graph TB
subgraph "三相PFC升壓級"
A["三相380VAC輸入"] --> B["EMI濾波器"]
B --> C["三相整流橋"]
C --> D["PFC電感"]
D --> E["PFC開關節點"]
E --> F["VBM165R09S \n 650V/9A TO220"]
F --> G["高壓直流母線 \n ~700VDC"]
H["PFC控制器"] --> I["高壓柵極驅動器"]
I --> F
G -->|電壓回饋| H
end
subgraph "LLC諧振變換級"
G --> J["LLC諧振腔 \n Lr, Cr"]
J --> K["高頻變壓器初級"]
K --> L["LLC開關節點"]
L --> M["VBM165R09S \n 650V/9A TO220"]
M --> N["初級地"]
O["LLC控制器"] --> P["高壓柵極驅動器"]
P --> M
K -->|電流回饋| O
end
subgraph "熱管理與保護"
Q["散熱器+導熱矽脂"] --> F
Q --> M
R["RC吸收電路"] --> F
R --> M
S["TVS保護陣列"] --> I
S --> P
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style M fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
CPU/GPU VRM供電拓撲詳圖
graph LR
subgraph "多相Buck變換器架構"
A["12V/48V輸入"] --> B["多相控制器"]
B --> C["相位1驅動"]
B --> D["相位2驅動"]
B --> E["相位3驅動"]
B --> F["相位4驅動"]
end
subgraph "相位1:同步整流"
C --> G["上管驅動"]
C --> H["下管驅動"]
subgraph "功率級"
I["上管MOSFET"]
J["VBQA1401 \n 下管同步整流"]
end
G --> I
H --> J
A --> I
I --> K["電感L1"]
K --> L["輸出電容"]
J --> M["地"]
L --> N["CPU核心電壓 \n 0.8-1.5V/100A"]
end
subgraph "相位2:同步整流"
D --> O["上管驅動"]
D --> P["下管驅動"]
subgraph "功率級"
Q["上管MOSFET"]
R["VBQA1401 \n 下管同步整流"]
end
O --> Q
P --> R
A --> Q
Q --> S["電感L2"]
S --> L
R --> M
end
subgraph "熱管理"
T["PCB大面積功率敷銅"] --> J
T --> R
U["散熱過孔陣列"] --> J
U --> R
end
subgraph "均流與保護"
V["電流檢測"] --> B
W["溫度檢測"] --> B
X["過流保護"] --> B
Y["過溫保護"] --> B
end
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style R fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能散熱風扇驅動拓撲詳圖
graph TB
subgraph "MCU控制單元"
A["主控MCU"] --> B["PWM信號生成"]
B --> C["電平轉換電路"]
C --> D["風扇驅動IC"]
end
subgraph "風扇1通道"
E["12V電源"] --> F["VBQF2314 \n P-MOSFET高側開關"]
D --> F
F --> G["4線PWM風扇 \n 12V/3A"]
G --> H["地"]
I["風扇轉速回饋"] --> A
end
subgraph "風扇2通道"
J["12V電源"] --> K["VBQF2314 \n P-MOSFET高側開關"]
D --> K
K --> L["4線PWM風扇 \n 12V/3A"]
L --> H
M["風扇轉速回饋"] --> A
end
subgraph "風扇3通道"
N["12V電源"] --> O["VBQF2314 \n P-MOSFET高側開關"]
D --> O
O --> P["4線PWM風扇 \n 12V/3A"]
P --> H
Q["風扇轉速回饋"] --> A
end
subgraph "風扇4通道"
R["12V電源"] --> S["VBQF2314 \n P-MOSFET高側開關"]
D --> S
S --> T["4線PWM風扇 \n 12V/3A"]
T --> H
U["風扇轉速回饋"] --> A
end
subgraph "保護電路"
V["ESD防護二極體"] --> F
V --> K
V --> O
V --> S
W["TVS保護"] --> D
X["過流檢測"] --> A
end
subgraph "熱管理"
Y["PCB局部敷銅"] --> F
Y --> K
Y --> O
Y --> S
Z["底部散熱焊盤"] --> F
Z --> K
Z --> O
Z --> S
end
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style O fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style S fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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