Patent ID: 7923943

Claim:
A powering arrangement comprising: a primary side pulse width modulation control circuit; a primary side electronically controlled switch responsive to an output of said primary side pulse width modulation control circuit; a primary side feedback circuit; a transformer exhibiting a primary winding and a plurality of secondary windings coupled to said primary winding, the primary winding connected in series with said primary side electronically controlled switch so as to be switchably coupled across a source of electrical power, wherein electrical power from the source of electrical power is alternately passed through said primary winding and prevented from passing through said primary winding responsive to the respective state of said primary side electronically controlled switch; a plurality of secondary side regulators, each associated with a particular one of the secondary windings and each arranged to control power output from the associated respective secondary winding to a respective load, each of said plurality of secondary side regulators comprising an electronically controlled switch arranged in series with the associated secondary winding; a plurality of secondary side electronically controlled switches, each of said plurality of secondary side electronically controlled switches arranged in series with the output of a particular one of said plurality of secondary side regulators to pulseably enable the flow of current through the respective load; a plurality of synchronized samplers, each of said plurality of synchronized samplers associated with a particular one of said plurality of secondary side electronically controlled switches and arranged to sample said pulseably enabled current flow and output a sampled representation; and a plurality of secondary side feedback circuits each associated with a particular one of said plurality of synchronized samplers, each of said plurality of secondary side feedback circuits configured for control of the associated particular secondary side regulator responsive to said respective sampled representation, wherein said primary side feedback circuit is arranged to feedback an output from one of said plurality of secondary windings for which a secondary side regulator is not supplied to a control input of said primary side pulse width modulation control circuit.