graph LR
subgraph "DC/DC升压变换器"
A["燃料电池输入 \n 200-400VDC"] --> B["输入滤波器"]
B --> C["升压电感L"]
C --> D["开关节点"]
D --> E["VBP165R20SE \n 升压MOSFET"]
E --> F["地"]
D --> G["升压二极管"]
G --> H["高压直流母线 \n 400VDC"]
C --> G
I["DC/DC控制器"] --> J["栅极驱动器"]
J --> E
H -->|电压反馈| I
K["电流传感器"] -->|电流反馈| I
end
subgraph "交错并联扩展"
L["第二路升压电感"] --> M["开关节点2"]
M --> N["VBP165R20SE \n MOSFET 2"]
N --> F
M --> G
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
三相逆变输出级拓扑详图
graph TB
subgraph "U相桥臂"
A["高压直流母线+"] --> B["VBMB165R34SFD \n 上管Q1"]
B --> C["输出节点U"]
C --> D["VBMB165R34SFD \n 下管Q2"]
D --> E["地"]
end
subgraph "V相桥臂"
A --> F["VBMB165R34SFD \n 上管Q3"]
F --> G["输出节点V"]
G --> H["VBMB165R34SFD \n 下管Q4"]
H --> E
end
subgraph "W相桥臂"
A --> I["VBMB165R34SFD \n 上管Q5"]
I --> J["输出节点W"]
J --> K["VBMB165R34SFD \n 下管Q6"]
K --> E
end
subgraph "输出滤波与保护"
C --> L["LC滤波器U相"]
G --> M["LC滤波器V相"]
J --> N["LC滤波器W相"]
L --> O["交流输出U相"]
M --> P["交流输出V相"]
N --> Q["交流输出W相"]
R["RC吸收电路"] --> B
S["RC吸收电路"] --> F
T["RC吸收电路"] --> I
end
subgraph "驱动与控制"
U["逆变控制器"] --> V["三相驱动器"]
V --> B
V --> D
V --> F
V --> H
V --> I
V --> K
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与负载管理拓扑详图
graph LR
subgraph "智能负载开关通道"
A["MCU GPIO"] --> B["电平转换电路"]
B --> C["VBFB2625 栅极"]
subgraph C ["VBFB2625 P-MOSFET"]
direction LR
GATE[栅极]
SOURCE[源极]
DRAIN[漏极]
end
D["12V辅助电源"] --> SOURCE
DRAIN --> E["负载(风机/泵/通信)"]
E --> F["地"]
end
subgraph "多路负载管理示例"
G["MCU控制逻辑"] --> H["风机开关 \n VBFB2625"]
G --> I["循环泵开关 \n VBFB2625"]
G --> J["通信模块开关 \n VBFB2625"]
G --> K["控制电路开关 \n VBFB2625"]
G --> L["紧急关断开关 \n VBFB2625"]
H --> M["散热风机"]
I --> N["氢循环泵"]
J --> O["CAN/RS485模块"]
K --> P["控制电路"]
L --> Q["安全互锁"]
M --> R["地"]
N --> R
O --> R
P --> R
Q --> R
end
subgraph "辅助电源生成"
S["燃料电池低压输出"] --> T["辅助DC/DC"]
T --> D
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style H fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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