Synchronous-rectification type control for direct current motors and method of making

An electronic control for a direct current traction motor, comprising:

• a first plurality of parallel-connected power field effect transistors arranged for connection in series with the motor, a field gate electrode of each first field effect transistor being connected to a first common control line;
• a second plurality of parallel-connected power field effect transistors arranged for connection in parallel with the motor, a field gate electrode of each second field effect transistor being connected to a second common control line;
• and
• control circuitry for generating first and second synchronous control signals, the control circuitry being connected to the first common control line which conducts the first control signal to switch the first field effect transistors in an on-off cycle of conduction to provide drive current to the motor from a direct current source, and the control circuitry being connected to the second common control line which conducts the second control signal for switching the second field effect transistors in a synchronous-rectification cycle of conduction for commuting a motor current when the first field effect transistors are switched off.