Proper grounding detection and alarm circuit for electronic device
US7982626B2 · kind B2 · utility
0Cited by
12References
11Claims
0Family size
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Key dates
| Filing date | Nov 27, 2008 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A detection and alarm circuit includes a transformer, a rectifier, and an alarm. A first input terminal of the transformer is connected to a ground terminal of an electronic device, and a second terminal of the transformer is grounded. A first output terminal of the transformer is connected to a first input terminal of the rectifier, and a second output terminal of the transformer is connected to a second input terminal of the rectifier. A first output terminal of the rectifier is connected to a first terminal of the alarm. A second output terminal of the rectifier is connected to a second terminal of the alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.