graph LR
subgraph "高压DC-DC前端预稳压"
A["中央直流母线 \n 540VDC"] --> B["输入滤波器 \n LC网络"]
B --> C["保护电路 \n 保险丝/TVS"]
C --> D["预稳压输入节点"]
D --> E["VBPB19R47S \n 900V/47A"]
E --> F["输出电感/变压器"]
F --> G["预稳压输出 \n 400VDC"]
H["前端控制器"] --> I["栅极驱动器"]
I --> E
G -->|电压反馈| H
subgraph "吸收保护电路"
J["RCD缓冲电路"] --> E
K["过压保护"] --> E
end
end
subgraph "隔离Buck/LLC变换级"
G --> L["隔离Buck/LLC \n 变换器"]
L --> M["高频变压器"]
M --> N["同步整流"]
N --> O["中间母线 \n 200-400VDC"]
P["PWM控制器"] --> Q["隔离驱动"]
Q --> L
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
伺服驱动系统拓扑详图
graph TB
subgraph "三相逆变桥拓扑"
A["中间母线 \n 200-400VDC"] --> B["三相逆变桥"]
B --> C["VBGMB1103 \n U相下管"]
B --> D["VBGMB1103 \n V相下管"]
B --> E["VBGMB1103 \n W相下管"]
C --> F["U相输出"]
D --> G["V相输出"]
E --> H["W相输出"]
F --> I["伺服电机"]
G --> I
H --> I
end
subgraph "FOC控制与驱动"
J["主控MCU"] --> K["FOC/SVPWM \n 算法"]
K --> L["三相PWM信号"]
L --> M["栅极驱动器"]
M --> C
M --> D
M --> E
subgraph "保护与检测"
N["电流检测"] --> J
O["过流保护"] --> M
P["温度监测"] --> J
end
end
subgraph "三级热管理"
Q["一级: 强制风冷"] --> C
Q --> D
Q --> E
R["散热器+导热界面"] --> C
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
低压电源与智能配电拓扑详图
graph LR
subgraph "同步Buck转换器"
A["低压母线 \n 12V/24V"] --> B["同步Buck控制器"]
B --> C["上管驱动"]
B --> D["下管驱动"]
C --> E["上管MOSFET"]
D --> F["VBFB1402 \n 下管同步整流"]
E --> G["输出电感"]
F --> G
G --> H["输出滤波电容"]
H --> I["控制器电源 \n 5V/3.3V"]
end
subgraph "智能负载开关管理"
A --> J["负载开关控制器"]
J --> K["VBFB1402 \n 负载开关1"]
J --> L["VBFB1402 \n 负载开关2"]
J --> M["VBFB1402 \n 负载开关3"]
K --> N["抱闸线圈"]
L --> O["传感器阵列"]
M --> P["通信模块"]
subgraph "保护电路"
Q["续流二极管"] --> N
R["TVS保护"] --> O
end
N --> S["地"]
O --> S
P --> S
end
subgraph "PCB散热设计"
T["大面积铺铜"] --> F
T --> K
U["过孔阵列散热"] --> F
end
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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