TW200639609A - Band-gap reference voltage circuit - Google Patents

Band-gap reference voltage circuit

Info

Publication number
TW200639609A
TW200639609A TW094115030A TW94115030A TW200639609A TW 200639609 A TW200639609 A TW 200639609A TW 094115030 A TW094115030 A TW 094115030A TW 94115030 A TW94115030 A TW 94115030A TW 200639609 A TW200639609 A TW 200639609A
Authority
TW
Taiwan
Prior art keywords
transistor
reference voltage
resistor
band
voltage circuit
Prior art date
Application number
TW094115030A
Other languages
Chinese (zh)
Other versions
TWI267718B (en
Inventor
Hong-Chin Lin
Chao-Jui Liang
Original Assignee
Univ Nat Chunghsing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Nat Chunghsing filed Critical Univ Nat Chunghsing
Priority to TW94115030A priority Critical patent/TWI267718B/en
Publication of TW200639609A publication Critical patent/TW200639609A/en
Application granted granted Critical
Publication of TWI267718B publication Critical patent/TWI267718B/en

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  • Control Of Electrical Variables (AREA)

Abstract

A band-gap reference voltage circuit including a constant current generator and a reference voltage generator. The reference voltage generator includes a first transistor, a second resistor, a first transistor and a second transistor, and the emitter area of the first transistor is larger than the emitter area of the second transistor. The base, collector of the first transistor and a terminal of the first resistor are electrically connected to the current generator; and the emitter of the first transistor is electrically connected to the collector of the second transistor; and the base of the second transistor is electrically connected to the other terminal of the first resistor. The collector voltage is used as the reference voltage; the second resistor is disposed between the base and the emitter of the second transistor. The current supplied by the constant current generator enables the transistor to operate in the active region.
TW94115030A 2005-05-10 2005-05-10 Band-gap reference voltage circuit TWI267718B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94115030A TWI267718B (en) 2005-05-10 2005-05-10 Band-gap reference voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94115030A TWI267718B (en) 2005-05-10 2005-05-10 Band-gap reference voltage circuit

Publications (2)

Publication Number Publication Date
TW200639609A true TW200639609A (en) 2006-11-16
TWI267718B TWI267718B (en) 2006-12-01

Family

ID=38220422

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94115030A TWI267718B (en) 2005-05-10 2005-05-10 Band-gap reference voltage circuit

Country Status (1)

Country Link
TW (1) TWI267718B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI399631B (en) * 2010-01-12 2013-06-21 Richtek Technology Corp Fast start-up low-voltage bandgap reference voltage generator
TWI459174B (en) * 2007-03-13 2014-11-01 Analog Devices Inc Low noise voltage reference circuit
TWI461879B (en) * 2008-02-13 2014-11-21 Seiko Instr Inc Constant current circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI407289B (en) * 2010-02-12 2013-09-01 Elite Semiconductor Esmt Voltage generator, thermometer and oscillator with the voltage generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459174B (en) * 2007-03-13 2014-11-01 Analog Devices Inc Low noise voltage reference circuit
TWI461879B (en) * 2008-02-13 2014-11-21 Seiko Instr Inc Constant current circuit
TWI399631B (en) * 2010-01-12 2013-06-21 Richtek Technology Corp Fast start-up low-voltage bandgap reference voltage generator

Also Published As

Publication number Publication date
TWI267718B (en) 2006-12-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees