Patent · US Active

Low resistive load switch with output current control

US11239836B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

Dialog Semiconductor (UK) Limited · GB

Inventors

Jerome Sanchez · Munich, DE
Fabio Rigoni · Karlsfeld, DE
Jan Grabinski · Gdańsk, PL
Ali Zahabi · Fürstenfeldbruck, DE

Key dates

Filing date	Apr 21, 2020
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Apr 21, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/0081
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A circuit and a method for providing a switchable current linkage between a first terminal and a second terminal is presented. The circuit has a transistor switch and a charge pump circuit. An output node of the charge pump circuit is coupled to a control terminal of the transistor device, and an input node of the charge pump circuit is coupled to a predetermined voltage. The charge pump generates a boosted voltage. A drive circuit provides feedback control for the current flowing through the transistor. The drive circuit also controls the voltage magnitude at the input node of the charge pump circuit in accordance with the feedback control or to control a magnitude of a voltage at the control terminal of the transistor device in accordance with the feedback control.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.