Current measurement circuit with multiple operation modes
US12085593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2022 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Dec 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R35/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit may include a load transistor and a current measuring circuit that is coupled to the load transistor. The load transistor has a main current path, which is connected between a first supply node and an output pin for connecting a load. The current measuring circuit has a sense transistor coupled to the load transistor. The current measuring circuit is designed to deliver a measuring current that represents a load current flowing through the load transistor. The circuit may also include an analog-to-digital converter with a current input, and a digital-to-analog converter. The analog-to-digital converter is designed to output a digital signal representing an input current of the analog-to-digital converter. The digital-to-analog converter is designed to output an output current that depends on the digital signal. A control circuit is designed to output the measuring current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.