Charger; Over Current Protection - Compal JHL90 Service Manual

JHL90 Service Manual
1 1
1 1
1 1
1 1
1 1
3.5

Charger

• Controlled by KB926 microprocessor from motherboard
• Temperature sense capability for the battery (charge active between 0°C ~
40°C)
• Fast charge current 3Amps (max.) for Li-Ion Battery at system off, approach
25W fast charge at system ON. (depend on system load)
• Trickle charge: Typical 600mA pre-charge current for Li-Ion Battery. All
trickle charge are controlled by KB926.
• Charge termination: When Fully-Charge bit is set, charger is terminated by
KB926
• When system is turned off, the charge time is 4.0 hrs typically from empty to
full for Li-Ion 9 cell battery. When system is turned off, the charge time is 3.5
hrs typically from empty to full for Li-Ion6 cell battery.
• Other battery services are presented by KB926 microprocessor includes
maximum charging timer, charging temperature range etc.
• Charger power:
Constant current mode: 3.0A±8%
Constant adapter current mode: 4.303A±6% (For 90W system)
Constant adapter current mode: 3.079A±6% (For 65W system)
BATT+ Constant Voltage mode: 12.6V±1% for Li-Ion Battery.
3.6

OVER Current protection:

• +3VALWP:
• +5VALWP:
• CPU_CORE:
• +1.8VP:
• +1.5VSP:
• +1.05VSP:
• VGA_core:
• VGA_1.8VSP:
4-8
1 1 0
1 1 1
1 1 1
1 1 1
1 1 1
>8.4A.
>8.4A.
>48A.
>10.44A.
>4.9A.
>14A
>27.36A
>4.39A
1 1 0
0 0 0
0 1 0
1 0 0
1 1 0