Hi All,
Our customer hope to use dynamic BJT drive type controller to reduce total BOM cost, so UCC28722 can be candidate. But also they hope to use opto-coupler feedback to achieve tighter accuracy and transient response. Then do you have any reference circuit for UCC28722 with opto-coupler feedback? Or do you have other solution except UCC28722?
Your advice will be appreciated.
Best Regards,
Sonoki / Japan Disty
Hi John,
Thank you for your quick response. I prepare the schematic referring your rough sketch. Please give your comment if the connection is not correct.
Best Regards,
Sonoki
Hi John,
I added a resistor between base and emitter of bipolar transistor. Please check it just in case.
Best Regards,
Sonoki
Hi John,
I have one more question about opto-coupled feedback configuration. Can we also use this solution for UCC28910 which has internal power switch? I believe it should be achieved with attached configuration.
Please check and give your comments, just in case.
Best Regards,
Sonoki
