Current sensing circuitry and integrated circuit and method for sensing a current
US9525570B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2009 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Aug 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0282
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Current sensing circuitry for sensing a current through a load comprises an adaptive-resistance sensor component arranged to be operably coupled in series with the load, and control logic for controlling a resistance of the adaptive-resistance sensor component. The control logic is arranged to receive a signal representative of a voltage across the adaptive-resistance sensor component, compare the received signal to a reference value that is representative of a determined voltage, and in response to the comparison control the resistance of the adaptive-resistance sensor component, such that the voltage across the adaptive-resistance sensor component substantially tracks the determined voltage value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.