Система питания ноутбука

Целевая аудитория
Все электротехники, такие как:
PE, TE, FAE, CSD
Необходимые знания
Электронные схемы
Цифровые логические схемы
Использование мульти-метра
Содержание курса
Система питания и последовательности
Поиск неисправностей
Выводы
Принцип передачи мощности( ШИМ-Plus импульсной модуляции & LDO –Low Drop-Out regulator )
Зарядное устройство
После этого курса Вы будите
Уметь находить неисправности в цепях питания
Для кого эта презентация

1.1 Введение в NB системы питания
1.2 Последовательность питания и управления
2.1 Блок-схема цепей питания
2.2 NB power application
2.3 Multi–power device
3.1 No power debug notice & sequence
3.2 DCBATOUT short(短路) to GND
3.2 S5 Power No Good
3.3 Power on logic No Good
План:
1. Архитектура цепей питания:
3. No power debug :
2. Введение в схему питания:
План

Как мы знаем, ноутбук питание обеспечивается адаптерами (19V) или батарей (14.8V). Тем не менее, различные (不同 的) напряжения питания не подходят (適合) все устройства к каждому ноутбуку. Так ряд действий по передаче напряжения необходимы для питания всех устройств. (Могут возникнуть проблемы (發生) во время передачи напряжения.)
Как ноутбук портативный компьютер, экономя энергию также очень важно, когда система находится в режиме работы от батареи.
В этом уроке, мы будем использовать схему питания Юхина внедрить систему питания ноутбука.
• Foreword :
Foreword

1.1 NB (Yuhina) power system : AUX Power
PWM
Charger
P-MOS
SI4425
P-MOS
SI4425
PWM
MAX1999
PWM
MAX1715
AD+
BT+
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
5V_S5
Max1999_LDO5
5V_AUX_S5
+5V_UP_S5
3D3V_S5
DCBATOUT
N-MOS
FD9412
LDO
G913C
5V_S3
3D3V_S3
5V_S0
3D3V_S0
3D3V_LAN_S5
1D5V_S5
2D5V_S3
2D5V_S0
LDO
G913C
1D25V_S0
S5 Power
S3 Power
S0 Power
PWM
MAX1546
VCC_CORE_S0
1D5V_S0
1
4
3
2
1
6
6
5
7
6
4
7
7
5
1.Power system architecture 1 of 4

1.1 NB (Yuhina) power system : S5 Power
PWM
MAX1645
Charger
P-MOS
SI4425
P-MOS
SI4425
PWM
MAX1999
PWM
MAX1715
AD+
BT+
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
5V_S5
Max1999_LDO5
5V_AUX_S5
+5V_UP_S5
3D3V_S5
DCBATOUT
N-MOS
FD9412
LDO
G913C
5V_S3
3D3V_S3
5V_S0
3D3V_S0
3D3V_LAN_S5
1D5V_S5
2D5V_S3
2D5V_S0
LDO
G913C
1D25V_S0
S5 Power
S3 Power
S0 Power
PWM
MAX1546
VCC_CORE_S0
1D5V_S0
1
4
3
2
1
6
6
5
7
6
4
7
7
5
1.Power system architecture 2 of 4

1.1 NB (Yuhina) power system : S3 Power
PWM
MAX1645
Charger
P-MOS
SI4425
P-MOS
SI4425
PWM
MAX1999
PWM
MAX1715
AD+
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
5V_S5
Max1999_LDO5
5V_AUX_S5
+5V_UP_S5
3D3V_S5
DCBATOUT
N-MOS
FD9412
LDO
G913C
5V_S3
3D3V_S3
5V_S0
3D3V_S0
3D3V_LAN_S5
1D5V_S5
2D5V_S3
2D5V_S0
LDO
G913C
1D25V_S0
S5 Power
S3 Power
S0 Power
PWM
MAX1546
1D5V_S0
1
4
3
2
1
6
6
5
7
6
4
7
7
5
BT+
1.Power system architecture 3 of 4

PWM
MAX1645
Charger
P-MOS
SI4425
P-MOS
SI4425
PWM
MAX1999
PWM
MAX1715
AD+
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
5V_S5
Max1999_LDO5
5V_AUX_S5
+5V_UP_S5
3D3V_S5
DCBATOUT
N-MOS
FD9412
LDO
G913C
5V_S3
3D3V_S3
5V_S0
3D3V_S0
3D3V_LAN_S5
1D5V_S5
2D5V_S3
2D5V_S0
LDO
G913C
1D25V_S0
S5 Power
S3 Power
S0 Power
PWM
MAX1546
1D5V_S0
1
4
3
2
1
6
6
5
7
6
4
7
7
5
BT+
1.1 NB (Yuhina) power system : S0 Power
1.Power system architecture 4 of 4

Почему мы должны различать тип питания среди (在 ... 之中) AUX, S5,
S3, S0? Как мы их контролировать?
Вот ответ:
• AUX Power : Для использования кнопки питания, он включен с батареей только до нажатия на кнопку питания.
• S5 Power : Для кнопки питания и после использования на LAN, он включен с адаптером, прежде чем нажать кнопку питания.
• S3 Power : Для stand_by режиме использования, он включен с южного моста PM_SLP_S3 # после нажатия кнопки питания.
• S0 Power : Для нормального использования режима, он включен с южного моста -PM_SLP_S4 # после нажатия на кнопку питания.
1.2 Последовательность питания и управления：

AUX
Power
S5
Power
S3
Power
S0
Power
BAT only
AD+
or
AUX_S5
3D3V_S5
1D5V_S5
DCBATOUT
AC_IN
PM_SLP_S4#
PM_SLP_S3#
5V_S3
3D3V_S3
2D5V_S3
5V_S0
3D3V_S0
2D5V_S0
1D25V_S0
Vco_S0
For power button use
For stand_by
mode use
For normal mode use
For power button &
wake on LAN use
Block Diagram :

DCBATOUT
a. Когда батарея или адаптер подключен в (插入), DCBATOUT будет вводить питание в MAX1999 контактный 20_V +, и пин-код 18 - LDO5 обеспечит питание 5V_AUX_S5.
c. 5V_AUX_S5 никогда не выключен, когда MAX1999 работает, если что-то пойдет не так с MAX1999.
b. Сила AUX используется на
Мощность по логике и южного моста.Как только батареи, ток утечки должен быть как можно меньше. В общем, около 5 ~ 6 мА.
1.2.1 AUX_Power ：

Сигнал AC_IN потянули, когда адаптер был вставлен.
Мощность по логике вывода MAX1999_SD, чтобы вызвать 3D3V_S5. В результате, когда адаптер вставляется, но пока нажата кнопка питания, S5_power будет включен первым.
Hi
Hi
Hi
Hi
Low
a. Circuit operation – Power on logic :
1
1
2
2
1.2.2 S5_Power：

When MAX1999 – Pin 3(ON3) pull hi, the 3D3V_S5 will be turn on.
b. Circuit operation – 3D3V_S5 :

When AC_IN is HI,
The MOS-U13 will be turned on, and 3D3V_LAN_S5 will be generated.
This power is for wake on LAN function.
Мощность 1D5V_S5 LDO будет включен в 3D3V_S5.
Эта сила для южного моста для пробуждения по локальной сети использования. Потому что адаптер питания вставлен уже ток утечки батареи не относятся в настоящее время。
1D5V_S5 LDO
Hi
Hi
Hi
Low
1
2
1
2
3
3
c. Circuit operation – LAN & 1D5V_S5 power :

When the power button was pressed, south bridge will pull hi the PM_SLP_S4#, and 5V_S3 power will be generated .
1.2.3 S3_Power：
a. Circuit operation – 5V_S3 :
1.2.3 S3_Power：

3D3V_S3 power is generated by U25 N-MOS from 3D3V_S5 when PM_SLP_S4# is hi .
Hi
Hi
Low
b. Circuit operation – 3D3V_S3 :

When 5V_S3 power was building, MAX1715 pin – 11 is pulled hi, and 2D5V_S3 will be turned on .
2D5D_S3_ON
c. Circuit operation – 2D5V_S3 :

Функция режима ожидания для экономии энергии, когда система не работает так же, как ниже настройки. Так, мощность S3 для такого использования.
• Система войдет в режим ожидания, если NB остается в бездействии в течение 30 минут.
• В режиме ожидания, если кнопка питания нажата, система вернется в предыдущее состояние в 5 сек.
• Из-за состояния возобновляется из памяти, мы должны S3 власть, чтобы North Bridge & DDR работает стоя на. В этом состоянии, ток утечки батареи при 30 мА.
Why Notebook needs S3 power – Stand-by mode function ?
d. S3 power Purpose :

After PM_SLP_S4# signal was generated for a few μ sec , the South Bridge will output PM_SLP_S3# on hi level, and 1D5V_S0 will be turned on .
a. Circuit operation – 1D5V_S0 :
1.2.3 S0_Power：

PM_SLP_S3# signal is also used to turn on 5V、3D3V、2D5V_S0.
b. Circuit operation – 5V,3D3V,&2D5V_S0 :

-- P4 CPU_ VCO power – architecture :
PWM
MAX1546
CPU
LDO
CM2843
Phase 1
Power module
Phase 2
Power module
Phase 3
Power module
3D3V_S0
1D2V_VID
H_VID0~5
DCBATOUT
DCBATOUT
DCBATOUT
VCC_CORE_S0
PWRGD_VID
1
5
4
3
2
1546
DHM & DLM
6
p.s. As one phase of power module can only supply 25A, and Yuhina CPU needs 66A, therefore 3 phrases are required.
1 of 4
c. Circuit operation – P4 CPU VCC_CORE_S0 :

3D3V_S0 power on .
CM2843 provides 1D2V_VID to CPU.
CPU provides VID code
PWRGD_VID, which is provided by CM2843, will delay 1ms
while 1D2V_VID is on. So it will be turned on after the CPU VID code.
1
1
2
4
2
4
3
3
CPU
H_VID0~6
2 of 4
c. Circuit operation – P4 CPU VCC_CORE_S0 :

4
5
3
5
1
1
2
1
MAX1546 Power is ready .
CM1843 generates 1D2V_VID to CPU.
CPU provides the VID0~5 to the MAX1546 ..
CM1843 will send PWRGD_VID as Hi after 1ms that 1D2V_VID was generated.
MAX1546 will output the switching signal .
4
5
CM1843
CPU
4
PWRGD_VID
2
1D2V_VID
3
3 of 4
c. Circuit operation – P4 CPU VCC_CORE_S0 :

The step-down circuit starts working as soon as the switch signal begins.
The VCC_CORE is produced and will provide the CPU’s working power .
PS. This is one of the three phases in VCC_CORE.
5
6
5
6
4 of 4
c. Circuit operation – P4 CPU VCC_CORE_S0 :

PWM
MAX1546
ISL6218
CPU
LDO
CM2843
Phase 1
Power module
Phase 2
Power module
Phase 3
Power module
3D3V_S0
1D2V_VID
H_VID0~5
DCBATOUT
DCBATOUT
DCBATOUT
VCC_CORE_S0
PWRGD_VID
1
5
4
3
2
1546
DHM & DLM
6
1D2V_S0
VCC_IO_S0(1.05V)
CPUCORE_ON
Banias CPU needs 21A, so only one phase is needed.
The power system can separate two kinds of architecture for CPU. But the only difference between P4 and Banias CPU power architecture is VCC_COER_S0. Such as below :
d. P4 & Banias CPU VCC_CORE_S0 difference :

By now we have learned how NB power is generated and why it must be done in a specific sequence. You might start to wonder, “What is other Power application?” In the following section, I will show you the power consumption of all devices in a NB. You will learn:
2.1 Power budget block diagram
2.2 NB power application
2.3 Multi–power device
2. Power plan introduction :

Create a NB power system with fixed procedure, so we can know the power budget of all devices from the power plan procedure .
Design procedure :
a. Power budget :
b. Power application :
We must first know the power category and consumption of all devices, and then we can start to define the SPEC of power.
After power SPEC was defined, we need to confirm the timing & sequence when power is turned on. And separate them with S5,S3,S0, etc. for the purpose
of power saving.
2. Power plan introduction :(cont’d)

1D25V_S0
VCC_CORE_S0(2.5mA )
1D5V_S0(599mA)
3D3V_S0(480mA )
1D5V_S5(90mA )
3D3V_S5( 166mA)
ICH4M
VCC_CORE
1D5V_S0(3140mA )
3D3V_S0(20mA )
2D5V_S3(2000mA )
2D5V_S0(50mA)
VCC_CORE(940mA )
Montara-GT
Mobile P4 CPU
3D3V_S3
VCC_CORE
(67.4A)-3.2G Hz
1D2V_VID(190mA)
CLK GEN
ICS950813
360mA
CARDBUS&
1394
3D3V_S0(60mA)
CODEC
40mA
LPC SIO
50mA
LPCROM
6mA
DDR
2D5V_S3 (2150mA)
1D25V_S0 (2150mA)
KBC
7mA
~150mA
~2150mA
~190mA
PCMCIA
CARD
1000mA
2D5V_S3
~4150mA
~65400mA
Mini PCI
802.11/BT
660mA
1D25V_S0
VCC_CORE
1D2V_VID
3D3V_S3
3D3V_S5
2D5V_S3
3D3V_S5
~50mA
~7650mA
~166mA
3D3V_S0
5V_S0
CRT
0.5A
HDD
900mA
CD ROM
700mA
OP AMP
1A
TOUCHPAD
25mA
PCMCIA
CARD
1A
1394-PHY
71mA
2D5V_S0
FIR
600mA
LCD
200mA
~2984mA
1D2V_VID
1D5V_S0
~3739mA
FAN
0.5A
MS Card
200 mA
SD Card
200 mA
USB*4
2000mA
1D5V_S0
2D5V_S0
KBC
3D3V_S3(150mA)
LAN
3D3V_LAN_S5(150mA)
1D5V_S5
1D5V_S5
~90mA
3D3V_LAN_S5
FDD
0.8A
2.1 NB (Yuhina) Power Budget Block Diagram

2.2.1 3D3V Device :
2.2 NB power application :

2.2.3 2D5V Device :
2.2.2 5V Device :

2.2.6 1D2V_VID Device :
2.2.5 1D25V Device :
2.2.7 VCC_CORE Device :
2.2.4 1D5V Device :

2.3 Multi-power device :

No power means when the power button is pressed, the power LED is not turned on, and the system is not booted. We can separate no power in four kinds of states :
3.1 No power debug notice & sequence
3.2 No DCBATOUT or short to GND
3.3 S5 Power No Good
3.4 Power on logic No Good
No power define :
If power system is good & power LED turned on, but the system still N.G., it means the system is “No work”.
You must follow the “No work debugging” process to troubleshoot the problems.
3. No power troubleshooting

3.1.1 debug Notice :
• For safety’s sake, please use adapter to supply the
Notebook power when you execute the debug process .
• This debug procedure can only cover about 90% no power
Problems.
3.1.2 debug Sequence :
Check
Dcbatout short to GND
Symptom?
Ref : 3.2.1
Check
S5 power N.G
Symptom?
Ref : 3.3.1
Check
Power logic N.G
Symptom?
Ref.:3.4.1
Execute
DCbatout short to GND
Debugging
Ref : 3.2.2
Execute
S5 power N.G
Debugging
Ref : 3.3.2
Execute
Power logic N.G
Debugging
Ref : 3.4.2
Other
condition
No No No
Yes Yes Yes
3.1 No power debug notice & sequence :

3.2.1 Symptoms:
• There is no any response when the power button was pressed and
adaptor was already inserted .
• Adaptor power LED flashes or shuts down .
Solution: Open the system case and use the multi-meter 200V scale to
check AD+ or DCBATOUT between GND as below . If the voltage is
less than 5V,we can make sure it is short to GND .
19V
3.2 DCBATOUT short to GND :

• There are 6 kinds of power sources in the Yuhina system, so we must check all
of the power output to see if there is any short to GND.
Solution: Check the 5V_S3,3D3V_S5,2D5V_S3,1D5V_S0,VCC_CORE and charger power one by one .
PWM
MAX1645
Charger
P-MOS
SI4425
P-MOS
SI4425
PWM
MAX1999
PWM
MAX1715
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
N-MOS
FD9412
3D3V_S5
N-MOS
FD9412
LDO
G913C
5V_S3
3D3V_S3
3D3V_S0
3D3V_LAN_S5
1D5V_S5
2D5V_S3
2D5V_S0
LDO
G913C
1D25V_S0
PWM
MAX1546
1D5V_S0
BT+
DCBATOUT
VCC_CORE_S0
5V_S0
1 of 2
3.2.2 Debugging :

Following is an example of the 2D5V power source.
Use multi-meter 200Ω scale to check TC32. The impedance must bigger
than 200Ω. If not, it means something short to GND, and we need to find out why.
Usually we would remove hi & low side MOS (U65 & U69) and MAX1715. If it’s still short to GND, it means some output devices are damaged, and we must try to remove them one by one .
DVM
1
2
2
1
2 of 2
3.2.2 Debugging : (cont’d)

3.3.1 Symptoms:
• There is no any response when the power button was pressed and adaptor has already plugged-in.
Adaptor power LED is normal .
3.3.2 Debugging :
• Open the case, use multi-meter to check if MAX1999 pin18 5V_S5 power is good.
• If not, it means MAX1999 or some 5V_S5 devices are damaged. Remove all powers, use multi-meter to check MAX1999 pin18 Impedance .
• If the impedance is smaller than 200Ω, it means some 5V_S5 devices are damaged, and we must try to remove the component one by one.
• If the impedance is more than 200Ω, it means the MAX1999 have some problem, and it must be changed.
3.3 S5 Power No Good :

• Next we must check 3D3V_S5. If 3D3V_DC_S5 is N.G, we could use multi-meter to check MAX1999 pin20 (19V), pin17, 28, 3 (5V) if powers are all good. If N.G, please check the source component.
3.3.2 Debugging : (cont’d)

3.4.1 Symptom :
• If the previous two symptoms are checked ok, but the system still has no power on, then we should check the power on logic circuit as below .
When power button was pressed, PWRBTN# will be pulled low.
After a series of logic actions, the SHUTDOWN_S5 will also be
pulled low.
Lo
Hi
Hi
Hi
Hi
Hi
Lo
To MAX1999
ON3 3D3V
Power Button
1
1
2
2
1 of 2
3.4 Power on logic N.G :

• If the power on logic circuit is correct, we can track the south bridge trigger logic .
When the power button is pressed, PWRBTN# will be pulled low ,
After the logic action, the PWRBTN#_ICH will also be pulled low.
It will trigger south bridge to send PM_SLP_S4 & S3 signal to turn
on S3 & S0 power .
Lo
Lo
Lo
Hi
ICH4M
(South bridge )
PM_SLP_S4 & S3
1
1
2
2
3
3
2 of 2
3.4.1 Symptom :