- on Hobby & Modelling
- Published in issue 5/2004 on page 0
Everything you need to know to drive a stepper motor
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CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.
R1-R4,R8-R11 = 2kOhm 2 (4kOhm 7)
R5,R12 = 560Ohm (1kOhm 5)
R6,R7,R13,R14 = 1kOhm
R15,R16 = 1kOhm (2kOhm 2)
R17,R18 = 1MOhm
C1-C4 = 10nF
C5,C6 = 100nF
D1,D3 = LED, red, high efficiency
D2,D4 = LED, green, high efficiency
T1,T3,T6,T8 = TIP127 or IRF9520 or diode MBR745 *
T2,T4,T5,T7 = TIP122 or IRF520
T9,T10 = BS170
IC1 = 4049
IC2 = 4093B
14-way IC socket
16-way IC socket
Flash Micro Board software, Free Download, file no. 030203-11
* if you do not use bipolar transistors or FETs, diodes must be fitted! This applies to the use of a unipolar motor.