AU2002349859A8 - Apparatus and method for implementing a constant transconductance circuit - Google Patents

Apparatus and method for implementing a constant transconductance circuit

Info

Publication number
AU2002349859A8
AU2002349859A8 AU2002349859A AU2002349859A AU2002349859A8 AU 2002349859 A8 AU2002349859 A8 AU 2002349859A8 AU 2002349859 A AU2002349859 A AU 2002349859A AU 2002349859 A AU2002349859 A AU 2002349859A AU 2002349859 A8 AU2002349859 A8 AU 2002349859A8
Authority
AU
Australia
Prior art keywords
implementing
transconductance circuit
constant transconductance
constant
circuit
Prior art date
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.)
Abandoned
Application number
AU2002349859A
Other versions
AU2002349859A1 (en
Inventor
Kok Lim Chan
Chin Yong Edwin Lam
Piew Yoong Chee
Teck Hwee Lim
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.)
Agency for Science Technology and Research Singapore
Original Assignee
Agency for Science Technology and Research Singapore
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 Agency for Science Technology and Research Singapore filed Critical Agency for Science Technology and Research Singapore
Publication of AU2002349859A1 publication Critical patent/AU2002349859A1/en
Publication of AU2002349859A8 publication Critical patent/AU2002349859A8/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
    • G05F3/02—Regulating voltage or current
    • G05F3/08—Regulating voltage or current wherein the variable is dc
    • G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
    • G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
    • G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
    • G05F3/205—Substrate bias-voltage generators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/447—Indexing scheme relating to amplifiers the amplifier being protected to temperature influence

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
AU2002349859A 2002-10-15 2002-10-15 Apparatus and method for implementing a constant transconductance circuit Abandoned AU2002349859A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2002/000235 WO2004042782A2 (en) 2002-10-15 2002-10-15 Apparatus and method for implementing a constant transconductance circuit

Publications (2)

Publication Number Publication Date
AU2002349859A1 AU2002349859A1 (en) 2004-06-07
AU2002349859A8 true AU2002349859A8 (en) 2004-06-07

Family

ID=32310988

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002349859A Abandoned AU2002349859A1 (en) 2002-10-15 2002-10-15 Apparatus and method for implementing a constant transconductance circuit

Country Status (2)

Country Link
AU (1) AU2002349859A1 (en)
WO (1) WO2004042782A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8653895B2 (en) 2009-08-19 2014-02-18 Nxp, B.V. Circuit with reference source to control the small signal transconductance of an amplifier transistor
CN109062317B (en) 2018-09-07 2020-08-07 无锡华润矽科微电子有限公司 Constant current driving circuit and corresponding photoelectric smoke alarm circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5777518A (en) * 1996-10-30 1998-07-07 Lucent Technologies Inc. Method of biasing mosfet amplifiers for constant transconductance
US6323725B1 (en) * 1999-03-31 2001-11-27 Qualcomm Incorporated Constant transconductance bias circuit having body effect cancellation circuitry
US6407623B1 (en) * 2001-01-31 2002-06-18 Qualcomm Incorporated Bias circuit for maintaining a constant value of transconductance divided by load capacitance

Also Published As

Publication number Publication date
AU2002349859A1 (en) 2004-06-07
WO2004042782A2 (en) 2004-05-21
WO2004042782A3 (en) 2004-10-07

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase