Nokia 8208 Service Manual page 131

RM-384
System Module and User Interface
In active mode, charging is controlled by the PM's digital part. Charging voltage and current monitoring are
used to limit charging into a safe area.
The OVP limits the charging voltage to MaxVoltage.
MaxVoltage= 6.85V
Normal and extreme voltages
Energy management is mainly carried out in the two Application Specific Integrated Circuits (ASICs) BETTY
and AVILMA. These two circuits contains a number of regulators. In addition there are some external
regulators too. In the table below, normal and extreme voltages are shown when a BL-4C battery is used.
Issue1
Figure 56 Mobile terminal charger circuit
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