GB2250151B - Power amplifier protection circuit - Google Patents

Power amplifier protection circuit

Info

Publication number: GB2250151B
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

GB9116391A

Other versions

GB9116391D0 (en

GB2250151A (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

1991-07-30

Publication date

1995-04-05

1991-07-30 Application filed by NAD ELECTRONICS Ltd filed Critical NAD ELECTRONICS Ltd

1991-09-11 Publication of GB9116391D0 publication Critical patent/GB9116391D0/en

1992-05-27 Publication of GB2250151A publication Critical patent/GB2250151A/en

1994-08-12 Priority to GB9416291A priority Critical patent/GB2279835B/en

1995-04-05 Application granted granted Critical

1995-04-05 Publication of GB2250151B publication Critical patent/GB2250151B/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

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)

GB9116391A 1990-07-30 1991-07-30 Power amplifier protection circuit Expired - Fee Related GB2250151B (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Publications (3)

Publication Number	Publication Date
GB9116391D0 GB9116391D0 (en)	1991-09-11
GB2250151A GB2250151A (en)	1992-05-27
GB2250151B true GB2250151B (en)	1995-04-05

Family

ID=10679870

Family Applications (2)

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

Family Applications Before (1)

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

Country Status (1)

Country	Link
GB (2)	GB9016668D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5224169A (en) *	1991-05-13	1993-06-29	Thomson Consumer Electronics, Inc.	Protection arrangement for an audio output channel
EP0613239B1 (en) *	1993-02-22	1998-10-28	Koninklijke Philips Electronics N.V.	Audio amplifier arrangement
US6580318B2 (en)	2001-03-08	2003-06-17	Maxim Integrated Products, Inc.	Method and apparatus for protecting radio frequency power amplifiers
US11005431B2 (en) *	2019-04-03	2021-05-11	Analog Devices International Unlimited Company	Power amplifier fault detector

Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1131349A (en) *	1967-04-20	1968-10-23	Redifon Ltd	Improvements in or relating to electric signal amplifiers
GB1159012A (en) *	1966-05-23	1969-07-23	Decca Ltd	Improvements in or relating to Radio Transmitting Stations.
GB1236449A (en) *	1967-12-05	1971-06-23	Rca Corp	Amplifier protection circuit
GB1257318A (en) *	1967-11-21	1971-12-15
GB1467057A (en) *	1973-05-24	1977-03-16	Rca Corp	Amplifier with over-current protection
GB1467649A (en) *	1973-05-22	1977-03-16	Novanex Automation Nv	Electronic amplifier
GB1476089A (en) *	1974-04-19	1977-06-10	Multi State Devices Ltd	Semi-conductor thermal protection arrangements
GB2047956A (en) *	1979-02-27	1980-12-03	Ates Componenti Elettron	Electronic semiconductor component having a heat protection device
GB1596100A (en) *	1977-07-27	1981-08-19	Honeywell Gmbh	Overload protection circuit for a transistor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3838962A (en) *	1973-05-17	1974-10-01	Philco Ford Corp	Molding apparatus

1990
- 1990-07-30 GB GB909016668A patent/GB9016668D0/en active Pending
1991
- 1991-07-30 GB GB9116391A patent/GB2250151B/en not_active Expired - Fee Related

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1159012A (en) *	1966-05-23	1969-07-23	Decca Ltd	Improvements in or relating to Radio Transmitting Stations.
GB1131349A (en) *	1967-04-20	1968-10-23	Redifon Ltd	Improvements in or relating to electric signal amplifiers
GB1257318A (en) *	1967-11-21	1971-12-15
GB1236449A (en) *	1967-12-05	1971-06-23	Rca Corp	Amplifier protection circuit
GB1467649A (en) *	1973-05-22	1977-03-16	Novanex Automation Nv	Electronic amplifier
GB1467057A (en) *	1973-05-24	1977-03-16	Rca Corp	Amplifier with over-current protection
GB1476089A (en) *	1974-04-19	1977-06-10	Multi State Devices Ltd	Semi-conductor thermal protection arrangements
GB1596100A (en) *	1977-07-27	1981-08-19	Honeywell Gmbh	Overload protection circuit for a transistor
GB2047956A (en) *	1979-02-27	1980-12-03	Ates Componenti Elettron	Electronic semiconductor component having a heat protection device

Also Published As

Publication number	Publication date
GB9016668D0 (en)	1990-09-12
GB9116391D0 (en)	1991-09-11
GB2250151A (en)	1992-05-27

Publication	Publication Date	Title
HU9300279D0 (en)	1993-05-28	Power amplifier
GB9000238D0 (en)	1990-03-07	Minimum power standby circuit arrangement
EP0483852A3 (en)	1992-08-26	Power source circuit
EP0449251A3 (en)	1992-01-22	Output circuit
EP0440245A3 (en)	1991-11-21	Power source circuit
HK61597A (en)	1997-05-16	Amplifier circuit
EP0466245A3 (en)	1992-08-05	Circuit arrangement
GB2251525B (en)	1995-07-05	Cmos power amplifier
HU910278D0 (en)	1991-08-28	Circuit arrangement
GB2262672B (en)	1995-10-04	Power amplifier
GB2266021B (en)	1995-10-04	Power amplifier
GB2244398B (en)	1994-03-16	Electrical protection devices
EP0491336A3 (en)	1992-08-26	Electric circuit
EP0537739A3 (en)	1993-08-18	Power circuit
GB2244397B (en)	1994-02-16	Electrical protection devices
GB2264013B (en)	1995-05-31	Amplifier circuit
GB2250151B (en)	1995-04-05	Power amplifier protection circuit
GB9002094D0 (en)	1990-03-28	Circuit protection arrangement
GB2261785B (en)	1995-07-05	Amplifier circuit
GB2279835B (en)	1995-04-05	Power amplifier protection circuit
GB9124905D0 (en)	1992-01-22	Power supply protection circuit
GB2254212B (en)	1994-07-06	Power amplifiers
GB2244396B (en)	1994-02-23	Electrical protection devices
GB2239956B (en)	1993-08-25	Circuit arrangement
GB2280073B (en)	1996-11-27	Amplifier circuit

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)
2001-03-21	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20000730