UCC2818-EP: Current loop

MOHAMED ALAKNAICH

Part Number: UCC2818-EP

Hello everybody,

I used the UCC2818-ep for an PFC flyback application.

To improve the mockup performances, I tried to configure the current loop but I constated that there is no impact on the Flyback behavior with all current loop setting.

Could you give explications please?

Note: My voltage loop is on secondary side and the feedback is done by an optocoupler.

Best regards

over 4 years ago

0 Hong Huang over 4 years ago

TI__Guru 52905 points

Please provide your schematics for review.

0 MOHAMED ALAKNAICH over 4 years ago in reply to Hong Huang

Prodigy 90 points

I can't to provide you the schematic (confidentiality).

I can to send you a simplified schematic (in visio file), however, I can't attached the file...??

0 Hong Huang over 4 years ago in reply to MOHAMED ALAKNAICH

TI__Guru 52905 points

I need to see the circuit to provide suggestions. You may ask your colleague to help or go to your local TI sales office for help.

0 MOHAMED ALAKNAICH over 4 years ago in reply to Hong Huang

Prodigy 90 points

Hello, here the simplified schematic:

0 Hong Huang over 4 years ago in reply to MOHAMED ALAKNAICH

TI__Guru 52905 points

I cannot comment since the circuit you provided is too simple. I need to know how each part connected in your converter.

Also, what do you mean by "no impact". Do you feel no impact or you have test data to show "no impact"?

0 Hong Huang over 4 years ago in reply to Hong Huang

TI__Guru 52905 points

Your TI FAE forwarded the circuit to me. Let's continue over the email. I am closing this thread.

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UCC2818-EP: Current loop