Power Supply Circuit - Panasonic KX-TG2220BXB Service Manual

KX-TG2220BXB / KX-TG2220BXF / KX-TG2220BXS / KX-TGA226BXB / KX-TGA226BXF / KX-TGA226BXS

16.3. Power Supply Circuit

Function:
The power supply voltage from AC adaptor is converted to the desired voltage of each block.
Circuit Operation:
This unit supplies the voltage to each block as shown below.
Note:
As for , see CIRCUIT BOARD (BASE UNIT) (P.80).
16.3.1. Charge Circuit
The voltage from the AC is supplied to the main charge circuits. Normal charge (220 mA) of maximum 9-hours is started soon after
the Handset is placed on the base unit. Then it changes to trickle charge (15 mA on the average) to prevent from overcharging.
Normal charge : Q150 is ON
Trickle charge : Q150 is OFF
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