JPS58174988U

JPS58174988U - Chiyotsupa control device

Info

Publication number: JPS58174988U
Application number: JP4064183U
Authority: JP
Inventors: 寛佐藤; 木脇　久勝; 磯部　栄介
Original assignee: 株式会社日立製作所
Priority date: 1983-03-23
Filing date: 1983-03-23
Publication date: 1983-11-22

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来例のブロック構成図、第２図は本考案の一
実施例のブロック構成図、第３図は第２図の各部信号の
タイムチャート、第４図は本考案の他の実施例を示すブ
ロック構成図、第５図は第　　□４図の各部信号のタイ
ムチャートである。２・・・サイリスタチョッパ、３・・・ｍｌｌ動抵Ｌ　
４・・・制動電流、５・・・チョッパスタート信号、７
・・・発振器、１７・・・オフ信号、１８．２３・・・
タイマ、２゜・・・移相信号、２１．２６・・・７′マ
ルス変換回路、２７・・・オフ信号。Fig. 1 is a block diagram of a conventional example, Fig. 2 is a block diagram of an embodiment of the present invention, Fig. 3 is a time chart of signals of each part in Fig. 2, and Fig. 4 is another embodiment of the present invention. A block configuration diagram showing an example, FIG. 5 is a time chart of signals of each part in FIG. 4. 2... Thyristor chopper, 3... ml dynamic resistance L
4... Braking current, 5... Chopper start signal, 7
...Oscillator, 17...Off signal, 18.23...
Timer, 2°...phase shift signal, 21.26...7' Mars conversion circuit, 27...off signal.

Claims

[Scope of utility model registration request]

A chopper control device for controlling the conduction rate of a chopper, characterized in that a start signal for permitting operation of the chopper is used as an input signal, and after the start signal is turned off, a plurality of off pulses are given to the chopper.