Flash switch on-off detection circuit and electronic device
US11874326B2 · kind B2 · utility
0Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2020 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An on-off detection circuit for a flash switch includes an on-off detection module and a control module. An input end of the on-off detection module is connected with a power supply through the flash switch, the on-off detection module is configured to acquire a digital signal as a detection level according to an electromagnetic signal generated by input current. An input end of the control module is connected with an output end of the on-off detection module, to receive the detection level and determine an on-off state change of the flash switch according to the detection level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.