Discharge method and circuit for USB connector
US11202358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2019 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Mar 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R24/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a general aspect, a discharge circuit for discharging a voltage from a USB connector pin can include a discharge load configured to discharge the voltage from the pin. The discharge circuit can also include a first control circuit configured to adjust a magnitude of the discharge load during discharging, such that power consumption is less than or equal to a discharge power limit, and a discharge time is less than or equal to a discharge time limit. The discharge circuit can further include a second control circuit configured to detect whether the voltage of the pin is changed based on a first reference voltage during discharging and adjust the magnitude of the discharge load in response to the change in the voltage of the pin, such that a slew rate of the voltage is less than or equal to a slew rate limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.