Method of and device for protecting USB type-C interface chip when CC pins thereof being at high voltage
US10186815B2 · kind B2 · utility
3Cited by
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10Claims
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Assignee
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Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A USB Type-C interface chip having a CC pin. In an embodiment, the chip includes an internal unit coupled through a signal path to the CC pin; a high voltage detection unit coupled in the signal path, for detecting a voltage at the CC pin and comparing the detected voltage and a reference voltage; a high voltage protection unit for protecting, in response to the comparison result of the high voltage detection unit the internal unit from high voltage possibly present at the port of the chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.