GB1317869A - Device for converting an input voltage into an output signal current or vice versa - Google Patents

Device for converting an input voltage into an output signal current or vice versa

Info

Publication number
GB1317869A
GB1317869A GB714772A GB714772A GB1317869A GB 1317869 A GB1317869 A GB 1317869A GB 714772 A GB714772 A GB 714772A GB 714772 A GB714772 A GB 714772A GB 1317869 A GB1317869 A GB 1317869A
Authority
GB
United Kingdom
Prior art keywords
current
transistor
input
main electrode
constant
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
Application number
GB714772A
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.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1317869A publication Critical patent/GB1317869A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45197—Pl types
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/02—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric for comparing analogue signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/347—DC amplifiers in which all stages are DC-coupled with semiconductor devices only in integrated circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45098—PI types
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45471—Indexing scheme relating to differential amplifiers the CSC comprising one or more extra current sources
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/50—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F2203/5012—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower the source follower has a controlled source circuit, the controlling signal being derived from the drain circuit of the follower
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/50—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F2203/5018—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower the source follower has a controlled source circuit, the controlling signal being derived from the source circuit of the follower
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/50—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F2203/5021—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower the source follower has a controlled source circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/50—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F2203/5031—Indexing scheme relating to amplifiers in which input being applied to, or output being derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower the source circuit of the follower being a current source

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)

Abstract

1317869 Auto voltage & current regulation PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 Feb 1972 [19 Feb 1971] 7147/72 Heading G3X [Also in Divisions G4 and H3] A device for the substantially distortion-free conversion of an input voltage into an output current or vice-versa comprises a first and a second control input and an output for the current or voltage, the first control input being connected to the control electrode of an input transistor which further has a first and a second main electrode between which its main current path extends, which second main electrode also forms a second control input, and is characterised in that a high impedance current supply source is connected in the circuit between the first main electrode and a constant potential supply point whilst furthermore this main electrode is connected via a current feedback path to the control electrode of a first transistor the main current path of which is connected in the circuit between the second main electrode of the input transistor and another constant potential supply point, the output of the device being a point of the latter circuit or of the current feedback path. The specification describes a number of embodiments which primarily comprise distortion-free amplifiers [Figs. 1-8, (not shown); see Divisions H3-5]. In an embodiment comprising a constant-current source, the base of the input transistor T o is biased from a polentiometer comprising resistors R1, R2 and temperature-compensating diode D1, while its collector is connected to the positive supply point U b <SP>+</SP> via a constant-current device in the form of transistor T3. The first transistor comprises transistor T 1 , the constant output current being produced at to emitter, while transistor T 2 , the base of which is connected to the emitter of transistor T o but is otherwise left floating, provides the current feedback path. An additional transistor T2' may be used to provide a current source, comprising its collector.
GB714772A 1971-02-19 1972-02-16 Device for converting an input voltage into an output signal current or vice versa Expired GB1317869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7102199A NL7102199A (en) 1971-02-19 1971-02-19

Publications (1)

Publication Number Publication Date
GB1317869A true GB1317869A (en) 1973-05-23

Family

ID=19812514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB714772A Expired GB1317869A (en) 1971-02-19 1972-02-16 Device for converting an input voltage into an output signal current or vice versa

Country Status (10)

Country Link
US (1) US3825774A (en)
JP (1) JPS5231143B1 (en)
AU (1) AU469993B2 (en)
CA (1) CA943640A (en)
DE (1) DE2204419C3 (en)
FR (1) FR2125938A5 (en)
GB (1) GB1317869A (en)
IT (1) IT949124B (en)
NL (1) NL7102199A (en)
SE (1) SE368124B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30948E (en) 1975-05-27 1982-05-25 Rca Corporation Dynamic current supply

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7208148A (en) * 1972-06-15 1973-12-18
GB1490631A (en) * 1975-01-10 1977-11-02 Plessey Co Ltd Transistor arrangement having low charge storage
JPS5526030A (en) * 1978-08-14 1980-02-25 Hitachi Ltd Flat armature coil
US4330744A (en) * 1980-12-16 1982-05-18 Bell Telephone Laboratories, Incorporated Precision converter/isolation circuit
JPS58181307A (en) * 1982-03-30 1983-10-24 Fujitsu Ltd Differential circuit
DE3213838A1 (en) * 1982-04-15 1983-10-27 Philips Patentverwaltung Gmbh, 2000 Hamburg INTEGRATED CIRCUIT ARRANGEMENT WITH A VOLTAGE CURRENT TRANSFORMER
US4847520A (en) * 1987-08-31 1989-07-11 Linear Technology Corporation Fast PNP transistor turn-off circuit
DE3800803A1 (en) * 1988-01-14 1989-07-27 Philips Patentverwaltung AMPLIFIER CIRCUIT
NL8801103A (en) * 1988-04-28 1989-11-16 Philips Nv TRANSISTOR SWITCH WITH CONTROL CURRENT LIMITATION.
US4961046A (en) * 1988-08-19 1990-10-02 U.S. Philips Corp. Voltage-to-current converter
EP0355906B1 (en) * 1988-08-19 1993-11-03 Koninklijke Philips Electronics N.V. Voltage-to-current converters
US5128553A (en) * 1990-06-22 1992-07-07 Linear Technology Corporation Lateral PNP turn-off drive circuit
GB9617323D0 (en) * 1996-08-17 1996-09-25 Belyi Valerie High gain, wide band amplifier
US5834964A (en) * 1997-06-02 1998-11-10 Cherry Semiconductor Corporation Lateral PNP fast turn-on circuit
US6580326B2 (en) * 2001-05-25 2003-06-17 Infineon Technologies North America Corp. High-bandwidth low-voltage gain cell and voltage follower having an enhanced transconductance
EP1276229A1 (en) 2001-07-09 2003-01-15 STMicroelectronics S.r.l. Voltage follower and relative method of regulation
TWI642891B (en) * 2017-07-25 2018-12-01 日商古河電氣工業股份有限公司 Heat pipe and radiator

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119983A (en) * 1959-05-29 1964-01-28 Ibm Time pulse distributor
US3287577A (en) * 1964-08-20 1966-11-22 Westinghouse Electric Corp Low dissipation logic gates
US3320439A (en) * 1965-05-26 1967-05-16 Fairchild Camera Instr Co Low-value current source for integrated circuits
US3508081A (en) * 1966-08-17 1970-04-21 Honeywell Inc Circuit arrangement for supplying a current signal to one or two loads
US3549910A (en) * 1967-09-18 1970-12-22 Honeywell Inc Electric current-voltage converting circuit
US3649926A (en) * 1970-01-08 1972-03-14 Texas Instruments Inc Bias circuitry for a differential circuit utilizing complementary transistors
US3624426A (en) * 1970-10-05 1971-11-30 Bell Telephone Labor Inc Current source for semiconductor circuits
US3683270A (en) * 1971-02-22 1972-08-08 Signetics Corp Integrated circuit bilateral current source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30948E (en) 1975-05-27 1982-05-25 Rca Corporation Dynamic current supply

Also Published As

Publication number Publication date
IT949124B (en) 1973-06-11
NL7102199A (en) 1972-08-22
DE2204419B2 (en) 1974-10-17
SE368124B (en) 1974-06-17
DE2204419C3 (en) 1975-06-05
JPS5231143B1 (en) 1977-08-12
FR2125938A5 (en) 1972-09-29
US3825774A (en) 1974-07-23
AU3898272A (en) 1973-08-16
DE2204419A1 (en) 1972-08-31
CA943640A (en) 1974-03-12
AU469993B2 (en) 1976-02-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years