GB2386775B - A bias circuit for a bipolar transistor - Google Patents

A bias circuit for a bipolar transistor

Info

Publication number: GB2386775B
Authority: GB; United Kingdom
Prior art keywords: bipolar transistor; bias circuit; bias; circuit; bipolar
Prior art date: 2002-03-20
Legal status (The legal status 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 status listed.): Expired - Fee Related

Application number

GB0304053A

Other versions

GB0304053D0 (en

GB2386775A (en

Inventor

John David Birkbeck

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Roke Manor Research Ltd

Original Assignee

Roke Manor Research Ltd

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.)

2002-03-20

Filing date

2003-02-24

Publication date

2004-09-29

2002-03-20 Priority claimed from GB0206571A external-priority patent/GB0206571D0/en

2002-08-15 Priority claimed from GB0218920A external-priority patent/GB0218920D0/en

2003-02-24 Application filed by Roke Manor Research Ltd filed Critical Roke Manor Research Ltd

2003-03-18 Priority to PCT/GB2003/001167 priority Critical patent/WO2003081771A1/en

2003-03-18 Priority to AU2003216835A priority patent/AU2003216835A1/en

2003-03-18 Priority to US10/508,038 priority patent/US7288992B2/en

2003-03-20 Priority to GB0306405A priority patent/GB2386776B/en

2003-03-20 Priority to AU2003217033A priority patent/AU2003217033A1/en

2003-03-20 Priority to US10/508,120 priority patent/US7372332B2/en

2003-03-20 Priority to PCT/GB2003/001309 priority patent/WO2003081772A1/en

2003-03-26 Publication of GB0304053D0 publication Critical patent/GB0304053D0/en

2003-09-24 Publication of GB2386775A publication Critical patent/GB2386775A/en

2004-09-29 Publication of GB2386775B publication Critical patent/GB2386775B/en

2004-09-29 Application granted granted Critical

2023-02-24 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
- H03F1/0266—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

GB0304053A 2002-03-20 2003-02-24 A bias circuit for a bipolar transistor Expired - Fee Related GB2386775B (en)

Priority Applications (7)

Application Number	Priority Date	Filing Date	Title
US10/508,038 US7288992B2 (en)	2002-03-20	2003-03-18	Bias circuit for a bipolar transistor
AU2003216835A AU2003216835A1 (en)	2002-03-20	2003-03-18	A bias circuit for a bipolar transistor
PCT/GB2003/001167 WO2003081771A1 (en)	2002-03-20	2003-03-18	A bias circuit for a bipolar transistor
GB0306405A GB2386776B (en)	2002-03-20	2003-03-20	Optimising power consumption in amplifiers
AU2003217033A AU2003217033A1 (en)	2002-03-20	2003-03-20	Optimising power consumption in amplifiers
US10/508,120 US7372332B2 (en)	2002-03-20	2003-03-20	Optimizing power consumption in amplifiers
PCT/GB2003/001309 WO2003081772A1 (en)	2002-03-20	2003-03-20	Optimising power consumption in amplifiers

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB0206571A GB0206571D0 (en)	2002-03-20	2002-03-20	A configurable HBT/Bipolar bias circuit
GB0218920A GB0218920D0 (en)	2002-08-15	2002-08-15	Power amplifier

Publications (3)

Publication Number	Publication Date
GB0304053D0 GB0304053D0 (en)	2003-03-26
GB2386775A GB2386775A (en)	2003-09-24
GB2386775B true GB2386775B (en)	2004-09-29

Family

ID=26247012

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0304053A Expired - Fee Related GB2386775B (en)	2002-03-20	2003-02-24	A bias circuit for a bipolar transistor

Country Status (1)

Country	Link
GB (1)	GB2386775B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2406728B (en) *	2003-10-01	2007-06-13	Zarlink Semiconductor Ltd	An integrated circuit device
EP1528666A1 (en) *	2003-11-03	2005-05-04	TriQuint Semiconductor GmbH	Power amplifier circuit configuration and integrated circuit
GB2408400B (en)	2003-11-24	2006-05-03	Zarlink Semiconductor Ltd	A circuit arrangement
GB2408401B (en)	2003-11-24	2006-05-03	Zarlink Semiconductor Ltd	A network
CN100527609C (en) *	2005-10-26	2009-08-12	威盛电子股份有限公司	Variable gain amplifier circuit and related method
CN119893826B (en) *	2025-01-25	2025-08-12	北京平和创业科技发展有限公司	PCB anti-interference current-limiting circuit structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5436595A (en) *	1994-08-01	1995-07-25	Hewlett-Packard Company	Low voltage bipolar amplifier
EP0942524A2 (en) *	1998-03-13	1999-09-15	Nokia Mobile Phones Ltd.	Radio frequency amplifiers
US6023196A (en) *	1998-08-03	2000-02-08	Lucent Technologies Inc.	Bias circuit for transconductance amplifier
WO2001067594A1 (en) *	2000-03-06	2001-09-13	Infineon Technologies Ag	Circuit arrangement for adjusting the operating point of a high-frequency transistor and an amplifier circuit

2003
- 2003-02-24 GB GB0304053A patent/GB2386775B/en not_active Expired - Fee Related

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5436595A (en) *	1994-08-01	1995-07-25	Hewlett-Packard Company	Low voltage bipolar amplifier
EP0942524A2 (en) *	1998-03-13	1999-09-15	Nokia Mobile Phones Ltd.	Radio frequency amplifiers
US6023196A (en) *	1998-08-03	2000-02-08	Lucent Technologies Inc.	Bias circuit for transconductance amplifier
WO2001067594A1 (en) *	2000-03-06	2001-09-13	Infineon Technologies Ag	Circuit arrangement for adjusting the operating point of a high-frequency transistor and an amplifier circuit
US20030038679A1 (en) *	2000-03-06	2003-02-27	Josef-Paul Schaffer	Circuit configuration for setting the operating point of a radiofrequency transistor and amplifier circuit

Also Published As

Publication number	Publication date
GB0304053D0 (en)	2003-03-26
GB2386775A (en)	2003-09-24

Publication	Publication Date	Title
AU2003216835A1 (en)	2003-10-08	A bias circuit for a bipolar transistor
AU2003205944A1 (en)	2003-09-02	Output circuit for a semiconductor amplifier element
AU2001243387A1 (en)	2001-09-17	Electronic semiconductor circuit which includes a tunnel diode
SG109612A1 (en)	2005-03-30	Semiconductor integrated circuit
TWI317985B (en)	2009-12-01	Two transistor nor device
DE60314333D1 (en)	2007-07-26	A / D converter bias current circuit
AU2003207892A1 (en)	2003-09-16	An interconnect-aware methodology for integrated circuit design
AU2003298592A8 (en)	2004-05-13	Second order predistortion circuit
DE60314962D1 (en)	2007-08-30	Semiconductor circuit
EP1489747A4 (en)	2005-07-20	Semiconductor integrated circuit
AU2003216362A1 (en)	2003-09-09	A modular integrated circuit chip carrier
AU2003283959A1 (en)	2004-04-30	Integrated circuit oscillator
GB2386775B (en)	2004-09-29	A bias circuit for a bipolar transistor
GB0204708D0 (en)	2002-04-17	Integrated circuit
AU2002236421A8 (en)	2003-09-09	A substrate for a semiconductor device
GB2393868B (en)	2005-11-16	Integrated circuit
GB0410247D0 (en)	2004-06-09	Heterojunction bipolar transistors
AU2002334182A1 (en)	2003-11-10	Integrated circuit layout modification
GB0419923D0 (en)	2004-10-13	A power-down scheme for an integrated circuit
AU2002346307A1 (en)	2003-09-04	Malfunction suprressing circuit for semiconductor device
AU2002351150A1 (en)	2003-09-02	A voltage limiting semiconductor pass gate circuit
AU2003283768A8 (en)	2004-06-30	Semiconductor component with a bipolar lateral power transistor
AU2003250940A1 (en)	2004-02-02	Bipolar transistor
AU2003246660A1 (en)	2004-02-02	Circuit for supplying a base operating voltage for a bipolar transistor and amplifying circuit
AU2003248073A1 (en)	2005-02-04	Semiconductor integrated circuit

Legal Events

Date	Code	Title	Description
2011-10-26	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20110224