Patent · US Expired

Reference voltage source

US6737848B2 · kind B2 · utility

6Cited by

2References

2Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Laszlo Goetz · Freising, DE
Stefan Reithmaier · Freising, DE
Kevin Scoones · San Jose, US

Key dates

Filing date	Nov 14, 2002
Grant date	May 18, 2004
Priority date	—
Expiry date	Nov 30, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG05F3/22
WIPO fieldControl
WIPO sectorInstruments

Abstract

The invention relates to a reference voltage source including a bipolar transistor having a base, a collector and an emitter electrode. The reference voltage source further comprises a Schottky diode (D) whose anode is connected to the base electrode of the bipolar transistor and whose cathode is connected to the collector electrode of the bipolar transistor. The currents flowing through the Schottky diode and bipolar transistor are each set so that a temperature-independent reference voltage (VREF) materializes at the collector electrode of the bipolar transistor.

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