JPS566504A - Balanced modulator - Google Patents

Balanced modulator

Info

Publication number
JPS566504A
JPS566504A JP8069079A JP8069079A JPS566504A JP S566504 A JPS566504 A JP S566504A JP 8069079 A JP8069079 A JP 8069079A JP 8069079 A JP8069079 A JP 8069079A JP S566504 A JPS566504 A JP S566504A
Authority
JP
Japan
Prior art keywords
amplifying circuit
differential amplifying
transistors
transistor
temperature compensating
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
JP8069079A
Other languages
Japanese (ja)
Inventor
Toshiji Nishimura
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP8069079A priority Critical patent/JPS566504A/en
Publication of JPS566504A publication Critical patent/JPS566504A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H03C1/54—Balanced modulators, e.g. bridge type, ring type or double balanced type
    • H03C1/542—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes
    • H03C1/545—Balanced modulators, e.g. bridge type, ring type or double balanced type comprising semiconductor devices with at least three electrodes using bipolar transistors

Landscapes

  • Amplitude Modulation (AREA)

Abstract

PURPOSE:To ensure the balanced modulation which is steady to the temperature change and can be carried out assuredly even with a minute amount of the input carrier, by providing the temperature compensating element. CONSTITUTION:Transistors 22 and 24 form the 1st differential amplifying circuit; transistors 29 and 31 form the 2nd differential amplifying circuit; transistors 41 and 44 from the 3rd differential amplifying circuit; and transistors 42 and 45 form the 4th differential amplifying circuit respectively. The temperature compensating emitter of the 1st transistor 40 is connected to the collector of one transistor 29 forming the 2nd differential amplifying circuit; and the temperature compensating emitter of the 2nd transistor 43 is connected to the collector of the other transistor 31 each.
JP8069079A 1979-06-28 1979-06-28 Balanced modulator Pending JPS566504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8069079A JPS566504A (en) 1979-06-28 1979-06-28 Balanced modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8069079A JPS566504A (en) 1979-06-28 1979-06-28 Balanced modulator

Publications (1)

Publication Number Publication Date
JPS566504A true JPS566504A (en) 1981-01-23

Family

ID=13725322

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8069079A Pending JPS566504A (en) 1979-06-28 1979-06-28 Balanced modulator

Country Status (1)

Country Link
JP (1) JPS566504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521472A2 (en) * 1991-07-02 1993-01-07 Canon Kabushiki Kaisha Image signal processing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521472A2 (en) * 1991-07-02 1993-01-07 Canon Kabushiki Kaisha Image signal processing device
EP0521472A3 (en) * 1991-07-02 1994-08-24 Canon Kk Image signal processing device

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