Hello,
I am looking to build a ~20 amp capacitor charger using the LT3750 however they do not specify any suitable transformers above 10 amp peak primary current. The LT3750 is rated for 10uH primary inductance. However the transformer I would like to use (coilcraft ga3459) is rated for 5uH. It does work in spice which is hopeful. Does anyone foresee any issues? In spice I keep reducing the value of R8 all the way down to 2m to get it to draw 10 amps. According to spice you’d never get anywhere near 10 amps with R8 at 8m per the reference design. Any harm in reducing the value that much?
I am looking to build a ~20 amp capacitor charger using the LT3750 however they do not specify any suitable transformers above 10 amp peak primary current. The LT3750 is rated for 10uH primary inductance. However the transformer I would like to use (coilcraft ga3459) is rated for 5uH. It does work in spice which is hopeful. Does anyone foresee any issues? In spice I keep reducing the value of R8 all the way down to 2m to get it to draw 10 amps. According to spice you’d never get anywhere near 10 amps with R8 at 8m per the reference design. Any harm in reducing the value that much?
Attachments
-
24.7 KB Views: 31
Last edited: