Patent ID: 6201723
Filing Date: 2001-03-13
Classification: H02J

Abstract:
A current sharing circuit comprising:first and second board mounted power modules, each of said power modules including an input side and an output side, said power modules coupled to each other via respective input sides, each of said output sides including a positive terminal and a negative terminal, said first and second power modules further comprising a first and second trim terminal, respectively;first and second circuit output voltage terminals;first and second set point controls coupled to said negative terminal of each of said output sides; anda first and second initial set point controls providing current signal paths between corresponding first and second set point controls and said first circuit output voltage terminal;whereby said first and second set point controls and said first and second initial set point controls are configured to allow current sharing through said first and second circuit output voltage terminals when a current signal is applied to said input side of said first and second power modules, and whereby said first set point control is coupled between said first circuit output voltage terminal and said first trim terminal, the voltage of said first power module adapted to follow the voltage across said first circuit output voltage terminal and resulting in said first and second power modules current sharing.