Charging slowly line, line is very distorted

- May 27, 2019-

Cause analysis: common mode interference of charging.

Solution: common mode interference, increase the driving frequency can solve the problem.Since the interference signal strength of the charger will be different in different frequency bands, as long as the interference is lower than 3mv, it will have no impact on TP. Through the common mode analysis of the charger, 0X70, namely 724Khz, can meet the requirement.