Linear high voltage driver with programmable differential and common mode gain
US10075139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2016 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/6872
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low voltage to high voltage (LV2HV) conversion circuit has an input configured to receive an input signal (at a relatively low voltage) and an output configured to generate an output signal (at a relatively high voltage). The LV2HV conversion circuit includes a voltage to current conversion circuit referenced to the relatively low voltage and configured to convert a voltage of the input signal to a first current, wherein a magnitude of the first current is dependent on said voltage of the input signal and a gain setting value. A current mirroring circuit mirrors the first current and outputs a second current. A current to voltage conversion circuit converts the second current to a voltage of the output signal. The current mirroring circuit and current to voltage conversion circuit are referenced to the relatively high voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.