Current monitoring system using bi-directional current sensor
US7183756B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Feb 6, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A power management system (100) comprising a power generator (1) for providing a supply signal (Vchg) to a load (2), a floating controllable bi-directional current sensor (N1) coupled via a first connection (10) to the power generator and via a second connection (20) to the load (2) for detecting a positive current (pos) flowing from the power generator (1) to the load (2) and a negative current (neg) from the load (2) to the power generator (3). In accordance with the invention, the floating controllable bi-directional current sensor (N1) is controlled by a current management block (3) coupled to a control terminal (G) of the floating controllable bi-directional current sensor (N1) and to the first and second connections (10, 20) for controlling an equivalent voltage between the first connection (10) and the second connection (20), for providing a first current (Ipos), which is proportional with the positive current (pos), and for providing a second current (Ineg), which is proportional with the negative current (neg).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.