Post driver having voltage protection
US12323117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2022 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Jun 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45424
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A post driver includes an input pair circuit, a protection circuit, a common mode sensing circuit and an amplifier. The input pair circuit outputs a first signal through a first node and outputs a second signal through a second node according to a first input signal and a second input signal. The protection circuit provides the input pair circuit with voltage protection according to multiple first bias voltages and a second bias voltage, transmits the first signal to a first load to generate a first output signal, and transmits the second signal to a second load to generate a second output signal. The common mode sensing circuit senses a level of the first node and a level of the second node to generate a feedback signal. The amplifier generates the second bias voltage according to a reference signal and the feedback signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.