JPS5666916A - Automatic gain control circuit for burst signal - Google Patents

Automatic gain control circuit for burst signal

Info

Publication number
JPS5666916A
JPS5666916A JP14197879A JP14197879A JPS5666916A JP S5666916 A JPS5666916 A JP S5666916A JP 14197879 A JP14197879 A JP 14197879A JP 14197879 A JP14197879 A JP 14197879A JP S5666916 A JPS5666916 A JP S5666916A
Authority
JP
Japan
Prior art keywords
burst
changed
voltage
burst signal
amplifier
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.)
Granted
Application number
JP14197879A
Other languages
Japanese (ja)
Other versions
JPS6341454B2 (en
Inventor
Masaaki Atobe
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 JP14197879A priority Critical patent/JPS5666916A/en
Publication of JPS5666916A publication Critical patent/JPS5666916A/en
Publication of JPS6341454B2 publication Critical patent/JPS6341454B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3073—Circuits generating control signals when no carrier is present, or in SSB, CW or pulse receivers

Abstract

PURPOSE:To make constant the power, by controlling the charging voltage of an AGC circuit according to the length of a burst signal of burst shape signals. CONSTITUTION:A burst shape output signal P is detected at an envelope detector 12 and input to a broadband amplifier 15. The broad band amplifier has peaking circuit C2, L1 to obtain higher gain at higher frequency. Thus, by setting the amplitude frequency characteristics so that the gain of the frequency component with shorter burst time can be increased, the hold voltage of a capacitor C1 can be kept constant, so that the peak hold charge voltage is changed with the burst time, even if the burst time is changed. That is, the control voltage for the amplifier 11 can be dependent of the amplitude of burst signal, even if the burst time is changed.
JP14197879A 1979-11-05 1979-11-05 Automatic gain control circuit for burst signal Granted JPS5666916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14197879A JPS5666916A (en) 1979-11-05 1979-11-05 Automatic gain control circuit for burst signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14197879A JPS5666916A (en) 1979-11-05 1979-11-05 Automatic gain control circuit for burst signal

Publications (2)

Publication Number Publication Date
JPS5666916A true JPS5666916A (en) 1981-06-05
JPS6341454B2 JPS6341454B2 (en) 1988-08-17

Family

ID=15304540

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14197879A Granted JPS5666916A (en) 1979-11-05 1979-11-05 Automatic gain control circuit for burst signal

Country Status (1)

Country Link
JP (1) JPS5666916A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114066A2 (en) * 1983-01-14 1984-07-25 Nec Corporation Automatic gain control circuit for burst signal communication system
JPS60145713A (en) * 1984-01-10 1985-08-01 Fujitsu Ltd Automatic gain control system
EP0654898A2 (en) * 1993-11-19 1995-05-24 Matsushita Communication Industrial Co., Ltd. Transmission circuit
US20090178633A1 (en) * 2006-04-25 2009-07-16 Manousos Pattakos Variable valve actuation
WO2013054601A1 (en) * 2011-10-13 2013-04-18 三菱電機株式会社 Front-end amplifier

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114066A2 (en) * 1983-01-14 1984-07-25 Nec Corporation Automatic gain control circuit for burst signal communication system
JPS60145713A (en) * 1984-01-10 1985-08-01 Fujitsu Ltd Automatic gain control system
JPH0325048B2 (en) * 1984-01-10 1991-04-04 Fujitsu Ltd
EP0654898A2 (en) * 1993-11-19 1995-05-24 Matsushita Communication Industrial Co., Ltd. Transmission circuit
EP0654898A3 (en) * 1993-11-19 1996-01-24 Matsushita Communication Ind Transmission circuit.
US5659893A (en) * 1993-11-19 1997-08-19 Matsushita Communication Industrial Co., Ltd. Transmission circuit with improved gain control loop
US20090178633A1 (en) * 2006-04-25 2009-07-16 Manousos Pattakos Variable valve actuation
US8166948B2 (en) * 2006-04-25 2012-05-01 Manousos Pattakos Throttle-less engine with improved variable valve system
WO2013054601A1 (en) * 2011-10-13 2013-04-18 三菱電機株式会社 Front-end amplifier
CN103636121A (en) * 2011-10-13 2014-03-12 三菱电机株式会社 Front-end amplifier
JPWO2013054601A1 (en) * 2011-10-13 2015-03-30 三菱電機株式会社 Front-end amplifier

Also Published As

Publication number Publication date
JPS6341454B2 (en) 1988-08-17

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