Electrical leakage detection circuit
US7102356B2 · kind B2 · utility
12Cited by
8References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for detecting electrical leakage between a power supply and a frame of a vehicle or machine. The disclosed method includes coupling a first capacitor between a frame and a first terminal of a power supply for a predetermined period of time. The current flowing between the frame and the first capacitor is limited to a predetermined current limit. It is determined whether the voltage across the first capacitor exceeds a threshold voltage. A first output signal is provided when the voltage across the capacitor exceeds the threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.