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IC BLOCK DIAGRAM
IC901 LB1641 (Motor driver)
IC951 L780S12
INI
GNC
}
P1
17
T I
#
1" '4'
111
1
Input
Logic
Circuit
r
—--l---'
Input
output
Act
ion
INI
IN2
OUT1
OUT2
. .
0
0
0
0
Brake
1
0
1
0
Normal (Reverse) Ratary
o
I
o
1
Reverse(Ncfmal) Rolary
1
1
0
0
Brake
IC911 BU4013B(Dual Dtype
F/F)
Vnn
02
m
CLOCK2
RESET2
DATA2
SET2
.-
Q1
5
CLOCK1 RESET1
OATAl
SET 1
%s
)1N2
IC913 BU4069B(Hex inverter)
VDD
16
06
15
05
14
04
11
01
12
02
13
03
Vss
–24-
INWT (
GNo(
I
Sup+rheatd
Protector
!
1-
IC903 NJM79M15FA
WTPUT
(-15V 3-TerminalConstantVoltageRegulated Power
Supply)
I
I
!
Start
w
IC903 XRA14741 (Quad Ope. Amplifier)
., ,;
. .
lNPuT4-
GND
!NWT3-
OLITPUTL
INPUT4+
INPUT3+
0UTPUT3
'm
';'.=
lNpuTI+
INPIJT2+
OUT PIJT2
lNPUTl
-
V+
INPUT
2-
COMMON
OUTPUT
INPUT
IC912 BU4011 (Quad 2-input nand gate)
', VDD
m
IN
IN
OUT
OUT
IN
IN
Vss
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