Patent · US Active

Electronic device and method providing a voltage reference

US8736354B2 · kind B2 · utility

3Cited by

7References

7Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Vadim V. Ivanov · Tucson, US
Johannes Gerber · Unterschleißheim, DE
Ralf Brederlow · Poing, DE

Key dates

Filing date	Nov 29, 2010
Grant date	May 27, 2014
Priority date	—
Expiry date	Nov 29, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG05F3/30
WIPO fieldControl
WIPO sectorInstruments

Abstract

An electronic device includes a bandgap reference voltage generation stage. The bandgap reference voltage generation stage comprises a device with a PN-junction, a current source feeding a first current during a first period of time and a second higher current during a second period of time through the PN-junction. The bandgap reference voltage is generated from a combination of a first voltage drop across the PN-junction during the first period of time and a second voltage drop across the PN-junction during the second period of time. This bandgap reference voltage is formed using switched capacitors.

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