JPS58144925U - D/A conversion circuit - Google Patents

D/A conversion circuit

Info

Publication number
JPS58144925U
JPS58144925U JP4167782U JP4167782U JPS58144925U JP S58144925 U JPS58144925 U JP S58144925U JP 4167782 U JP4167782 U JP 4167782U JP 4167782 U JP4167782 U JP 4167782U JP S58144925 U JPS58144925 U JP S58144925U
Authority
JP
Japan
Prior art keywords
circuit
conversion circuit
level
voltage
control 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
JP4167782U
Other languages
Japanese (ja)
Inventor
康弘 笠原
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP4167782U priority Critical patent/JPS58144925U/en
Publication of JPS58144925U publication Critical patent/JPS58144925U/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]

図は、本考案によるＤ／Ａ変換回路の実施例を示す回路
図である。 ３・・・電圧制御回路、５・・・レベル変換回路、６・
・・Ｄ／Ａ変換回路、１６・・・定電圧駆動トランジス
タ。The figure is a circuit diagram showing an embodiment of a D/A conversion circuit according to the present invention. 3... Voltage control circuit, 5... Level conversion circuit, 6.
...D/A conversion circuit, 16...constant voltage drive transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 制御回路から出力されたパルス幅変調信号を所定のレベ
ルまで変換するレベル変換回路と、該レベル変換回路の
電源として定電圧源を有する電圧制御回路、前記レベル
変換回路の出力を被制御回路を制御するための直流信号
に変換するための積分回路から構成し、前記電圧制御回
路を定電圧制御することにより積分回路の入出力特性を
変化させずにその変換レベルだけを制御することを特徴
とするＤ／Ａ変換回路。A level conversion circuit that converts a pulse width modulation signal outputted from a control circuit to a predetermined level, a voltage control circuit having a constant voltage source as a power source for the level conversion circuit, and controlling a controlled circuit with the output of the level conversion circuit. It is characterized by comprising an integrating circuit for converting into a DC signal for the purpose of converting the voltage, and by controlling the voltage control circuit at a constant voltage, only the conversion level of the integrating circuit is controlled without changing the input/output characteristics of the integrating circuit. D/A conversion circuit.
JP4167782U 1982-03-26 1982-03-26 D/A conversion circuit Pending JPS58144925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4167782U JPS58144925U (en) 1982-03-26 1982-03-26 D/A conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4167782U JPS58144925U (en) 1982-03-26 1982-03-26 D/A conversion circuit

Publications (1)

Publication Number Publication Date
JPS58144925U true JPS58144925U (en) 1983-09-29

Family

ID=30052851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4167782U Pending JPS58144925U (en) 1982-03-26 1982-03-26 D/A conversion circuit

Country Status (1)

Country Link
JP (1) JPS58144925U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5286756A (en) * 1975-12-11 1977-07-19 Diesel Kiki Co Square wave amplitude limiting circuit
JPS5536697B2 (en) * 1973-03-29 1980-09-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536697B2 (en) * 1973-03-29 1980-09-22
JPS5286756A (en) * 1975-12-11 1977-07-19 Diesel Kiki Co Square wave amplitude limiting circuit

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