WO1999066973A3 - Temperature compensation arrangement and current reference circuit - Google Patents

Temperature compensation arrangement and current reference circuit Download PDF

Info

Publication number
WO1999066973A3
WO1999066973A3 PCT/EP1999/004273 EP9904273W WO9966973A3 WO 1999066973 A3 WO1999066973 A3 WO 1999066973A3 EP 9904273 W EP9904273 W EP 9904273W WO 9966973 A3 WO9966973 A3 WO 9966973A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
reference circuit
voltage
temperature compensation
current reference
Prior art date
Application number
PCT/EP1999/004273
Other languages
French (fr)
Other versions
WO1999066973A2 (en
Inventor
Andreas Rusznyak
Original Assignee
Motorola Inc
Andreas Rusznyak
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 Motorola Inc, Andreas Rusznyak filed Critical Motorola Inc
Priority to DE69916891T priority Critical patent/DE69916891T2/en
Priority to EP99931114A priority patent/EP1144034B1/en
Publication of WO1999066973A2 publication Critical patent/WO1999066973A2/en
Publication of WO1999066973A3 publication Critical patent/WO1999066973A3/en

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
    • G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
    • G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
    • G05F3/245—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage producing a voltage or current as a predetermined function of the temperature

Abstract

A temperature compensation arrangement is provided for a current reference circuit. The current reference circuit has a voltage generator coupled to provide a voltage to a resistor, which generates a current in dependence upon the voltage. The arrangement includes a current source, arranged to be controlled by a control voltage from the voltage generator, and a diode arrangement coupled in series with the current source for deriving therefrom a control voltage. A compensating transitor is coupled to receive the control voltage for providing a temperature compensating supplemental current which is combined with the reference current to produce a combined current. The diode arrangement and the compensating transistor are arranged such that the combined current is substantially temperature independent.
PCT/EP1999/004273 1998-06-24 1999-06-18 Temperature compensation arrangement and current reference circuit WO1999066973A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE69916891T DE69916891T2 (en) 1998-06-24 1999-06-18 ARRANGEMENT FOR TEMPERATURE COMPENSATION AND CONSTANT CURRENT SWITCHING
EP99931114A EP1144034B1 (en) 1998-06-24 1999-06-18 Temperature compensation arrangement and current reference circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9813586A GB2338803B (en) 1998-06-24 1998-06-24 Temperature compensation arrangement and current reference circuit
GB9813586.6 1998-06-24

Publications (2)

Publication Number Publication Date
WO1999066973A2 WO1999066973A2 (en) 1999-12-29
WO1999066973A3 true WO1999066973A3 (en) 2002-05-30

Family

ID=10834273

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004273 WO1999066973A2 (en) 1998-06-24 1999-06-18 Temperature compensation arrangement and current reference circuit

Country Status (4)

Country Link
EP (1) EP1144034B1 (en)
DE (1) DE69916891T2 (en)
GB (1) GB2338803B (en)
WO (1) WO1999066973A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101950191B (en) * 2010-09-16 2012-05-09 电子科技大学 Voltage reference source with high-order temperature compensation circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391979A (en) * 1992-10-16 1995-02-21 Mitsubishi Denki Kabushiki Kaisha Constant current generating circuit for semiconductor devices
JPH08228114A (en) * 1995-02-21 1996-09-03 Nec Corp Constant current source circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792748A (en) * 1987-11-17 1988-12-20 Burr-Brown Corporation Two-terminal temperature-compensated current source circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5391979A (en) * 1992-10-16 1995-02-21 Mitsubishi Denki Kabushiki Kaisha Constant current generating circuit for semiconductor devices
JPH08228114A (en) * 1995-02-21 1996-09-03 Nec Corp Constant current source circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 199, no. 701 31 January 1997 (1997-01-31) *

Also Published As

Publication number Publication date
EP1144034A3 (en) 2002-08-07
EP1144034B1 (en) 2004-04-28
GB2338803A (en) 1999-12-29
DE69916891T2 (en) 2004-10-21
WO1999066973A2 (en) 1999-12-29
GB2338803B (en) 2002-10-09
GB9813586D0 (en) 1998-08-19
DE69916891D1 (en) 2004-06-03
EP1144034A2 (en) 2001-10-17

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