JPS57145441A - Transmitting circuit - Google Patents

Transmitting circuit

Info

Publication number
JPS57145441A
JPS57145441A JP3083881A JP3083881A JPS57145441A JP S57145441 A JPS57145441 A JP S57145441A JP 3083881 A JP3083881 A JP 3083881A JP 3083881 A JP3083881 A JP 3083881A JP S57145441 A JPS57145441 A JP S57145441A
Authority
JP
Japan
Prior art keywords
circuit
emitter follower
emitter
input impedance
transistor
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
JP3083881A
Other languages
Japanese (ja)
Inventor
Yasufumi Kita
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.)
Denso Ten Ltd
Original Assignee
Denso Ten 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 Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to JP3083881A priority Critical patent/JPS57145441A/en
Publication of JPS57145441A publication Critical patent/JPS57145441A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
    • H03C3/222—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode using bipolar transistors

Landscapes

  • Transmitters (AREA)

Abstract

PURPOSE:To accelerate the input impedance and to reduce the distortion factor, by forming a buffer circuit with an emitter follower and constituting a parallel resonance circuit in relation to a transistor of the emitter follower. CONSTITUTION:A buffer circuit 28 is put between an oscillating circuit 1 which leads out the carrier wave and a variable reactance phase modulating circuit 29. The circuit 28 is formed with an emitter follower. A parallel resonance circuit which resonates with the carrier frequency is formed with a coil 25 connected between the emitter of a transistor 23 of the above-mentioned emitter follower and an earth, a coupling capacitor 27 which is provided between the emitter and a variable reactance phase modulating circuit 29 and the input impedance of the circuit 29. Owing to the function of the circuit 29, the variance is reduced for the oscillating frequency of the circuit 1 although the input impedance of the circuit 29 varies. As a result, the distortion factor is reduced.
JP3083881A 1981-03-03 1981-03-03 Transmitting circuit Pending JPS57145441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3083881A JPS57145441A (en) 1981-03-03 1981-03-03 Transmitting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3083881A JPS57145441A (en) 1981-03-03 1981-03-03 Transmitting circuit

Publications (1)

Publication Number Publication Date
JPS57145441A true JPS57145441A (en) 1982-09-08

Family

ID=12314830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3083881A Pending JPS57145441A (en) 1981-03-03 1981-03-03 Transmitting circuit

Country Status (1)

Country Link
JP (1) JPS57145441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10981536B2 (en) 2017-08-31 2021-04-20 Liang-Hsiung Wang Multi-point seat belt assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10981536B2 (en) 2017-08-31 2021-04-20 Liang-Hsiung Wang Multi-point seat belt assembly

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