Current sensing circuit
US7336085B2 · kind B2 · utility
14Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2006 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Apr 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/687
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement for detecting a load current through a load includes a main transistor, a sensing transistor through which a load current flows that is a measure of the load current flowing through the main transistor. In addition, a resistance is connected in series with the load path of the sensing transistor, and a current source is connected to a node arranged between the sensing transistor and the resistance. A detector detects the load current flowing through the main transistor by measuring the voltage across the resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.