Voltage tolerant level shifter
US10804884B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2020 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jan 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018528
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A level shifter includes a latch circuit, an input stage, a driver stage and a control circuit. The latch circuit is configured to generate an output signal according to a signal level at a first drive node and a signal level at a second drive node. The input stage is configured to receive an input signal to adjust a signal level at a connection node. The driver stage is configured to drive the first drive node by coupling the connection node to the first drive node according to a set of control signals. The control circuit is coupled to the input stage and the driver stage. The control circuit is configured to control the driver stage to couple the connection node to the first drive node by adjusting a signal level of each control signal in the set of control signals during a level transition of the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.