Patent ID: 7586210

Claim:
A method of controlling the power delivered by a power source to at least two electrical loads, the method comprising: connecting a power supply to at least two electrical loads, the power supply comprising: an alternating current source having a bridge circuit including switching elements; and a power delivery control unit adapted to control the power delivered by the alternating current source into the electrical loads, the power delivery control unit comprising: a control member that determines a control value from a comparison between actual power delivery as detected by a detector and a desired power delivery; and an adjusting member inserted between the switching elements of the alternating current source and at least one of the loads such that the adjusting member is in series with the alternating current source and the at least one of the loads to thereby adjust power delivery based on the control value; driving a bridge circuit having switching elements and being contained in the alternating current source to produce an alternating current voltage and to control an alternating current power output from the alternating current source to provide two alternating current connections; connecting each connection of the alternating current source to an electrical load to deliver an alternating current to each of the electrical loads; determining an actual alternating current power delivered to each of the loads; comparing each of the determined actual powers with a desired power; and based on the comparison, adjusting an amount of power delivered to each of the loads.