SE7415220L - Integrerad forsterkare - Google Patents

Integrerad forsterkare

Info

Publication number: SE7415220L
Authority: SE; Sweden
Prior art keywords: resistors; resistor; output stage; feedback; dec
Prior art date: 1974-12-04

Application number

SE7415220A

Other languages

Unknown language ( )

English (en)

Other versions

SE384775B (sv

Inventor

O Sternbeck

Original Assignee

Ericsson Telefon Ab L M

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.)

1974-12-04

Filing date

1974-12-04

Publication date

1976-05-17

1974-12-04 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1974-12-04 Priority to SE7415220A priority Critical patent/SE384775B/sv

1975-11-19 Priority to US05/633,509 priority patent/US4013971A/en

1975-11-27 Priority to AU87050/75A priority patent/AU501782B2/en

1975-12-02 Priority to GB49538/75A priority patent/GB1515755A/en

1975-12-03 Priority to FR7537058A priority patent/FR2293830A1/fr

1975-12-03 Priority to DE19752554451 priority patent/DE2554451A1/de

1976-05-17 Publication of SE7415220L publication Critical patent/SE7415220L/sv

1976-05-17 Publication of SE384775B publication Critical patent/SE384775B/sv

Links

238000009792 diffusion process Methods 0.000 abstract 2
230000008878 coupling Effects 0.000 abstract 1
238000010168 coupling process Methods 0.000 abstract 1
238000005859 coupling reaction Methods 0.000 abstract 1

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits

Landscapes

Engineering & Computer Science (AREA)
Microelectronics & Electronic Packaging (AREA)
Multimedia (AREA)
Power Engineering (AREA)
Signal Processing (AREA)
Amplifiers (AREA)

SE7415220A 1974-12-04 1974-12-04 Integrerad forsterkare SE384775B (sv)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
SE7415220A SE384775B (sv)	1974-12-04	1974-12-04	Integrerad forsterkare
US05/633,509 US4013971A (en)	1974-12-04	1975-11-19	Integrated amplifier
AU87050/75A AU501782B2 (en)	1974-12-04	1975-11-27	Integrated amplifier
GB49538/75A GB1515755A (en)	1974-12-04	1975-12-02	Integrated amplifier circuits
FR7537058A FR2293830A1 (fr)	1974-12-04	1975-12-03	Amplificateur integre
DE19752554451 DE2554451A1 (de)	1974-12-04	1975-12-03	Integrierter verstaerker mit mehreren transistorverstaerkerstufen

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE7415220A SE384775B (sv)	1974-12-04	1974-12-04	Integrerad forsterkare

Publications (2)

Publication Number	Publication Date
SE7415220L true SE7415220L (sv)	1976-05-17
SE384775B SE384775B (sv)	1976-05-17

Family

ID=20322896

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7415220A SE384775B (sv)	1974-12-04	1974-12-04	Integrerad forsterkare

Country Status (6)

Country	Link
US (1)	US4013971A (sv)
AU (1)	AU501782B2 (sv)
DE (1)	DE2554451A1 (sv)
FR (1)	FR2293830A1 (sv)
GB (1)	GB1515755A (sv)
SE (1)	SE384775B (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1563193A (en) *	1975-08-02	1980-03-19	Ferranti Ltd	Semiconductor devices
CA1056970A (en) *	1977-01-10	1979-06-19	Northern Telecom Limited	Electronic network for telephone set
JPS6116605A (ja) *	1984-07-02	1986-01-24	Hitachi Ltd	可変利得増幅回路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1195405A (fr) *	1958-04-24	1959-11-17	Csf	Dispositif de contre-réaction à thermistances
GB951342A (en) *	1961-10-17	1964-03-04	Smith & Sons Ltd S	Improvements in or relating to electrical amplifying apparatus employing junction transistors
FR1460507A (fr) *	1962-09-07	1966-01-07	Texas Instruments Inc	Circuits à contre-réaction thermique

1974
- 1974-12-04 SE SE7415220A patent/SE384775B/sv not_active IP Right Cessation
1975
- 1975-11-19 US US05/633,509 patent/US4013971A/en not_active Expired - Lifetime
- 1975-11-27 AU AU87050/75A patent/AU501782B2/en not_active Expired
- 1975-12-02 GB GB49538/75A patent/GB1515755A/en not_active Expired
- 1975-12-03 FR FR7537058A patent/FR2293830A1/fr active Granted
- 1975-12-03 DE DE19752554451 patent/DE2554451A1/de not_active Withdrawn

Also Published As

Publication number	Publication date
FR2293830A1 (fr)	1976-07-02
FR2293830B1 (sv)	1980-02-08
SE384775B (sv)	1976-05-17
AU8705075A (en)	1977-06-02
US4013971A (en)	1977-03-22
AU501782B2 (en)	1979-06-28
DE2554451A1 (de)	1976-06-10
GB1515755A (en)	1978-06-28

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Legal Events

Date

Code

Title

Description

1995-01-31

NUG

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