Discharge method and circuit for usb connector

A method for discharging a USB connector, the method comprising:

• discharging, with a discharge load, the voltage on a pin of the USB connector;
• adjusting a magnitude of the discharge load during the discharging such that a power consumption generated by the discharge load meets a first preset condition and a discharge time is within a first preset range, the first preset condition indicating that the generated power consumption does not trigger Over Temperature Protection (OTP);
• detecting a voltage change on the pin based on a reference voltage;
• and
• adjusting the magnitude of the discharge load in response to the voltage change, such that a slew rate of the voltage of the pin is within a second preset range.

A system comprising:

• means for discharging a voltage on a pin of a USB connector;
• means for adjusting a magnitude of the means for discharging such that power consumption generated by the means for discharging meets a first preset condition and a discharge time is within a first preset range, the first preset condition indicating that the generated power consumption does not trigger Over Temperature Protection (OTP);
• means for detecting a voltage change on the pin based on a reference voltage;
• and
• means for adjusting the magnitude of the means for discharging in response to the voltage change, such that a slew rate of the voltage of the pin is within a second preset range.