T
treez
Guest
Hi
A way of doing this Power supply spec?…..
Vin = 1000v to 880v (source is 1000V but cable resistance between source and Power supply is 7.5 Ohms so actual vin drops with load)
Vout = 48V
Pout total = 12kW
Efficiency 0.85
Pin total = 14100W
Chosen Topology = In blocks of three Two Transistor forward converters with inputs stacked and fed from three “totem pole” series capacitors.
7 totem poles altogether. (ie 21 x 670W two transistor forwards).
All outputs paralleled.
12 Amp Current clamps on output of each two transistor forward so none hog the current.
Do you see any problems with this?
A way of doing this Power supply spec?…..
Vin = 1000v to 880v (source is 1000V but cable resistance between source and Power supply is 7.5 Ohms so actual vin drops with load)
Vout = 48V
Pout total = 12kW
Efficiency 0.85
Pin total = 14100W
Chosen Topology = In blocks of three Two Transistor forward converters with inputs stacked and fed from three “totem pole” series capacitors.
7 totem poles altogether. (ie 21 x 670W two transistor forwards).
All outputs paralleled.
12 Amp Current clamps on output of each two transistor forward so none hog the current.
Do you see any problems with this?