JPS59195995U

JPS59195995U - Stepping motor drive device

Info

Publication number: JPS59195995U
Application number: JP8047783U
Authority: JP
Inventors: 湯本　俊治; 一広佐藤
Original assignee: 長野日本無線株式会社
Priority date: 1983-05-28
Filing date: 1983-05-28
Publication date: 1984-12-26
Also published as: JPS6321199Y2

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図は従来の駆動装置を示す構成図、第２図はその動
作を説明するための波形図、第３図は本考案装置の一実
施例を示す構成図、第４図は本考案を説明するためのブ
ロック図、第５図、第６図及び第７図は本考案を説明す
るための波形図、第８図は他の実施側番示す要部の概略
的構成図である。１・・・・・・モータパルス供給端子、３Ａ、　　３Ｂ
・・・・・・モータの巻線、６・・・・・・相切換信号
作成回路、９Ａ。９Ｂ・・・・・・相切換信号、ＴｒｉＡ、　Ｔｒ２Ａ・
・・・・・スイッチング素子、ＲＩＡ・・・・・・検出
抵抗、７Ａ・・・・・・増幅器、８Ａ・・・・・・パル
ス幅変調器、Ｒ２，Ｒ３，Ｒ４及びＲ５・・・・・・基
準電圧を第１、第２、第３の段階の高、中及び低の程度
の電圧を得るための抵抗、Ｔｒ３．Ｔｒ４・・・・・・
抵抗の接続状態を切換えるためのスイッチング素子。FIG. 1 is a configuration diagram showing a conventional drive device, FIG. 2 is a waveform diagram for explaining its operation, FIG. 3 is a configuration diagram showing an embodiment of the device of the present invention, and FIG. FIG. 5, FIG. 6, and FIG. 7 are waveform diagrams for explaining the present invention, and FIG. 8 is a schematic configuration diagram of main parts showing another implementation side number. 1...Motor pulse supply terminal, 3A, 3B
...Motor winding, 6...Phase switching signal generation circuit, 9A. 9B... Phase switching signal, TriA, Tr2A・
...Switching element, RIA...Detection resistor, 7A...Amplifier, 8A...Pulse width modulator, R2, R3, R4 and R5... . . . Resistor for obtaining high, medium and low reference voltages of the first, second and third stages, Tr3. Tr4...
A switching element for switching the connection state of a resistor.

Claims

[Scope of utility model registration request]

In the current inflow path to each winding that constitutes the stepping motor, there is a switching element for determining whether or not current can flow into the winding based on a phase switching signal, and a switching element that turns on/off the current inflow to the winding. A resistor is inserted in series for extracting a detection voltage due to current flowing into the element and the winding, and an amplifier is connected to the output side of the amplifier for comparing the reference voltage from a reference voltage generation source and the detection voltage. In the constant current chopper type stepping motor drive circuit comprising a pulse width modulator for driving the switching element for turning on and off, the reference voltage generation source generates a reference voltage as a reference voltage from the reference voltage generation source. A plurality of resistors and a switching element for switching the connection state of the plurality of resistors to obtain a first reference voltage, a second reference voltage, and a third reference voltage corresponding to high, medium, and low levels, respectively. a winding current corresponding to at least low speed rotation of the stepping motor by a third reference voltage;
A stepping motor drive characterized in that depending on a first reference voltage, a winding current necessary to start high-speed rotation is supplied to the winding, and depending on the first reference voltage, a winding current sufficient to continue the high-speed rotation is supplied to the winding. Device.