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OR
A
cJ--
C
0
AND
---L----l
In
case
of
Input
to
either
A or
B,
an
output
CCbf-IlES
OUt
frOM
c.
When
A and
8 are off
(OV),
C is off
[OV).
When
either
A or
3 is on
(12V),
C is on { 12V).
This
can
Be si&bly
shown
in the
relay
circuit
on
the right-hand
side.
In
case
of
input
to
both
A
and
8.
an
output
comes
out
from
C.
When
A
and
B are
on
(IN),
C is on
(12V).
When
either
A or
8 is off
(OV),
C IS
off
(OV).
This
can
be
simply
shown
m
the
relay
circuit
on the
right-hancl
side.
In case isf input
to A, 8
is
grounded.
When
A is off
(OV),
3 is on I1 2VI.
When
A is on (12V),
f3 is off
IOVI.
This
can
be
simply
shown
in
the
relay
circuit
on the right-hand
side.
PROCESS
makes
a simplified
representation
of
cornpllcated
functions
of the circuk
functions
mainly
used:
1. Detection
of signals
2. Conversion
of signals
The
process
of
the
full
transistor
ignition
controt
unit
is as shown
in the
right-hand
figure.
Power
+
A
c
=
B
4--
_---
---
1
I Signal
converter
,
---+
Coil
signat
to Ix
;
: converted
into
i
-----+
on-off
signat.
I
L -----__-
A
Batters
-
-
-
Hah-wss
3ddy
Ground
Holder
BOX
I
Fusible
I ink
I
Motor
I
1
Coil
solenoid
Resistance
1
Variabet
resistance
1
Therm
ister
Diode
Speaker
1
1. ,_
,_
Cigar
I ighter
1
Heater
1 hminated
Diode
Zener
Diode
1
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