GB2279835B - Power amplifier protection circuit - Google Patents

Power amplifier protection circuit

Info

Publication number
GB2279835B
GB2279835B GB9416291A GB9416291A GB2279835B GB 2279835 B GB2279835 B GB 2279835B GB 9416291 A GB9416291 A GB 9416291A GB 9416291 A GB9416291 A GB 9416291A GB 2279835 B GB2279835 B GB 2279835B
Authority
GB
United Kingdom
Prior art keywords
power amplifier
protection circuit
amplifier protection
circuit
power
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
GB9416291A
Other versions
GB2279835A (en
GB9416291D0 (en
Inventor
Christopher Jack Evans
Christopher Newey
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.)
NAD ELECTRONICS Ltd
Original Assignee
NAD ELECTRONICS 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.)
Filing date
Publication date
Priority claimed from GB909016668A external-priority patent/GB9016668D0/en
Application filed by NAD ELECTRONICS Ltd filed Critical NAD ELECTRONICS Ltd
Publication of GB9416291D0 publication Critical patent/GB9416291D0/en
Publication of GB2279835A publication Critical patent/GB2279835A/en
Application granted granted Critical
Publication of GB2279835B publication Critical patent/GB2279835B/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
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • 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)
  • Amplifiers (AREA)
GB9416291A 1990-07-30 1994-08-12 Power amplifier protection circuit Expired - Fee Related GB2279835B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909016668A GB9016668D0 (en) 1990-07-30 1990-07-30 Power amplifier protection circuit
GB9116391A GB2250151B (en) 1990-07-30 1991-07-30 Power amplifier protection circuit

Publications (3)

Publication Number Publication Date
GB9416291D0 GB9416291D0 (en) 1994-10-05
GB2279835A GB2279835A (en) 1995-01-11
GB2279835B true GB2279835B (en) 1995-04-05

Family

ID=26297402

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9416291A Expired - Fee Related GB2279835B (en) 1990-07-30 1994-08-12 Power amplifier protection circuit

Country Status (1)

Country Link
GB (1) GB2279835B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1112616A1 (en) * 1998-09-14 2001-07-04 Nokia Corporation System and method for output power compensation for actual device temperature
US7840015B1 (en) * 2002-09-04 2010-11-23 Cirrus Logic, Inc. Thermal feedback for switch mode amplification
KR100595630B1 (en) * 2003-12-13 2006-06-30 엘지전자 주식회사 Method and apparatus of protection power amp for dual band mobile phone

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292105A2 (en) * 1987-05-22 1988-11-23 DELCO ELECTRONICS CORPORATION (a Delaware corp.) Audio amplifier protection circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292105A2 (en) * 1987-05-22 1988-11-23 DELCO ELECTRONICS CORPORATION (a Delaware corp.) Audio amplifier protection circuit

Also Published As

Publication number Publication date
GB2279835A (en) 1995-01-11
GB9416291D0 (en) 1994-10-05

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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)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070730