Over-voltage clamp circuit
US10797689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jun 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes an output transistor device configured to control an output voltage of an output node in response to a control signal and an input voltage. A current sensor is configured to sense an output current supplied from the output node. A feedback converter is configured to convert the sensed output current to a feedback signal that tracks the output voltage of the output node. The feedback converter is further configured to set a clamping threshold. A gate control circuit is configured to generate the control signal in response to the feedback signal. The gate control circuit is configured to clamp the output voltage of the output node via the control signal based on the clamping threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.