JPS61329U

JPS61329U - Digital to analog conversion circuit

Info

Publication number: JPS61329U
Application number: JP8461984U
Authority: JP
Inventors: 一夫奥谷
Original assignee: 三菱電機株式会社
Priority date: 1984-06-05
Filing date: 1984-06-05
Publication date: 1986-01-06

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

[Brief explanation of drawings]

第１図は従来のデイジタル●アナログ変換回路の電気回
路図、第２図Ａ，Ｂは従来例ならびにこの考案に係る
デイジタル・アナログ変換回路の動作説明用のパルス波
形図、第３図は従来例のアナログ出力電圧の変化特性図
、第４図はこの考案に係るディジタル・アナログ変換回
路の一例を示す電気回路図、第５図はどの考案の要部の
変形例を示す電気回路図、第６図はこの考案もののアナ
ロ−グ出力電圧を従来例と比較して示す変化特性図であ
る。、７・・・抵抗器、８・・・コンデンサ、９・・・グイ
オニ−ド、１０・・・抵抗器。なお、図中同一符号は同一もしくは相当部分を示す。Figure 1 is an electrical circuit diagram of a conventional digital-to-analog conversion circuit, Figures 2A and B are pulse waveform diagrams for explaining the operation of the conventional example and the digital-to-analog conversion circuit according to this invention, and Figure 3 is a conventional example. FIG. 4 is an electric circuit diagram showing an example of the digital-to-analog conversion circuit according to this invention, FIG. 5 is an electric circuit diagram showing a modification of the main part of the invention, and FIG. The figure is a change characteristic diagram showing the analog output voltage of this invention in comparison with a conventional example. , 7...Resistor, 8...Capacitor, 9...Gionide, 10...Resistor. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

It is characterized by comprising a resistor and a capacitor, comprising an integrating circuit for converting a pulse width modulation signal into a DC signal, and having a series circuit of a diode and a resistor connected in parallel to the resistor of the integrating circuit. Digital to analog conversion circuit.