Circuit Description
6-14
Samsung Electronics - Contents may change without notice.
6-8 Rapid Travel Charger
Rapid Charger, TC59-US is composed of power supply part and control part.
6-8-1 Power Supply Part (Flyback type
SMPS circuit)
AC INPUT
AC input protection circuit and rectifier circuit
AC power through the AC plug is rectifiered to
DC power of high voltage through the D1, D2, D3,
D4, C1 and C2. MOV1 is used by protection circuit
from AC power surge. F1 is fuse to prevent over
current. L1 and L2 is EMI noise protection filter of
switching power.
Switching controller and transformer
U1 supplies constant voltage and constant current
to secondary circuit through the transformer. D5,
D6 absorbs the reverse voltage when transformer
winding turns off.
SECONDARY POWER
Output constant voltage circuit : U4, D24, R17
The HIC detects output voltage and compares it
with reference voltage in HIC. The error is FED to
primary circuit by U2B. The feeback error is
converted to current by U2A and D7. The current
controlls U1.
Secondary rectifier circuit : D21, C21
The secondary AC output of transformor is
rectified to DC voltage.
Secondary filter circuit : L20, C22
It minimizes the high frequency ripple noise,
which is caused by primary oscilation.
Reverse current protection circuit : D20
When power is off, it protects the reverse flow of
current from battery pack.
6-8-2 Control Part
MICOM CONTROLLER : U4
U4 is include u-COM to controlled whole charging
system and include following internal circuit :
-General Input/Output port
-A/D converter
-Reset delay circuit (Power on delay)
-Timer
It is carried following functions :
-Battery Recognition
-Charging termination condition detection
-Output short detection and output protection
-Temperature detection
BATTERY RECOGNITION CIRCUIT : U4
Battery identity detection determined to voltage
detection battery internal between ID and GND.
Summary of Contents for SCH-210
Page 2: ...Samsung Electronics Co Ltd GH68 60756A ...
Page 4: ...1 2 Samsung Electronics Contents may change without notice General Introduction ...
Page 10: ...Specification 2 6 Samsung Electronics Contents may change without notice ...
Page 16: ...Installation 3 6 Samsung Electronics Contents may change without notice ...
Page 22: ...4 6 Samsung Electronics Contents may change without notice NAM Programming ...
Page 52: ...Troubleshooting 7 8 Samsung Electronics Contents may change without notice 7 2 2 CDMA Mode ...
Page 54: ...Troubleshooting 7 10 Samsung Electronics Contents may change without notice ...
Page 56: ......
Page 58: ......
Page 64: ......
Page 68: ...8 14 Samsung Electronics Contents may change without notice Exploded View and its Parts List ...
Page 69: ......
Page 70: ......
Page 71: ......
Page 72: ......
Page 73: ......
Page 74: ......
Page 75: ......
Page 76: ......
Page 100: ...Electrical Parts List 10 24 Samsung Electronics Contents may change without notice ...
Page 101: ......
Page 102: ...11 2 Rapid Desk Top Charger Block Diagram DTC58 ...
Page 103: ...11 3 Hands free Kit Block Diagram ...
Page 104: ......
Page 105: ...11 4 Rapid Travel Charger Block Diagram ...
Page 106: ...11 5 CLA Cigarette Lighter Adaptor Block Diagram ...
Page 107: ...11 6 Logic Circuit Diagram ...
Page 108: ...11 7 Receiver Circuit Diagram ...
Page 109: ...11 8 Transmitter Circuit Diagram ...
Page 110: ...11 9 Desk Top Rapid Charger Circuit Diagram ...
Page 111: ...11 10 Hands Free Circuit Diagram ...
Page 112: ...11 10 1 Power Circuit Diagram ...
Page 113: ...11 10 2 Holder Circuit Diagram ...
Page 114: ...11 10 3 COMM CONT Circuit Diagram ...
Page 115: ...11 10 4 Audio Amp Circuit Diagram ...
Page 116: ...11 11 Cradle Circuit Diagram ...
Page 117: ...11 12 Car Adaptor Circuit Diagram ...
Page 118: ...11 13 Rapid Trvel Charger Circuit Diagram ...
Page 119: ...11 14 CLA Cigarette Lighter Adaptor Circuit Diagram ...