graph LR
subgraph "反激式辅助电源"
A["高压直流母线 \n 380VDC"] --> B["输入滤波电容"]
B --> C["反激变压器初级"]
C --> D["VBI165R04 \n 650V/4A"]
D --> E["初级地"]
F["反激控制器"] --> G["栅极驱动器"]
G --> D
subgraph "变压器次级侧"
H["反激变压器次级"] --> I["整流二极管"]
I --> J["输出滤波"]
J --> K["辅助电源输出 \n 12V/5V/3.3V"]
end
C -->|电压反馈| F
K -->|负载反馈| F
end
subgraph "保护电路"
L["RCD缓冲网络"] --> D
M["TVS保护"] --> G
N["过流检测"] --> F
O["过压保护"] --> F
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
PoL转换与负载管理拓扑详图
graph TB
subgraph "同步Buck转换器"
A["12V中间总线"] --> B["输入电容"]
B --> C["上管MOSFET"]
C --> D["开关节点"]
D --> E["VB7430 \n 40V/6A"]
E --> F["输出电感"]
F --> G["输出电容"]
G --> H["CPU核心供电 \n 0.8-1.2V"]
I["Buck控制器"] --> J["上管驱动器"]
I --> K["下管驱动器"]
J --> C
K --> E
H -->|电压反馈| I
end
subgraph "多路负载分配"
L["5V辅助电源"] --> M["VB7430负载开关"]
M --> N["外设供电"]
O["3.3V辅助电源"] --> P["VB7430负载开关"]
P --> Q["接口电路供电"]
end
subgraph "保护与滤波"
R["输入π型滤波"] --> B
S["输出LC滤波"] --> G
T["电流检测"] --> I
U["温度监控"] --> MCU[主控MCU]
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style M fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能散热与信号管理拓扑详图
graph LR
subgraph "双路风扇驱动通道"
A["MCU PWM输出1"] --> B["电平转换"]
B --> C["VBC9216 CH1 \n 栅极驱动"]
C --> D["风扇1电源控制"]
E["MCU PWM输出2"] --> F["电平转换"]
F --> G["VBC9216 CH2 \n 栅极驱动"]
G --> H["风扇2电源控制"]
I["12V风扇总线"] --> J["VBC9216漏极1"]
I --> K["VBC9216漏极2"]
J --> D
K --> H
D --> L["4线PWM风扇1"]
H --> M["4线PWM风扇2"]
L --> N["风扇转速反馈"]
M --> O["风扇转速反馈"]
N --> A
O --> E
end
subgraph "信号通路管理"
P["MCU GPIO"] --> Q["VBC9216信号开关"]
Q --> R["板间通信通路"]
S["FPGA输出"] --> T["VBC9216电平转换"]
T --> U["外部接口"]
end
subgraph "保护电路"
V["续流二极管"] --> L
W["RC吸收电路"] --> L
X["TVS保护"] --> I
Y["堵转检测"] --> MCU2[故障处理MCU]
Z["过流保护"] --> MCU2
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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