This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC28740 设计问题

Other Parts Discussed in Thread: UCC28740

Hi Sir,

 

目前我们参考TI Ref 设计一款type-C充电器,

但在调适过程中, 发现为什么频率无法被改变, 在high / low line, 都一样,

透过调整感量660uH, 频率约为35kHz, 调整为550uH后, 频率一样不变?!

 

请问在我该如何将频率理想设计在50kHz???