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SQUARE WAVE GENERATOR FOR STEPPER MOTOR

CN2

R3 470K

VCC + C5 0.1uF

+V GND R1 2.2K

R2 5.6K

1 2 5V-12V DC

4

VCC

8

VCC

7 CN1 D1 LED

10uF/16V C4

PR1 100K

3 GND U1 LM555

C1 0.22uF

6

1 2 PULSE OUT

5

JUMPER FREQ RANGE SET PR1 FREQUENCY ADJ. CN2 SUPPLY IN CN1 SQUARE WAVE OUT

1

2 J1 JUMPER +

C2 0.1uF

C3 2.2uF/16V

PULSE GENERATOR FOR STEPPER MOTOR

13

Datasheet 555  

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