Patent ID: 7359219

Claim:
A power supply comprising, a step-up converter ( 102 ); a resonant converter ( 103 ) connected to the step-up converter ( 102 ); a primary control unit ( 104 ) connected to the step-up converter ( 102 ) and the resonant converter ( 103 ); a step-down converter ( 101 ) having an output connected to the step-up converter ( 102 ) and the primary control unit ( 104 ) being connected to the step-down converter ( 101 ); the step-down converter ( 101 ), the step-up converter ( 102 ), the resonant converter ( 103 ), and the primary control unit ( 104 ) all being situated on a primary side of a transformer and the resonant converter ( 103 ) being connected to the primary side of the transformer, and the primary control unit ( 104 ) being adapted to trigger active components on the primary side of the transformer and the primary control unit ( 104 ) including a secondary rectifier unit ( 108 ) adapted to supply a rectified output voltage and the primary control unit ( 104 ) being connected to a secondary control unit ( 107 ) via a transfer unit ( 106 ) and the secondary rectifier unit ( 108 ) being connected to the secondary control unit ( 107 ).