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Triac Driving(4)
MICOM
DESCRIPTION
Number 32 Terminal of Micom is put out Pulse Output, by way of Buffer it is driving Photo Triac is supplied
Trigger Signal.
Trigger Test of Triac is detected Zero Cross Part of AC input and it is triggered from Zero Cross part to Time
delay part according to Fan Speed. (Ref. Fig 4-1) SN1 is Snubber.
AC220V
TRIGGER
MOTOR
INPUT
IC4
KID 65004
7
32
MIDDLE SPEED
LOW SPEED
LOW SPEED
12V
TLP561
1
PT1
T1
SM3JZ47
2
R2
10
1K
1/2W
MEDIUM SPEED
Fig 4-1
25
N
L1
1
2
L
130 H
3A
SN1
0.1 F
120Ohm
HIGH SPEED
HIGH SPEED
AC 220V
TO MOTOR
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