Circuit Description
Samsung Electronics
4-7
4-5 Desk-Top Rapid Charger
4-5-1 Description
This specification describes requirements of
DTC55 desktop charger. DTC55 is designed as
desk-top rapid charger for Li-ion battery for
SAMSUNG PCS Cellular phone SCH2000.
This charger include AC/DC adapter circuitry in
its own board. This characteristic offers operating
with direct indoor AC input without additional
AC/DC adapter unit.
Integrated AC/DC adapter circuitry adopts
switching mode power supply to keep lightness of
whole charger.
And it has two battery slot, the front one is
intended for cellular phone with battery and rear
one is for another battery only. Two bi-color LED
include charging status of each battery slot.
Charging current is automatically controlled by
programmed microprocessor inside of charger, to
proper to each type of battery.
4-5-2 Electrical Characteristic
AC IN PUT
¶U
AC input voltage : 110/220Vac
¶U
AC input voltage : 85Vac ~ 264Vac
¶U
AC input frequency : 60Hz
¶U
AC input ON/OFF cycle : MIN 5 sec
OUT PUT
¶U
Battery Charging Method : CC-CV mode
¶U
Battery Charging Current Range under CC
mode
-Front slot :
800mA
°æ
70mA
-Rear slot :
400mA
°æ
50mA
¶U
Battery Charging Voltage Range under CC
mode
-Front slot voltage setting (V/F : 5.1K)
4.1
°æ
0.05 VDC with 110Vac input and 180mA
load current.
- CV mode 4.05V ~ 4.15V
- Voltage range (4.05V ~ 4.15V), is to be tested
with 180mA ~ 600mA load range for Front slot.
- Rear slot voltage (V/F : 5.1K)
- CV mode 4.0V ~ 4.15V at 150mA load
¶U
Ripple & Noise
- Ripple & Noise Lim it : 60mVp_p MAX
- Test Condition
- Front : At output contact with 20MHz
bandwidth using resistive load 650mA and
nominal input.
¶U
Efficiency
- 55% MIN
- Efficiency is to be tested with 650mA and
150mA resisted load and 110Vac input.
Содержание SCH-2000
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Страница 33: ...Samsung Electronics 6 7 Troubleshooting 6 2 Transmitter Section ...
Страница 34: ...Troubleshooting 6 8 Samsung Electronics 6 3 Receiver Section ...
Страница 36: ...6 4 2 No Power Troubleshooting 6 10 Samsung Electronics ...
Страница 37: ...6 4 3 Hands Free RX Path Samsung Electronics 6 11 Troubleshooting ...
Страница 38: ...6 4 4 Hands Free TX Path Troubleshooting 6 12 Samsung Electronics ...
Страница 39: ...6 5 Desk Top Rapid Charger Samsung Electronics 6 13 Troubleshooting ...
Страница 40: ...6 6 Cigarette Lighter Adapter 6 6 1 LED ON Fault Troubleshooting 6 14 Samsung Electronics ...
Страница 41: ...6 6 2 Charge Fault Samsung Electronics 6 15 Troubleshooting ...
Страница 42: ...6 7 Travel Charger Troubleshooting 6 16 Samsung Electronics ...
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Страница 50: ...Exploded View and its Parts List 7 8 Samsung Electronics 7 7 Desk Top Rapid Charger Exploded View ...
Страница 53: ...Exploded View and its Parts List Samsung Electronics 7 11 7 10 Travel Charger TRAVEL CHARGER ASS Y GH44 40070A ...
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