GB2279835B - Power amplifier protection circuit - Google Patents

Power amplifier protection circuit

Info

Publication number: GB2279835B
Authority: GB; United Kingdom
Prior art keywords: power amplifier; protection circuit; amplifier protection; circuit; power
Prior art date: 1990-07-30
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

GB9416291D0 (en

GB2279835A (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.)

1990-07-30

Filing date

1994-08-12

Publication date

1995-04-05

1990-07-30 Priority claimed from GB909016668A external-priority patent/GB9016668D0/en

1994-08-12 Application filed by NAD ELECTRONICS Ltd filed Critical NAD ELECTRONICS Ltd

1994-10-05 Publication of GB9416291D0 publication Critical patent/GB9416291D0/en

1995-01-11 Publication of GB2279835A publication Critical patent/GB2279835A/en

1995-04-05 Application granted granted Critical

1995-04-05 Publication of GB2279835B publication Critical patent/GB2279835B/en

2011-07-30 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
AU6035699A (en) *	1998-09-14	2000-04-03	Nokia Networks Oy	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	Output amplifier protection device and method of dual band portable terminal

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

1994
- 1994-08-12 GB GB9416291A patent/GB2279835B/en not_active Expired - Fee Related

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

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Legal Events

Date	Code	Title	Description
1999-08-11	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2008-03-26	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20070730