Current control circuitry
US11844157B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2022 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jul 8, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to current control circuitry for controlling a current through a load, the current control circuitry comprising: amplifier circuitry; reference voltage generator circuitry configured to supply a fixed reference voltage to a first input of the amplifier circuitry; an output stage comprising: a control terminal coupled to an output of the amplifier circuitry; a current input terminal configured to be coupled to the load; a current output terminal; a clock-controlled variable resistance coupled to the current output terminal of the output stage, wherein a resistance of the variable resistance is based on a digital code input to the variable resistance; and a feedback path between the current output terminal of the output stage and a second terminal of the amplifier circuitry for providing a feedback voltage to a second input of the amplifier circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.