;
• a load current regulator electrically connected to the RLS voltage input, wherein the load current regulator includes two transistors connected to one another in series configured and adapted to switch OFF together or ON together, synchronously;
• a common gate drive operatively connected to the two transistors of the load current regulator to provide a common output of the common gate drive for PWM voltage control of the two transistors;
• a fly back rectifier electrically connected to the load current regulator, wherein the fly back rectifier includes two transistors connected to one another in series and does not provide for PWM voltage control of the two transistors of the fly back rectifier;
• and
• a current output electrically connected to the fly back rectifier, wherein the current output is configured and adapted to provide current to at least one of the UUT or the power source.

A method for regeneratively testing electrically powered equipment, the method comprising:

• outputting a voltage with a unit under test (UUT);
• receiving the voltage with a regenerative load system electrically connected to the UUT;
• regulating current through a load current regulator of the regenerative load system when both of two transistors of the load current regulator are in an ON position, wherein the two transistors of the load current regulator are connected to one another in series and are configured and adapted to switch OFF together or ON together, synchronously, based on a common output from a common gate drive operatively connected to the two transistors to provide for PWM voltage control of the two transistors;
• and
• receiving current in a voltage input of at least one of a power source or the regenerative load system.