Level shifter in half bridge GaN driver applications
US10727834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018507
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A direct-coupled level shifter to level shift a ground referenced input logic signal to an output logic signal that can have either a positive or negative reference. The level shifter includes two level shift drivers, each of which includes a positive level shift driver and a negative level shift driver. The positive level shift drivers operate when the reference of the latch is above ground and turn off when the reference is below ground. Similarly, the negative level shift drivers operate when the reference is below ground and turn off when the reference is above ground. The output logic signal is based on the output from the positive level shift driver receiving the input signal and the output from the negative level shift driver receiving an inverse of the input signal. The inverse of the output logic signal is based on the output from the positive level shift driver receiving an inverse of the input signal and the output from the negative level shift driver receiving the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.