JPS5956999U

JPS5956999U - Stepping motor drive circuit

Info

Publication number: JPS5956999U
Application number: JP15124882U
Authority: JP
Inventors: 剛正木
Original assignee: 日置電機株式会社
Priority date: 1982-10-05
Filing date: 1982-10-05
Publication date: 1984-04-13
Also published as: JPS644319Y2

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 the drawing]

第１図は、この考案による駆動回路の構成を示すブロッ
ク図、第２図は、紙送り速度の時間に対する変化を示す
図、第３図は、第１図の各部の波　　、形を示す図であ
る。図中、１はステッピングモータ、２は記録紙、３は積分
回路、４はＶ／Ｆ変換回路、、５は水晶発振器、６はカ
ウンタ回路、７は速度設定回路、８は比較回路、１０は
フリップフロップ回路、１２゜１３．１４はナンド回路
、１５はマーカ駆動回路、１７はマークである。FIG. 1 is a block diagram showing the configuration of the drive circuit according to this invention, FIG. 2 is a diagram showing changes in paper feed speed over time, and FIG. 3 is a diagram showing the waves and shapes of each part of FIG. 1. It is. In the figure, 1 is a stepping motor, 2 is a recording paper, 3 is an integrating circuit, 4 is a V/F conversion circuit, 5 is a crystal oscillator, 6 is a counter circuit, 7 is a speed setting circuit, 8 is a comparison circuit, and 10 is a A flip-flop circuit, 12°13.14 a NAND circuit, 15 a marker drive circuit, and 17 a mark.

Claims

[Scope of utility model registration request]

(1) A first driving means including an integrating circuit and a V/F conversion circuit that converts its output voltage into a first driving pulse, a crystal oscillator, and dividing the frequency of its clock pulse and outputting it as a second driving pulse. and a second driving means including a counter circuit for controlling the front side. A stepping motor driving circuit that drives the stepping motor by appropriately switching the first and second driving means, the stepping motor driving circuit comprising: a speed setting circuit that sets the rotational speed of the stepping motor; and a rotational speed set by the speed setting circuit. The counter circuit has a frequency dividing ratio that is switched in accordance with the signal, and a reference power source that has a voltage level that is switched in response to the rotational speed signal, and a switching pulse is generated when the output voltage of the integration circuit reaches the reference voltage. and a drive pulse switching circuit that switches and controls the first and second drive pulses based on the outputs of the speed setting circuit and the comparison circuit, and the drive pulse switching circuit is configured to control the rotational speed. When the rotational speed is set below a predetermined value, the stepping motor is driven by the second drive pulse, and when the rotation speed is set to exceed a predetermined value, the stepping motor is driven by the first drive pulse. Along with slewing up,
Starting a frequency division operation of the counter circuit to switch to the second drive pulse when the first drive pulse is inverted after the switching pulse from the comparison circuit is input;
A stepping motor drive circuit featuring:

(2) Utility model registration In claim (1), the drive pulse switching circuit receives the first drive pulse and writes a specific mark indicating a through-up period of the stepping motor on a recording paper. A stepping motor drive circuit, characterized in that a marker drive circuit is connected.