Input/output circuit
US10305469B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2018 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jul 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0054
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An input/output circuit includes a first switch element, a control voltage providing circuit and a floating voltage providing circuit. The first switch element includes a control terminal, a first path terminal, a second path terminal and a base terminal. The first path terminal receive a first voltage, and the second path terminal receives a second voltage. The control voltage providing circuit provides a control voltage to the control terminal of the first switch element. The floating voltage providing circuit provides the larger between the first voltage and the second voltage to the base terminal of the first switch element, so as to prevent a leakage current from being generated between the first voltage source or the second voltage source and the base terminal of the first switch element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.