Patent ID: 7046524
Filing Date: 2006-05-16
Classification: H02M

Abstract:
1. A power supply device having several switch-mode power supplies connected in parallel to supply at least one load ( 32 ), each switch-mode power supply generating an output current I 0 and an output voltage U 0 (I 0 , R L ) that is a function of the output current I 0 and a load resistance R L , and having a control device for each switch-mode power supply, wherein the control device has a first stage ( 50 ) having a P element ( 54 ) that receives a P element input voltage which is derived from the output voltage U 0 (I 0 , R L ), and generates a P element control voltage U VS , that is used to control the respective switch-mode power supply, the first stage being active when 0≦I 0 ≦I 0P , a second stage ( a third stage ( wherein I