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步进电机控制器电路

发布时间:2020-07-01 02:20:24 阅读: 来源:热压机厂家

步进电机控制器电路 Stepper Motor Controller

本文引用地址: found this circuit in my files. I don't know where it came from, but it looks like I photocopied it from somewhere years ago. I have been told that it came from The Robot Builder's Bonanza, by Gordan McComb. Anyway, I thought that it should be fairly useful, so I decided to post it here. The circuit is very simple and inexpensive. This is good thing because most commercial stepper motor controller ICs are quite expensive. This circuit is built from standard components and can easily be adapted to be controlled by a computer. If you use cheap surplus transistors and stepper motor, the price of the circuit can be kept to under $10.

Schematic

Parts

PartTotal scriptionSubstitutionsR1, R2 ,R3, R441K 1/4W ResistorD1, D2, D3, D441N4002 Silicon DiodeQ1, Q2, Q3, Q44TIP31 NPN Transistor (See Notes)TIP41, 2N3055U114070 CMOS XOR Integrated CircuitU214027 CMOS Flip-FlopS11SPDT SwitchMISC1Case, Board, Wire, Stepper Motor

Notes1. You should be able to substitute any standard (2N3055, etc.) power transistor for Q1-Q4.

2. Every time the STEP line is pulsed, the motor moves one step.

3. S1 changes the motors direction.

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