Method and device for current sensing of small currents
US10490994B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2015 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Dec 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/0027
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for current sensing of a power transistor system having a power transistor, a first series circuit which includes a first transistor and a first resistance, the first resistance disposed in a load circuit of the first transistor, a second series circuit which has a second transistor and a second resistance disposed in a load circuit of the second transistor, the first series circuit, the second series circuit and the power transistor situated in parallel with one another, the first resistance connected to the first transistor in an electrically conductive manner when the first transistor is switched on, and the second resistance connected to the second transistor in an electrically conductive manner when the second transistor is switched on, and a gate terminal of the first transistor is connected in an electrically conductive manner to a gate terminal of the power transistor when the power transistor is switched on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.