When
the battery pack
is
fully
charged, the built-in thermal
switch in the pack
is
turned
off
and
cuts
off
the 8 charging
terminal. Thus, H level
is
applied
to
Pin
1
and
2
of
IC2,
Pin
5
of
IC1
and
the flip-flop
is
turned
to
reverse
condition
and
Pin
4
of
IC1
becomes L level. This puts
out
H level at
Pin
10
of
IC2
and
turns
04
off,
and
any charging current
does
not
flow
even
if
the thermal switch
has
been
turned on
when the battery pack
is
cooled.
When
charging IC-CM3,
S3
is
turned on
and
the charging
current (25mA)
flows through R37.
Pin
5
and
8
of
IC1
are
grounded through
S5,
Pin
10
of
IC2.
is
L level
and
04
emitter
is
grounded through R10. Thus,
the charging current flows
until
the battery pack
is
removed
from the charger.
When
the battery pack
is
removed from the charger,
S5
is
turned
off
and
Pin
5
of
IC1
is
grounded through
S5.
This
resets
the flip-flop
for
another charging.
When
charging IC-CM4 inserted nickel-cadmium batteries
S4
is
turned on
and
the charging current (45mA) flows
through R38. The logic circuit works the
same
as
charging
IC-CM3.
SPECIFICATIONS OF
BATTERY
PACKS
IC-CM2 IC-CM3 IC-CM4 IC-CM4 IC-CM5
N-425A
R
N-250A
A
AA
Size
AA
Size
N-425A
R
Cells
(X 6) (X
7)
Alkaline
Nickel-
(X
9)
[Capacity]
[400mAH]
[250mAH]
(X 6)
Cadmium
[400mAH]
(X
6)
Voltage
7.2V
8.4V
9.0V
7.2V 10.BV
RF
Output
1.0W 1.5W 1.5W 1.0W 2.3W
Charging
Rapid
Normal
----------
Normal
Rapid
Charging
Time
1
-1.SH
15H
----------
15H 1
-1.SH
Suitable
CM-30
/
CM-30
CM-25U
CM-30
CM-30
Charger
IC-CM1
Charging Current
600mA
25mA
-----------
45mA
600mA
Ambient
Temperature
+10°-+40°C
0°-+45°C
~
o
0
-+45°C
+1o
0
-+40°C
Overcharge Protect
0
x
----------
x
0
Current
~
~
/
8
~
Selector
Height
39m/m 39m/m
49m/m
49m/m
60m/m
Battery Replace
x x
0 0
x
A-4
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