JPS5510252A - Transmission output control circuit - Google Patents

Transmission output control circuit

Info

Publication number
JPS5510252A
JPS5510252A JP8299578A JP8299578A JPS5510252A JP S5510252 A JPS5510252 A JP S5510252A JP 8299578 A JP8299578 A JP 8299578A JP 8299578 A JP8299578 A JP 8299578A JP S5510252 A JPS5510252 A JP S5510252A
Authority
JP
Japan
Prior art keywords
transmission output
diode
variation
voltage
control
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
JP8299578A
Other languages
Japanese (ja)
Inventor
Masami Kobori
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.)
Kanda Tsushin Kogyo Co Ltd
Original Assignee
Kanda Tsushin Kogyo 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 Kanda Tsushin Kogyo Co Ltd filed Critical Kanda Tsushin Kogyo Co Ltd
Priority to JP8299578A priority Critical patent/JPS5510252A/en
Publication of JPS5510252A publication Critical patent/JPS5510252A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

PURPOSE:To stabilize a transmission output by compensating the parameter of a transistor with a temperature coefficient connected to the output side of transmitting carrier detector, by applying a reference voltage of small power to a compensating diode, and by removing fine variation in transmission output. CONSTITUTION:To the transmission output circuit connected between transmitting carrier detector 9 and driving amplifier 3, Darlington-connected transistors Tr11 and Tr12 and control Tr9 are connected and the temperature variation of base- emitter voltage VBE of Tr12 is compensated by Tr11. Further, resistance 15 and diode 14 connected in series are connected to the base of Tr12 and temperature characteristics of Tr12 and diode 14 cancel to increase the compensation effect of the variation caused by the temperature variation, thereby stably amplifying fine variation in voltage by the reference voltage of diode 14. Then, the control voltage of control Tr9 is stabilized and the stabilized transmitting power is sent out from antenna 7.
JP8299578A 1978-07-10 1978-07-10 Transmission output control circuit Pending JPS5510252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8299578A JPS5510252A (en) 1978-07-10 1978-07-10 Transmission output control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8299578A JPS5510252A (en) 1978-07-10 1978-07-10 Transmission output control circuit

Publications (1)

Publication Number Publication Date
JPS5510252A true JPS5510252A (en) 1980-01-24

Family

ID=13789797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8299578A Pending JPS5510252A (en) 1978-07-10 1978-07-10 Transmission output control circuit

Country Status (1)

Country Link
JP (1) JPS5510252A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127434A (en) * 1982-01-25 1983-07-29 Mitsubishi Electric Corp Communication equipment
WO2006112669A1 (en) * 2005-04-21 2006-10-26 Berex Corporation Temperature compensation bias circuit for the darlington amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127434A (en) * 1982-01-25 1983-07-29 Mitsubishi Electric Corp Communication equipment
JPS6324570B2 (en) * 1982-01-25 1988-05-21 Mitsubishi Electric Corp
WO2006112669A1 (en) * 2005-04-21 2006-10-26 Berex Corporation Temperature compensation bias circuit for the darlington amplifier

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