JPS55112015A - Voltage follower circuit - Google Patents

Voltage follower circuit

Info

Publication number
JPS55112015A
JPS55112015A JP1888379A JP1888379A JPS55112015A JP S55112015 A JPS55112015 A JP S55112015A JP 1888379 A JP1888379 A JP 1888379A JP 1888379 A JP1888379 A JP 1888379A JP S55112015 A JPS55112015 A JP S55112015A
Authority
JP
Japan
Prior art keywords
base
collector
current
output
current value
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.)
Pending
Application number
JP1888379A
Other languages
Japanese (ja)
Inventor
Teruo Inuzuka
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1888379A priority Critical patent/JPS55112015A/en
Publication of JPS55112015A publication Critical patent/JPS55112015A/en
Pending 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
    • H03F3/50—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

Landscapes

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

Abstract

PURPOSE:To realize a voltage follower circuit which can handle the large output current with the small idling current and obtain both the fast and slow rise in the case of the capacitive load. CONSTITUTION:The common connection is secured between the emitters of transistors Tr1 and 2, and the emitters are earthed via constant current source 12 of current value I2. The base of Tr1 is used as the input terminal, and the collector output is supplied to the current Miller circuit which is formed with Trs13 and 14 and features the equal input and output current value. The collector of Tr14 is earthed via constant current source 15 featuring the current value I1 which is 1/2 I2, and the base of Tr16 is connected to the collector of Tr14 each. And the collector of Tr16 is connected to positive power source +V, and at the same time the emitter is connected to the base of Tr2. The negative feedback is applied to the base of Tr2 via Trs13, 14 and 16 each, and both Trs1 and 2 are biased to the active region in the steady mode. On the other hand, the base of Tr2 is used as the output terminal and receives connection of load 4.
JP1888379A 1979-02-20 1979-02-20 Voltage follower circuit Pending JPS55112015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1888379A JPS55112015A (en) 1979-02-20 1979-02-20 Voltage follower circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1888379A JPS55112015A (en) 1979-02-20 1979-02-20 Voltage follower circuit

Publications (1)

Publication Number Publication Date
JPS55112015A true JPS55112015A (en) 1980-08-29

Family

ID=11983949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1888379A Pending JPS55112015A (en) 1979-02-20 1979-02-20 Voltage follower circuit

Country Status (1)

Country Link
JP (1) JPS55112015A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945707A (en) * 1982-09-09 1984-03-14 Rohm Co Ltd Full feedback amplifier
JPS6041350A (en) * 1983-08-17 1985-03-05 Fujitsu Ltd Rectifying circuit of bipolar code reproducing device
JPS63114313A (en) * 1986-10-30 1988-05-19 Nec Corp Dc clamp circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244142A (en) * 1975-10-06 1977-04-06 Hitachi Ltd Differential amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244142A (en) * 1975-10-06 1977-04-06 Hitachi Ltd Differential amplifier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945707A (en) * 1982-09-09 1984-03-14 Rohm Co Ltd Full feedback amplifier
JPS6041350A (en) * 1983-08-17 1985-03-05 Fujitsu Ltd Rectifying circuit of bipolar code reproducing device
JPH0325054B2 (en) * 1983-08-17 1991-04-04 Fujitsu Ltd
JPS63114313A (en) * 1986-10-30 1988-05-19 Nec Corp Dc clamp circuit

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