GB2345212B - Device having a tracking power converter for providing a linear power amplifier - Google Patents

Device having a tracking power converter for providing a linear power amplifier

Info

Publication number
GB2345212B
GB2345212B GB0003503A GB0003503A GB2345212B GB 2345212 B GB2345212 B GB 2345212B GB 0003503 A GB0003503 A GB 0003503A GB 0003503 A GB0003503 A GB 0003503A GB 2345212 B GB2345212 B GB 2345212B
Authority
GB
United Kingdom
Prior art keywords
providing
power amplifier
tracking
power converter
linear
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.)
Expired - Fee Related
Application number
GB0003503A
Other versions
GB0003503D0 (en
GB2345212A (en
Inventor
Pallab Midya
Lawrence E Connell
John Grosspietsch
Ronald Gene Myers
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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
Priority claimed from US09/001,625 external-priority patent/US6138042A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of GB0003503D0 publication Critical patent/GB0003503D0/en
Publication of GB2345212A publication Critical patent/GB2345212A/en
Application granted granted Critical
Publication of GB2345212B publication Critical patent/GB2345212B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB0003503A 1997-12-31 1998-11-04 Device having a tracking power converter for providing a linear power amplifier Expired - Fee Related GB2345212B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/001,625 US6138042A (en) 1997-12-31 1997-12-31 Method, device, phone, and base station for providing an efficient tracking power converter for variable signals
GB9824020A GB2332996B (en) 1997-12-31 1998-11-04 Method and device for providing an efficient tracking power converter for variable signals

Publications (3)

Publication Number Publication Date
GB0003503D0 GB0003503D0 (en) 2000-04-05
GB2345212A GB2345212A (en) 2000-06-28
GB2345212B true GB2345212B (en) 2000-11-29

Family

ID=26314597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0003503A Expired - Fee Related GB2345212B (en) 1997-12-31 1998-11-04 Device having a tracking power converter for providing a linear power amplifier

Country Status (1)

Country Link
GB (1) GB2345212B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI114666B (en) 2000-10-31 2004-11-30 Elektrobit Oy Linearization method and amplifier arrangement
US7196583B2 (en) 2004-07-08 2007-03-27 Sony United Kingdom Limited Power control of a power amplifier
US7706467B2 (en) 2004-12-17 2010-04-27 Andrew Llc Transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
US20060199553A1 (en) 2005-03-07 2006-09-07 Andrew Corporation Integrated transceiver with envelope tracking
EP2144365A1 (en) * 2008-07-11 2010-01-13 Alcatel Lucent Device for amplifying signals with an envelope tracking technique or an envelope extraction and restoration technique controlled by a switched modulation
US20100027301A1 (en) * 2008-07-31 2010-02-04 Motorola, Inc. Band-pass current mode control scheme for switching power converters with higher-order output filters
US8896383B2 (en) * 2012-04-30 2014-11-25 Qualcomm Incorporated Enhanced pulse frequency modulation (PFM) control mode for switching regulators
EP2670047A1 (en) * 2012-06-01 2013-12-04 Sequans Communications RF communications
GB2538775A (en) * 2015-05-28 2016-11-30 Snap Track Inc Controlled start-up of buck enabled envelope tracking modulator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360178A2 (en) * 1988-09-23 1990-03-28 HUGHES NETWORK SYSTEMS, INC. (a Delaware Corporation) Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals
EP0382695A2 (en) * 1989-02-08 1990-08-16 Nokia Mobile Phones Ltd. Transmitter arrangement for digitally modulated signals
EP0431201A1 (en) * 1989-06-30 1991-06-12 Nippon Telegraph And Telephone Corporation Linear transmitter
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
EP0717504A2 (en) * 1994-12-15 1996-06-19 Nokia Mobile Phones Ltd. Radio transmitters and methods of operation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0360178A2 (en) * 1988-09-23 1990-03-28 HUGHES NETWORK SYSTEMS, INC. (a Delaware Corporation) Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals
EP0382695A2 (en) * 1989-02-08 1990-08-16 Nokia Mobile Phones Ltd. Transmitter arrangement for digitally modulated signals
EP0431201A1 (en) * 1989-06-30 1991-06-12 Nippon Telegraph And Telephone Corporation Linear transmitter
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
EP0717504A2 (en) * 1994-12-15 1996-06-19 Nokia Mobile Phones Ltd. Radio transmitters and methods of operation

Also Published As

Publication number Publication date
GB0003503D0 (en) 2000-04-05
GB2345212A (en) 2000-06-28

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20110120 AND 20110126

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170831 AND 20170906

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20171104