JPS5922509U - pulse width modulator - Google Patents

pulse width modulator

Info

Publication number
JPS5922509U
JPS5922509U JP10702282U JP10702282U JPS5922509U JP S5922509 U JPS5922509 U JP S5922509U JP 10702282 U JP10702282 U JP 10702282U JP 10702282 U JP10702282 U JP 10702282U JP S5922509 U JPS5922509 U JP S5922509U
Authority
JP
Japan
Prior art keywords
pulse width
width modulator
modulation circuit
audio signal
circuit
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
JP10702282U
Other languages
Japanese (ja)
Inventor
角田　義正
Original Assignee
株式会社日立国際電気
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 株式会社日立国際電気 filed Critical 株式会社日立国際電気
Priority to JP10702282U priority Critical patent/JPS5922509U/en
Publication of JPS5922509U publication Critical patent/JPS5922509U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はパルス幅変調器においてパルスに振幅。 変調をかけた゛場合とかけない場合の出力波形の説明図
、第２図は従来のパルス幅変調器の回路例図、第３図は
本考案によるパルス幅変調器の回路例図である。 １．３・・・！・・音声信号増幅器、（１は第２図にお
いては前置増幅器）、２・・・・・・音声信号差動増幅
器（第３図においては前置増幅器）、４・・・・・・サ
ンプリング用３角波発生器、５・・・・・・パルス幅変
調回路。Figure 1 shows the amplitude of a pulse in a pulse width modulator. An explanatory diagram of output waveforms with and without modulation, FIG. 2 is a circuit example diagram of a conventional pulse width modulator, and FIG. 3 is a circuit example diagram of a pulse width modulator according to the present invention. 1.3...! ...Audio signal amplifier (1 is a preamplifier in Fig. 2), 2...Audio signal differential amplifier (preamplifier in Fig. 3), 4...Sampling Triangular wave generator for use, 5...Pulse width modulation circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] パルス幅変調回路と振幅変調回路とを有するパルス幅変
調器において、上記両回路に共通の音声信号前置増幅器
に負帰還回路を接続したことを特徴とするパルス幅変調
器。1. A pulse width modulator having a pulse width modulation circuit and an amplitude modulation circuit, characterized in that a negative feedback circuit is connected to an audio signal preamplifier common to both circuits.
JP10702282U 1982-07-16 1982-07-16 pulse width modulator Pending JPS5922509U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10702282U JPS5922509U (en) 1982-07-16 1982-07-16 pulse width modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10702282U JPS5922509U (en) 1982-07-16 1982-07-16 pulse width modulator

Publications (1)

Publication Number Publication Date
JPS5922509U true JPS5922509U (en) 1984-02-10

Family

ID=30250216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10702282U Pending JPS5922509U (en) 1982-07-16 1982-07-16 pulse width modulator

Country Status (1)

Country Link
JP (1) JPS5922509U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890808A (en) * 1981-11-24 1983-05-30 Nec Corp Pulse width modulating amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5890808A (en) * 1981-11-24 1983-05-30 Nec Corp Pulse width modulating amplifier

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