JPS5480603A - Detection circuit of signal intensity - Google Patents

Detection circuit of signal intensity

Info

Publication number
JPS5480603A
JPS5480603A JP14837277A JP14837277A JPS5480603A JP S5480603 A JPS5480603 A JP S5480603A JP 14837277 A JP14837277 A JP 14837277A JP 14837277 A JP14837277 A JP 14837277A JP S5480603 A JPS5480603 A JP S5480603A
Authority
JP
Japan
Prior art keywords
signal
differential
transistor
signal intensity
amplitude limit
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
JP14837277A
Other languages
Japanese (ja)
Other versions
JPS5428681B2 (en
Inventor
Hidekazu Ishii
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 JP14837277A priority Critical patent/JPS5480603A/en
Publication of JPS5480603A publication Critical patent/JPS5480603A/en
Publication of JPS5428681B2 publication Critical patent/JPS5428681B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/12—Electrically-operated arrangements for indicating correct tuning
    • H03J3/14—Visual indication, e.g. magic eye

Landscapes

  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To increase the detection sensitivity without giving effect to the operation of the amplitude limit type amplifying stage, by making greater the input impedance and constituting the signal intensifier detector with the differential comparison circuit, in the circuit detecting the intensity of reception signal. CONSTITUTION:The signal intensity detector is constituted by the connection of a plurality of stages of differential comparators consising of transistors 60 and 61 and the amplitude limit amplifier is formed with a plurality of stage connections of the differential amplifier of transistors 32 and 33 and the emitter follower transistor 39. At no signal, since only the first transistor 1 constituting the differential comparator is conducted, no signal intensity signal output is picked up from the current Miller circuit (consisting of diode 29 and transistor 31). When signal input is present to the amplitude limit amplifier, current is flowed to the second transistor of the differential comparator and the signal intensity signal is obtained from the current Miller circuit mentioned above.
JP14837277A 1977-12-09 1977-12-09 Detection circuit of signal intensity Granted JPS5480603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14837277A JPS5480603A (en) 1977-12-09 1977-12-09 Detection circuit of signal intensity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14837277A JPS5480603A (en) 1977-12-09 1977-12-09 Detection circuit of signal intensity

Publications (2)

Publication Number Publication Date
JPS5480603A true JPS5480603A (en) 1979-06-27
JPS5428681B2 JPS5428681B2 (en) 1979-09-18

Family

ID=15451279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14837277A Granted JPS5480603A (en) 1977-12-09 1977-12-09 Detection circuit of signal intensity

Country Status (1)

Country Link
JP (1) JPS5480603A (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PLESSEY SEMICONDUCTORS INTEGRATED CIRCUIT DATABOOK=1973 *

Also Published As

Publication number Publication date
JPS5428681B2 (en) 1979-09-18

Similar Documents

Publication Publication Date Title
JPS5245242A (en) Automatic gain control circuit
JPS53108736A (en) Amplifier circuit
GB773470A (en) Improvements in or relating to detector-circuit arrangements
JPS5552605A (en) Detector circuit
JPS57164602A (en) Amplifier
JPS5580936A (en) Optical receiving circuit
JPS55143877A (en) Video intermediate frequency signal processing circuit
SU497709A1 (en) Device for amplifying electrical signals of semiconductor detectors
SU459837A1 (en) Amplitude Detector
JPS57164605A (en) Amplifier
JPS5574229A (en) Intermediate frequency amplitude limit amplifying circuit having signal intensity display function
JPS54158146A (en) Pulse amplifier circuit
JPS5437664A (en) Automatic gain adjusting circuit
JPS56162508A (en) Amplitude wave detecting circuit
JPS57164604A (en) Amplifier
ATE18837T1 (en) CIRCUIT ARRANGEMENT FOR AMPLIFICATION OF ELECTRICAL SIGNALS.
JPS56115925A (en) Optical signal detecting and amplifying circuit
JPS5443670A (en) Peak voltage position detection system
JPS5733838A (en) Signal intensity detecting circuit
JPS5574224A (en) Signal amplifying circuit
JPS54104701A (en) Signal detection circuit
JPS56126316A (en) Mos comparing integrated circuit
JPS54120844A (en) Leakage detector
JPS5636270A (en) Image pickup device
JPS5550748A (en) Signal meter driving circuit for receiver