GB1072947A - Creación de Inventos y Patentes con Inteligencia Artificial

GB1072947A – Improvements in and relating to a circuit arrangement for stabilizing the working points of a plurality of transistors by means of a temperature-dependent element
– Google Patents

GB1072947A – Improvements in and relating to a circuit arrangement for stabilizing the working points of a plurality of transistors by means of a temperature-dependent element
– Google Patents
Improvements in and relating to a circuit arrangement for stabilizing the working points of a plurality of transistors by means of a temperature-dependent element

Info

Publication number
GB1072947A

GB1072947A
GB35622/65A
GB3562265A
GB1072947A
GB 1072947 A
GB1072947 A
GB 1072947A
GB 35622/65 A
GB35622/65 A
GB 35622/65A
GB 3562265 A
GB3562265 A
GB 3562265A
GB 1072947 A
GB1072947 A
GB 1072947A
Authority
GB
United Kingdom
Prior art keywords
transistor
potentiometer
base
transistors
emitter
Prior art date
1964-08-22
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

Application number
GB35622/65A
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.)

Philips Electronics UK Ltd

Original Assignee
Philips Electronic and Associated Industries 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.)
1964-08-22
Filing date
1965-08-19
Publication date
1967-06-21

1965-08-19
Application filed by Philips Electronic and Associated Industries Ltd
filed
Critical
Philips Electronic and Associated Industries Ltd

1967-06-21
Publication of GB1072947A
publication
Critical
patent/GB1072947A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03F—AMPLIFIERS

H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor

H03F3/3069—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output

H03F3/3071—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the emitters of complementary power transistors being connected to the output with asymmetrical driving of the end stage

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

H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters

H03F1/307—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers

H—ELECTRICITY

H03—ELECTRONIC CIRCUITRY

H03F—AMPLIFIERS

H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor

H03F3/3083—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type

H03F3/3086—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal

H03F3/3091—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor the power transistors being of the same type two power transistors being controlled by the input signal comprising two complementary transistors for phase-splitting

Abstract

1,072,947. Transistor amplifying circuits. PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES Ltd. Aug. 19, 1965 [Aug. 22, 1964], No. 35622/65. Heading H3T. An arrangement for biasing in such a manner as to stabilize the working points of a number of transistors which are series connected and fed with the same A.C. signal comprises a further transistor having D.C. negative feedback. In a direct-coupled amplifier comprising a firststage T 1 driving a series-connected complementary pair T 2′ T 3 which provide a push-pull drive for a class B output stage T 4′ T 5 , the bases of the transistors T 2 , T 3 are biased by connection to the collector and emitter respectively of transistor To. The transistor To is provided with collector load R 1 and a D.C. negative feedback is applied to the base via potentiometer R 2′ R 3 ; compensation for changes in supply voltage may be further improved by the connection of a resistor R o between the supply line and the base of transistor To. The potentiometer R 2 , R 3 may be omitted, the base of transistor To then being connected to the emitter of transistor T 2 (Fig. 8, not shown) which then forms the D.C. potentiometer, in conjunction with transistor T 3 and the emitter bias resistors. Resistor R 0 may also be omitted, compensation for supply . fluctuations being effected by connecting a potentiometer between the supply line and the base of transistor T 0 (Fig. 9, not shown), the tapping point on this potentiometer forming the connecting point for the base of transistor T 3 .

GB35622/65A
1964-08-22
1965-08-19
Improvements in and relating to a circuit arrangement for stabilizing the working points of a plurality of transistors by means of a temperature-dependent element

Expired

GB1072947A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

DK416264AA

DK106043C
(en)

1964-08-22
1964-08-22

Circuits for stabilizing the operating point of several transistors against variations in temperature and supply voltage by means of a temperature-dependent element.

Publications (1)

Publication Number
Publication Date

GB1072947A
true

GB1072947A
(en)

1967-06-21

Family
ID=8130858
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB35622/65A
Expired

GB1072947A
(en)

1964-08-22
1965-08-19
Improvements in and relating to a circuit arrangement for stabilizing the working points of a plurality of transistors by means of a temperature-dependent element

Country Status (10)

Country
Link

US
(1)

US3629717A
(en)

AT
(1)

AT263076B
(en)

CH
(1)

CH446453A
(en)

DE
(1)

DE1513241B2
(en)

DK
(1)

DK106043C
(en)

ES
(1)

ES316672A1
(en)

FR
(1)

FR1460634A
(en)

GB
(1)

GB1072947A
(en)

NL
(1)

NL142292B
(en)

SE
(1)

SE313081B
(en)

Cited By (4)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3764829A
(en)

1972-06-09
1973-10-09
Motorola Inc
Adaptive transistor switch

US4473793A
(en)

1981-03-26
1984-09-25
Dbx, Inc.
Bias generator

US5337012A
(en)

1992-03-18
1994-08-09
U.S. Philips Corporation
Amplifier having temperature compensated bias control

GB2329086A
(en)

1997-09-02
1999-03-10
Ford Global Tech Inc
Low power rf amplifier with temperature compensation bias derived from the emitter of a second stage transistor.

Families Citing this family (7)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

JPS5330205Y2
(en)

1972-11-13
1978-07-28

CH554616A
(en)

1973-01-24
1974-09-30
Patelhold Patentverwertung

CIRCUIT ARRANGEMENT FOR U BE COMPENSATION IN THE OTHER CLOCK AB AMPLIFIER.

US3896393A
(en)

1973-12-26
1975-07-22
Motorola Inc
Monolithic power amplifier capable of operating class a and class ab

US4121168A
(en)

1977-08-24
1978-10-17
Burr-Brown Research Corporation
Optically coupled bias circuit for complementary output circuit and method

US4260956A
(en)

1979-03-16
1981-04-07
Rca Corporation
Temperature compensating bias circuit

JP2940542B2
(en)

1997-05-07
1999-08-25
セイコーエプソン株式会社

Driving waveform generating apparatus and driving waveform generating method for ink jet print head

US8536947B2
(en)

2008-12-19
2013-09-17
Qualcomm Incorporated
Class AB amplifier with resistive level-shifting circuitry

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2892165A
(en)

1954-10-27
1959-06-23
Rca Corp
Temperature stabilized two-terminal semi-conductor filter circuit

US3237119A
(en)

1962-03-26
1966-02-22
Solid States Systems Inc
Isolation amplifier having high linearity and an effective zero input capacitance over a wide frequency range

US3258606A
(en)

1962-10-16
1966-06-28

Integrated circuits using thermal effects

1964

1964-08-22
DK
DK416264AA
patent/DK106043C/en
active

1965

1965-08-17
NL
NL656510718A
patent/NL142292B/en
not_active
IP Right Cessation

1965-08-18
DE
DE1513241A
patent/DE1513241B2/en
active
Pending

1965-08-19
AT
AT765365A
patent/AT263076B/en
active

1965-08-19
CH
CH1167665A
patent/CH446453A/en
unknown

1965-08-19
SE
SE10901/65A
patent/SE313081B/xx
unknown

1965-08-19
GB
GB35622/65A
patent/GB1072947A/en
not_active
Expired

1965-08-20
ES
ES0316672A
patent/ES316672A1/en
not_active
Expired

1965-08-21
FR
FR29064A
patent/FR1460634A/en
not_active
Expired

1968

1968-03-29
US
US717461A
patent/US3629717A/en
not_active
Expired – Lifetime

Cited By (5)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3764829A
(en)

1972-06-09
1973-10-09
Motorola Inc
Adaptive transistor switch

US4473793A
(en)

1981-03-26
1984-09-25
Dbx, Inc.
Bias generator

US5337012A
(en)

1992-03-18
1994-08-09
U.S. Philips Corporation
Amplifier having temperature compensated bias control

GB2329086A
(en)

1997-09-02
1999-03-10
Ford Global Tech Inc
Low power rf amplifier with temperature compensation bias derived from the emitter of a second stage transistor.

GB2329086B
(en)

1997-09-02
2002-06-26
Ford Global Tech Inc
Low power RF amplifier

Also Published As

Publication number
Publication date

FR1460634A
(en)

1966-03-04

AT263076B
(en)

1968-07-10

ES316672A1
(en)

1965-11-16

SE313081B
(en)

1969-08-04

DK106043C
(en)

1966-12-12

NL142292B
(en)

1974-05-15

US3629717A
(en)

1971-12-21

DE1513241A1
(en)

1969-10-09

CH446453A
(en)

1967-11-15

DE1513241B2
(en)

1974-08-29

NL6510718A
(en)

1966-02-23

Información de contacto