Hello Team
My customer is using UC2843 as Buck. The input voltage from 350-800V， output voltage is 300V. The power is 500w.
1)They have some issue about the output wave. The device is powered by 15V and the input can't connected. UC2843 refference output normal. But the driver output is abnormal. Attached are the scope wave. Not all device abnormal.
2) the work well devices, when the duty cycle rise, the output will oscillate harmonically. Could you give some comment about it? How to adjust the compensation network?
