Power supply protection device
US8310371B2 · kind B2 · utility
1Cited by
4References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 31, 2008 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply protection device for an electric appliance includes a switching circuit for establishing an electrical connection to receive an external voltage from the external power supply and output the external voltage to the electric appliance, a detecting circuit for disabling the switch circuit to break the electrical connection when determining the external voltage is equal to or higher than a predetermined value, and an alert circuit for generating an alert signal when the electrical connection is broken and outputting the alert signal to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.