Tool/software:
Hi experts,
- When my client is using UCC28056. Input 220Vac, input power is 85W and output power is 80W. At this time, the conversion efficiency is 95%. But it is found that after disconnecting the load and optical coupling at the back end. Under no-load condition, the power consumption of the circuit is 0.4W. Is it normal?
- Or is there any way to measure the power consumption of UCC28056, which proves that the power consumption of our products is up to standard.
- This is the schematic diagram of the customer's PFC circuit. 2728.pfc.pdf
Best regards,
Kyle
