graph TB
subgraph "三相PFC升压级"
A["三相380VAC输入"] --> B["EMI滤波器"]
B --> C["三相整流桥"]
C --> D["PFC电感"]
D --> E["PFC开关节点"]
E --> F["VBM165R09S \n 650V/9A TO220"]
F --> G["高压直流母线 \n ~700VDC"]
H["PFC控制器"] --> I["高压栅极驱动器"]
I --> F
G -->|电压反馈| H
end
subgraph "LLC谐振变换级"
G --> J["LLC谐振腔 \n Lr, Cr"]
J --> K["高频变压器初级"]
K --> L["LLC开关节点"]
L --> M["VBM165R09S \n 650V/9A TO220"]
M --> N["初级地"]
O["LLC控制器"] --> P["高压栅极驱动器"]
P --> M
K -->|电流反馈| O
end
subgraph "热管理与保护"
Q["散热器+导热硅脂"] --> F
Q --> M
R["RC吸收电路"] --> F
R --> M
S["TVS保护阵列"] --> 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供电拓扑详图
graph LR
subgraph "多相Buck变换器架构"
A["12V/48V输入"] --> B["多相控制器"]
B --> C["相位1驱动"]
B --> D["相位2驱动"]
B --> E["相位3驱动"]
B --> F["相位4驱动"]
end
subgraph "相位1:同步整流"
C --> G["上管驱动"]
C --> H["下管驱动"]
subgraph "功率级"
I["上管MOSFET"]
J["VBQA1401 \n 下管同步整流"]
end
G --> I
H --> J
A --> I
I --> K["电感L1"]
K --> L["输出电容"]
J --> M["地"]
L --> N["CPU核心电压 \n 0.8-1.5V/100A"]
end
subgraph "相位2:同步整流"
D --> O["上管驱动"]
D --> P["下管驱动"]
subgraph "功率级"
Q["上管MOSFET"]
R["VBQA1401 \n 下管同步整流"]
end
O --> Q
P --> R
A --> Q
Q --> S["电感L2"]
S --> L
R --> M
end
subgraph "热管理"
T["PCB大面积功率敷铜"] --> J
T --> R
U["散热过孔阵列"] --> J
U --> R
end
subgraph "均流与保护"
V["电流检测"] --> B
W["温度检测"] --> B
X["过流保护"] --> B
Y["过温保护"] --> B
end
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style R fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能散热风扇驱动拓扑详图
graph TB
subgraph "MCU控制单元"
A["主控MCU"] --> B["PWM信号生成"]
B --> C["电平转换电路"]
C --> D["风扇驱动IC"]
end
subgraph "风扇1通道"
E["12V电源"] --> F["VBQF2314 \n P-MOSFET高侧开关"]
D --> F
F --> G["4线PWM风扇 \n 12V/3A"]
G --> H["地"]
I["风扇转速反馈"] --> A
end
subgraph "风扇2通道"
J["12V电源"] --> K["VBQF2314 \n P-MOSFET高侧开关"]
D --> K
K --> L["4线PWM风扇 \n 12V/3A"]
L --> H
M["风扇转速反馈"] --> A
end
subgraph "风扇3通道"
N["12V电源"] --> O["VBQF2314 \n P-MOSFET高侧开关"]
D --> O
O --> P["4线PWM风扇 \n 12V/3A"]
P --> H
Q["风扇转速反馈"] --> A
end
subgraph "风扇4通道"
R["12V电源"] --> S["VBQF2314 \n P-MOSFET高侧开关"]
D --> S
S --> T["4线PWM风扇 \n 12V/3A"]
T --> H
U["风扇转速反馈"] --> A
end
subgraph "保护电路"
V["ESD防护二极管"] --> F
V --> K
V --> O
V --> S
W["TVS保护"] --> D
X["过流检测"] --> A
end
subgraph "热管理"
Y["PCB局部敷铜"] --> F
Y --> K
Y --> O
Y --> S
Z["底部散热焊盘"] --> 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
点击下载：VBM165R09S规格书
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