Hello,
We are doing a 3kW battery charger (Vin = 230VAC, Vout = 250 – 420VDC)
We wish to use the modified Cuk converter to do this. This converter does not need a mains diode bridge before it, and does not need an isolating SMPS stage downstream of it. The Cuk converter does the whole job by itself and needs no other circuits.
Do you think this is possible? Dr Slobodan Cuk seems to think so (as in link below)
Why is the current in the L1 always discontinuos? Can this circuit not operate in Continuous conduction mode?
Also, the series capacitor, C1, suffers 15 Amps of ripple current, and has to be rated to 600V (and must not be of polar type like an electrolytic), and has to be at least 100uF. Why does this capacitor have to be of such big Faradic value?
The attached is a simulation of our work so far of the Cuk converter. –Also the schematic of our work so far.
Here is the link to the pioneer of this breakthrough power supply circuit, and the details of it….
https://www.power-mag.com/pdf/feature_pdf/1310569074_Teslaco_Feature_Layout_1.pdf
The link is 4 years old, howcome nobody is doing this now?….why bother with a mains diode bridge and a downstream isolating converter if its not needed.?
We are doing a 3kW battery charger (Vin = 230VAC, Vout = 250 – 420VDC)
We wish to use the modified Cuk converter to do this. This converter does not need a mains diode bridge before it, and does not need an isolating SMPS stage downstream of it. The Cuk converter does the whole job by itself and needs no other circuits.
Do you think this is possible? Dr Slobodan Cuk seems to think so (as in link below)
Why is the current in the L1 always discontinuos? Can this circuit not operate in Continuous conduction mode?
Also, the series capacitor, C1, suffers 15 Amps of ripple current, and has to be rated to 600V (and must not be of polar type like an electrolytic), and has to be at least 100uF. Why does this capacitor have to be of such big Faradic value?
The attached is a simulation of our work so far of the Cuk converter. –Also the schematic of our work so far.
Here is the link to the pioneer of this breakthrough power supply circuit, and the details of it….
https://www.power-mag.com/pdf/feature_pdf/1310569074_Teslaco_Feature_Layout_1.pdf
The link is 4 years old, howcome nobody is doing this now?….why bother with a mains diode bridge and a downstream isolating converter if its not needed.?