Power sypply system for converting an A.C. power supply voltage into D.C. power supply voltage

摘要

The invention relates to a power supply system for an electronic device. The power supply system converts an A.C. power supply voltage into first and second D.C. power supply voltages. The system comprises two power supply units and a control unit. The control unit is actuated by a supply voltage from the first of the two power supply units and the control unit operates in conjunction with the power supply units.