Multiport power monitor
US6169491A · kind A · utility
6Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Sep 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/155
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-port power monitor is provided which indicates whether power is being supplied to one or more of a plurality of ports connected to external devices. The multi-port power monitor comprises a plurality of serially connected indicators and a plurality of controllable switches which supply power to the individual indicators when one or more of the corresponding ports are active. Because the indicators are connected in series, rather than in parallel, the same current passes through each illuminated indicator thereby avoiding the need for a large power resistor or a large AC capacitor for each individual port
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.