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555_stepper_pulse_generator
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13
SQUARE WAVE GENERATOR FOR STEPPER MOTOR
1
2
CN1
PULSE OUT
+
C3
2.2uF/16V
PR1
100K
C2
0.1uF
R1
2.2K
J1
JUMPER
R2
5.6K
C1
0.22uF
C5
0.1uF
1
2
CN2
5V-12V DCR3
470K
D1
LED
+
C4
10uF/16V
VCC VCCVCC +V
GND
GND
3
481
5
2
6
7
U1
LM555
JUMPER FREQ RANGE SET
CN1 SQUARE WAVE OUT
CN2 SUPPLY IN
PR1 FREQUENCY ADJ.
PULSE GENERATOR FOR STEPPER MOTOR