Patent ID: 8410761

Claim:
A control circuit for use with an AC alternator comprising: a plurality of outlet lines leading from the alternator, and for each receiving a phase of current generated by the alternator; tap lines associated with each of said outlet lines, said tap lines each being associated with a switch, and a current sense for sensing a current in each of said tap lines and sending a current signal for each of said tap lines; said switches being operable to drain power to a drain when in a first state, and to allow the power to pass downstream to a system load as needed when in a second state; a switch control for controlling the switches to change between the first and second state; and a detector for detecting when each said current signal is approaching a zero crossing between a positive portion and a negative portion, and said switch control being operable to take in the information with regard to the approaching zero crossing, and change one of the switches associated with a particular tap line having the current signal approaching the zero crossing, between the first and second states.