Datasheet

2.9 RECOMMENDED CHARGING CIRCUITS
Standard/Accelerated Charge
Charge circuit for charging cells/batteries at constant
current at normal charge and accelerated charge. The
charge process has to be interrupted by a timer at the
end of the charging period.
Trickle
Charge
U
E
I
Batt
I
C
I
Load
U
Batt
U
Diode
R
B
R
E
Load
Load
R
C
I
Batt
I
C
U
E
U
Batt
I
Load
U
CE
78XX
I
Batt
R
U
E
U
A
U
Batt
FIG. 8
FIG. 7
FIG. 9
U
Diode
I
C
R
E
=
U
A
I
Batt
R
1
=
U
Batt max.
at U
CE
= 0 V
U
E
= U
CE
+U
A
+U
Batt
U
E
–U
Batt max.
I
C
R
C
=
I
C
= I
Batt
+ I
Load
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