graph LR
subgraph "三相PFC功率级"
A["三相380VAC输入"] --> B["EMI滤波器"]
B --> C["MOV/TVS浪涌保护"]
C --> D["三相整流桥"]
D --> E["PFC升压电感"]
E --> F["PFC开关节点"]
F --> G["VBM17R08SE \n 700V/8A"]
G --> H["高压直流母线 \n 400VDC"]
I["PFC控制器"] --> J["栅极驱动器"]
J --> G
H -->|电压反馈| I
end
subgraph "高压DC-DC转换级"
H --> K["LLC谐振变换器"]
K --> L["高频变压器"]
L --> M["同步整流桥"]
M --> N["12V输出总线"]
O["DC-DC控制器"] --> P["同步整流驱动器"]
P --> M
L -->|电流反馈| O
end
subgraph "保护与缓冲电路"
Q["RCD缓冲网络"] --> G
R["RC吸收电路"] --> G
S["栅极TVS保护"] --> J
T["过流检测"] --> I
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
系统散热风扇驱动拓扑详图
graph TB
subgraph "冗余风扇驱动架构"
A["12V系统总线"] --> B["风扇电源分配"]
B --> C["风扇驱动节点1"]
B --> D["风扇驱动节点2"]
B --> E["风扇驱动节点3"]
C --> F["VBM155R13 \n 550V/13A"]
D --> G["VBM155R13 \n 550V/13A"]
E --> H["VBM155R13 \n 550V/13A"]
F --> I["系统风扇1 \n 12V/2A"]
G --> J["系统风扇2 \n 12V/2A"]
H --> K["系统风扇3 \n 12V/2A"]
end
subgraph "智能风扇控制"
L["主控MCU"] --> M["PWM生成器"]
M --> N["风扇驱动IC"]
N --> F
N --> G
N --> H
subgraph "状态监测"
O["转速反馈"]
P["电流检测"]
Q["温度传感器"]
end
I --> O
F --> P
R["散热器"] --> Q
O --> L
P --> L
Q --> L
end
subgraph "保护电路"
S["反电动势吸收"] --> I
T["过流保护"] --> F
U["堵转检测"] --> L
V["并联滤波电容"] --> C
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
安全隔离与备份电源拓扑详图
graph LR
subgraph "主备电源切换系统"
A["主电源12V"] --> B["电源切换节点"]
C["超级电容组"] --> B
subgraph "高侧隔离开关"
D["VBM2104N \n -100V/-50A"]
E["VBM2104N \n -100V/-50A"]
end
B --> D
B --> E
D --> F["合规审计模块"]
E --> G["关键数据存储"]
end
subgraph "隔离驱动电路"
H["主控MCU"] --> I["电平转换器"]
I --> J["电荷泵驱动"]
J --> D
J --> E
subgraph "故障保护"
K["过流检测"]
L["短路保护"]
M["欠压锁定"]
end
F --> K
G --> L
C --> M
K --> H
L --> H
M --> H
end
subgraph "电源监控与管理"
N["电压采样"] --> B
O["电流采样"] --> D
P["电容电压监测"] --> C
Q["温度监测"] --> D
N --> R["电源管理IC"]
O --> R
P --> R
Q --> R
R --> H
end
subgraph "ORing冗余供电"
S["主12V输入"] --> T["理想二极管控制器"]
U["备12V输入"] --> T
T --> V["关键负载总线"]
W["VBM2104N"] --> T
X["负载电流检测"] --> V
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style W fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBM17R08SE规格书
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