Discharge method and circuit for USB connector
US10470283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Mar 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R24/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This document discusses, among other things, a discharge circuit for a USB connector configured to discharge a voltage of a pin (e.g., a VBUS pin) of the USB connector. The discharge circuit can include a discharge load to discharge the voltage of the pin; a first control circuit to adjust the magnitude of the discharge load during discharging, such that 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); and a second control circuit to detect whether the voltage of the pin is changed based on a reference voltage during discharging and adjust the magnitude of the discharge load in response to the change, such that a slew rate of the voltage of the first pin is within a second preset range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.