graph LR
subgraph "A相桥臂详细拓扑"
A[540VDC母线] --> B["VBP17R20SE \n 上管Q1"]
B --> C[输出节点A]
D["VBP17R20SE \n 下管Q4"] --> E[逆变器地]
C --> D
F[隔离驱动器] --> G["上管驱动"]
F --> H["下管驱动"]
G --> B
H --> D
end
subgraph "B相桥臂详细拓扑"
I[540VDC母线] --> J["VBP17R20SE \n 上管Q2"]
J --> K[输出节点B]
L["VBP17R20SE \n 下管Q5"] --> M[逆变器地]
K --> L
end
subgraph "C相桥臂详细拓扑"
N[540VDC母线] --> O["VBP17R20SE \n 上管Q3"]
O --> P[输出节点C]
Q["VBP17R20SE \n 下管Q6"] --> R[逆变器地]
P --> Q
end
subgraph "保护电路"
S[RC吸收网络] --> B
S --> D
T[电流检测] --> C
T --> K
T --> P
U[过流保护] --> V[故障锁存]
V --> W[驱动关断]
W --> F
end
C --> X[电机A相]
K --> Y[电机B相]
P --> Z[电机C相]
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
辅助电源转换拓扑详图
graph TB
subgraph "隔离型DC-DC电源拓扑"
A[540V DC输入] --> B[输入滤波]
B --> C["VBM1154N \n 主开关管"]
C --> D[变压器初级]
D --> E[初级地]
F[PWM控制器] --> G[栅极驱动器]
G --> C
subgraph "高频变压器"
H[初级绕组]
I[次级绕组1]
J[次级绕组2]
end
D --> H
I --> K[同步整流]
K --> L[12V输出滤波]
L --> M[+12V辅助电源]
J --> N[整流滤波]
N --> O[+5V控制电源]
end
subgraph "负载分配网络"
M --> P[栅极驱动电源]
M --> Q[风扇电源]
M --> R[通信模块]
O --> S[MCU控制器]
O --> T[传感器]
O --> U[保护电路]
end
subgraph "保护与监控"
V[输出过压保护] --> F
W[输出过流保护] --> F
X[温度检测] --> Y[过温保护]
Y --> F
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
安全控制与保护开关拓扑详图
graph LR
subgraph "预充电控制回路"
A[540VDC输入] --> B[限流电阻]
B --> C["VBQF2216 \n 预充电开关"]
C --> D[逆变器母线]
E[MCU控制] --> F[电平转换]
F --> G[栅极驱动]
G --> C
H[电压检测] --> D
H --> E
end
subgraph "安全使能控制"
I[MCU使能信号] --> J[隔离电路]
J --> K["VBQF2216 \n 使能开关"]
K --> L[栅极驱动使能]
L --> M[逆变器驱动]
end
subgraph "通信隔离开关"
N[+12V辅助电源] --> O["VBQF2216 \n 隔离开关"]
O --> P[通信模块电源]
Q[MCU控制] --> R[驱动电路]
R --> O
end
subgraph "紧急关断回路"
S[安全传感器] --> T[故障检测]
U[急停按钮] --> T
V[过流信号] --> T
T --> W["VBQF2216 \n 紧急开关"]
W --> X[系统关断信号]
X --> M
X --> G
end
style C 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 W fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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