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Title: NPN bandgap voltage generator

Abstract

This patent describes a voltage reference circuit including a first output terminal for providing an output, a first supply voltage terminal, and a second supply voltage terminal, comprising: first means for developing a first voltage having a positive temperature coefficient, comprising: a first NPN transistor having an emitter coupled to the first output terminal, a collector coupled to the first supply voltage terminal, and a base; second means coupled between the first output terminal and the second supply voltage means for providing a resistance; a first resistor; a second resistor; a first diode; a second diode; third means for providing a resistance; and a second NPN transistor having an emitter coupled to the second supply voltage terminal by the first resistor, a base coupled both to the second supply voltage terminal by the first diode and to the base of the first NPN transistor by the third means, and a collector coupled to a node by the second diode. The node is coupled to the base of the first NPN transistor by the second resistor.

Inventors:
; ;
Publication Date:
OSTI Identifier:
6920348
Patent Number(s):
US 4628248
Assignee:
Motorola, Inc., Shaumburg, IL
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 31 Jul 1985
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ELECTRIC GENERATORS; DESIGN; OPERATION; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTRONIC CIRCUITS; RESISTORS; SEMICONDUCTOR DIODES; TEMPERATURE DEPENDENCE; TRANSISTORS; CURRENTS; ELECTRICAL EQUIPMENT; EQUIPMENT; SEMICONDUCTOR DEVICES; 420800* - Engineering- Electronic Circuits & Devices- (-1989)

Citation Formats

Birrittella, M S, Marley, R R, and Nootbar, K D. NPN bandgap voltage generator. United States: N. p., 1986. Web.
Birrittella, M S, Marley, R R, & Nootbar, K D. NPN bandgap voltage generator. United States.
Birrittella, M S, Marley, R R, and Nootbar, K D. Tue . "NPN bandgap voltage generator". United States.
@article{osti_6920348,
title = {NPN bandgap voltage generator},
author = {Birrittella, M S and Marley, R R and Nootbar, K D},
abstractNote = {This patent describes a voltage reference circuit including a first output terminal for providing an output, a first supply voltage terminal, and a second supply voltage terminal, comprising: first means for developing a first voltage having a positive temperature coefficient, comprising: a first NPN transistor having an emitter coupled to the first output terminal, a collector coupled to the first supply voltage terminal, and a base; second means coupled between the first output terminal and the second supply voltage means for providing a resistance; a first resistor; a second resistor; a first diode; a second diode; third means for providing a resistance; and a second NPN transistor having an emitter coupled to the second supply voltage terminal by the first resistor, a base coupled both to the second supply voltage terminal by the first diode and to the base of the first NPN transistor by the third means, and a collector coupled to a node by the second diode. The node is coupled to the base of the first NPN transistor by the second resistor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {12}
}