EP3114761A4 - Device and method for current sensing and power supply modulator using the same - Google Patents

Device and method for current sensing and power supply modulator using the same Download PDF

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Publication number
EP3114761A4
EP3114761A4 EP14884686.8A EP14884686A EP3114761A4 EP 3114761 A4 EP3114761 A4 EP 3114761A4 EP 14884686 A EP14884686 A EP 14884686A EP 3114761 A4 EP3114761 A4 EP 3114761A4
Authority
EP
European Patent Office
Prior art keywords
power supply
same
current sensing
supply modulator
modulator
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.)
Withdrawn
Application number
EP14884686.8A
Other languages
German (de)
French (fr)
Other versions
EP3114761A1 (en
Inventor
Zhancang WANG
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.)
Provenance Asset Group LLC
Original Assignee
Nokia Technologies Oy
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 Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of EP3114761A1 publication Critical patent/EP3114761A1/en
Publication of EP3114761A4 publication Critical patent/EP3114761A4/en
Withdrawn legal-status Critical Current

Links

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
    • H03F1/02—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
    • H03F1/0211—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 supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • 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
    • H03F3/3432—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with bipolar transistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/432—Two or more amplifiers of different type are coupled in parallel at the input or output, e.g. a class D and a linear amplifier, a class B and a class A amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/91—Indexing scheme relating to amplifiers the amplifier has a current mode topology

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
EP14884686.8A 2014-03-07 2014-03-07 Device and method for current sensing and power supply modulator using the same Withdrawn EP3114761A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/073046 WO2015131391A1 (en) 2014-03-07 2014-03-07 Device and method for current sensing and power supply modulator using the same

Publications (2)

Publication Number Publication Date
EP3114761A1 EP3114761A1 (en) 2017-01-11
EP3114761A4 true EP3114761A4 (en) 2017-11-22

Family

ID=54054395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14884686.8A Withdrawn EP3114761A4 (en) 2014-03-07 2014-03-07 Device and method for current sensing and power supply modulator using the same

Country Status (2)

Country Link
EP (1) EP3114761A4 (en)
WO (1) WO2015131391A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422366A (en) * 1966-05-31 1969-01-14 Honeywell Inc Constant current differential amplifier with current sensing and feedback networks
US20020183019A1 (en) * 2001-05-29 2002-12-05 Dent Paul W. High-level modulation method and apparatus
US6661217B2 (en) * 2001-12-21 2003-12-09 Telefonaktiebolaget L.M. Ericsson Wideband precision current sensor
US20110095818A1 (en) * 2009-10-22 2011-04-28 Intersil Americas Inc. Method and apparatus for accurately measuring currents using on chip sense resistors
US20110163730A1 (en) * 2010-01-06 2011-07-07 Seagate Technology Llc Current mode bang-bang regulator amplifier
US8174292B2 (en) * 2008-09-12 2012-05-08 Stmicroelectronics, S.R.L. Current sensing circuit for PWM applications with pulse width modulation and corresponding current process
US20130271216A1 (en) * 2012-04-16 2013-10-17 Linear Technology Corporation High Side Current Sense Amplifier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100325420B1 (en) * 2000-02-15 2002-02-21 강인호 Envelope tracking amplifier having improved gain, terminal for mobile communication using the same, and method for improving gain relating thereto
GB2436619B (en) * 2005-12-19 2010-10-06 Toumaz Technology Ltd Sensor circuits
JP5191671B2 (en) * 2007-02-17 2013-05-08 セイコーインスツル株式会社 Adder and current mode switching regulator
CN102684494B (en) * 2011-03-17 2014-10-29 中兴通讯股份有限公司 Power supply modulation method and power supply modulator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422366A (en) * 1966-05-31 1969-01-14 Honeywell Inc Constant current differential amplifier with current sensing and feedback networks
US20020183019A1 (en) * 2001-05-29 2002-12-05 Dent Paul W. High-level modulation method and apparatus
US6661217B2 (en) * 2001-12-21 2003-12-09 Telefonaktiebolaget L.M. Ericsson Wideband precision current sensor
US8174292B2 (en) * 2008-09-12 2012-05-08 Stmicroelectronics, S.R.L. Current sensing circuit for PWM applications with pulse width modulation and corresponding current process
US20110095818A1 (en) * 2009-10-22 2011-04-28 Intersil Americas Inc. Method and apparatus for accurately measuring currents using on chip sense resistors
US20110163730A1 (en) * 2010-01-06 2011-07-07 Seagate Technology Llc Current mode bang-bang regulator amplifier
US20130271216A1 (en) * 2012-04-16 2013-10-17 Linear Technology Corporation High Side Current Sense Amplifier

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOHAN F WITTE ET AL: "A Current-Feedback Instrumentation Amplifier With 5 Offset for Bidirectional High-Side Current-Sensing", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 43, no. 12, 1 December 2008 (2008-12-01), pages 2769 - 2775, XP011238661, ISSN: 0018-9200, DOI: 10.1109/JSSC.2008.2005695 *
See also references of WO2015131391A1 *

Also Published As

Publication number Publication date
EP3114761A1 (en) 2017-01-11
WO2015131391A1 (en) 2015-09-11

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Ipc: H03F 3/19 20060101ALI20171013BHEP

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