Other Parts Discussed in Thread: UCC28064, TPS92314, UCC28060
We plan to use UCC28064A to implement a single-stage flyback PFC, while the output voltage is adjustable. However, we have encountered a problem that the voltage of the ZCD pin may become lower due to the output voltage adjustment. We are not sure how UCC28064A handles the ZCD internally. If the voltage of the ZCD pin is lower than the threshold of the internal comparator, will the chip not work or work in some form?