Switch detection circuit, method, and switch detector
US11695284B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Sep 14, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch detection circuit includes a controller, a first DC isolation module, a second DC isolation module, and a signal conditioning module connected to the controller. The controller is connected to a first end of an external switch via the first DC isolation module and the signal conditioning module is connected to a second end of the external switch via the second DC isolation module. The controller is configured to output a pulse signal, and transmit the pulse signal to the second DC isolation module via the first DC isolation module and the external switch. As a current flowing out from the second DC isolation module, the signal conditioning module outputs a feedback signal to the controller and the controller counts according to the feedback signal and detects the working state of the external switch according to the count value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.