Hello,
The attached is a bi-directional, mains isolated LLC converter, 7kW.
Its for a electric vehicle application whereby the car battery can also be discharged back into the mains.
As far as we know, (do you know otherwise?) this configuration of LLC converter, with the LLC components doubled up and populating both sides of the transformer, is the only way to do it to be sure of getting sufficient voltage gain in both directions. There is no other topology which can be mains isolated and bi-directional, with step-up and step-down in both directions.
It’s obvious what the Upper resonant frequency is, but what inductance value would you give to the magnetising inductance for the equation’s of AN-4151 by fairchildsemi? (L10 // L12 or just L10?)
AN-4151 (page 4 has the “Lm” value for magnetising inductance)
https://www.fairchildsemi.com/application-notes/AN/AN-4151.pdf
The attached is a bi-directional, mains isolated LLC converter, 7kW.
Its for a electric vehicle application whereby the car battery can also be discharged back into the mains.
As far as we know, (do you know otherwise?) this configuration of LLC converter, with the LLC components doubled up and populating both sides of the transformer, is the only way to do it to be sure of getting sufficient voltage gain in both directions. There is no other topology which can be mains isolated and bi-directional, with step-up and step-down in both directions.
It’s obvious what the Upper resonant frequency is, but what inductance value would you give to the magnetising inductance for the equation’s of AN-4151 by fairchildsemi? (L10 // L12 or just L10?)
AN-4151 (page 4 has the “Lm” value for magnetising inductance)
https://www.fairchildsemi.com/application-notes/AN/AN-4151.pdf