UCC256301: UCC25630 For LLC Design

Vincent Li00

Intellectual 2035 points

Part Number: UCC256301
Other Parts Discussed in Thread: UCC28951,

Frequency: 100KHZ;

Power：1000W;

Input: 380-400v dc;

Output: +/-85V

Need a big transformer

How to design if need to use PM amorphous magnetic ring?

how many turns at the first stage and second stage? (My existing inventory is 50mm*32mm*15mm high amorphous ring.)

Thank you

over 7 years ago

0 Benjamin Lough over 7 years ago

TI__Mastermind 27145 points

Hi Vincent,

Thanks your your interest in UCC256301. I will check if we have any guidelines for LLC transformer design. May I ask what made you consider using half bridge LLC topology for 1kW design? This will require quite large magnetics. You could also consider phase shifted full bridge such as UCC28951 for this power level: www.ti.com/.../UCC28951-Q1

Best Regards,
Ben Lough

Power management

Power management forum

UCC256301: UCC25630 For LLC Design