JPS5772407A - Amplifying circuit - Google Patents

Amplifying circuit

Info

Publication number
JPS5772407A
JPS5772407A JP55147584A JP14758480A JPS5772407A JP S5772407 A JPS5772407 A JP S5772407A JP 55147584 A JP55147584 A JP 55147584A JP 14758480 A JP14758480 A JP 14758480A JP S5772407 A JPS5772407 A JP S5772407A
Authority
JP
Japan
Prior art keywords
signal
wide
band
amplifier
modulated
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
JP55147584A
Other languages
Japanese (ja)
Inventor
Masaki Yoshimura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP55147584A priority Critical patent/JPS5772407A/en
Publication of JPS5772407A publication Critical patent/JPS5772407A/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)

Abstract

PURPOSE: To amplify a signal with a low noise in a wide dynamic range, by amplifying and demodulating the signal after modulating it by a wide-band signal.
CONSTITUTION: The narrow-band signal given from an input terminal IN is modulated in a modulator M1 consisting of a DBM and etc. by a signal having wide frequency components such as a square wave. This modulated signal is amplified by a wide band amplifier A0, and the amplification output is demodulated in a demodulator M2 by the same signal used for mudulation to obtain the original narrow- band signal. Since the spectrum of the signal is dispersed because of wide band amplification, the amplifier is not saturated. The noise generated in the amplifier is eliminated in the process of demodulation.
COPYRIGHT: (C)1982,JPO&Japio
JP55147584A 1980-10-23 1980-10-23 Amplifying circuit Pending JPS5772407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147584A JPS5772407A (en) 1980-10-23 1980-10-23 Amplifying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147584A JPS5772407A (en) 1980-10-23 1980-10-23 Amplifying circuit

Publications (1)

Publication Number Publication Date
JPS5772407A true JPS5772407A (en) 1982-05-06

Family

ID=15433646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147584A Pending JPS5772407A (en) 1980-10-23 1980-10-23 Amplifying circuit

Country Status (1)

Country Link
JP (1) JPS5772407A (en)

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