graph LR
subgraph "三相两电平逆变桥"
A[高压直流母线] --> B_U["上桥臂U"]
A --> B_V["上桥臂V"]
A --> B_W["上桥臂W"]
B_U --> C_U["VBMB165R25SE"]
B_V --> C_V["VBMB165R25SE"]
B_W --> C_W["VBMB165R25SE"]
C_U --> D_U["U相输出"]
C_V --> D_V["V相输出"]
C_W --> D_W["W相输出"]
D_U --> E_U["下桥臂U"]
D_V --> E_V["下桥臂V"]
D_W --> E_W["下桥臂W"]
E_U --> F_U["VBMB165R25SE"]
E_V --> F_V["VBMB165R25SE"]
E_W --> F_W["VBMB165R25SE"]
F_U --> G[直流母线负]
F_V --> G
F_W --> G
end
subgraph "驱动与保护电路"
H[DSP PWM] --> I[隔离驱动器]
I --> J[电平转换]
J --> K[门极电阻网络]
K --> C_U
K --> C_V
K --> C_W
K --> F_U
K --> F_V
K --> F_W
subgraph "主动钳位保护"
L[RCD电路]
M[TVS阵列]
N[快速比较器]
end
D_U --> L
D_V --> L
D_W --> L
L --> A
M --> I
CURRENT_SENSE2["电流采样"] --> N
N --> O[故障锁存]
O --> P[关断信号]
P --> I
end
style C_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电池管理与智能开关拓扑详图
graph TB
subgraph "高压电池接入管理"
A[主电池正极] --> B[预充电接触器]
B --> C[预充电电阻]
C --> D[直流母线正]
A --> E[主接触器]
E --> D
subgraph "电池智能开关阵列"
F["VBQA4658 \n 通道1"]
G["VBQA4658 \n 通道2"]
end
D --> F
D --> G
F --> H[辅助电池系统]
G --> I[应急负载]
H --> J[充电管理IC]
I --> K[负载保护]
end
subgraph "电池状态监测"
L[电池组+] --> M[电压采样]
N[电池组-] --> O[电流采样]
P[电池中间点] --> Q[均衡电路]
M --> R[电池管理IC]
O --> R
Q --> R
R --> S[CAN通信]
S --> T[主控DSP]
subgraph "安全保护"
U[过压比较器]
V[欠压比较器]
W[过流保护]
end
M --> U
M --> V
O --> W
U --> X[保护动作]
V --> X
W --> X
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与热管理拓扑详图
graph LR
subgraph "高频辅助电源拓扑"
A[48V辅助电池] --> B["输入滤波器 \n EMI抑制"]
B --> C["半桥控制器 \n 300kHz"]
C --> D["VBQF3310G \n 半桥功率级"]
D --> E[高频变压器]
E --> F[同步整流器]
F --> G["输出整流滤波 \n 多路输出"]
G --> H["12V辅助电源"]
G --> I["5V数字电源"]
G --> J["±15V模拟电源"]
H --> K[栅极驱动器]
I --> L[MCU/DSP]
J --> M[传感器]
end
subgraph "三级热管理系统"
subgraph "一级:强制风冷"
N["大型铝散热器"]
O["轴流风扇组"]
P["风道设计"]
end
subgraph "二级:PCB散热"
Q["2oz厚铜PCB"]
R["散热过孔阵列"]
S["局部散热片"]
end
subgraph "三级:环境防护"
T["三防漆涂覆"]
U["选择性灌封"]
V["防腐处理"]
end
N --> W["主逆变MOSFET"]
O --> W
Q --> X["辅助电源IC"]
R --> X
S --> X
T --> Y["控制电路板"]
U --> Y
V --> Z["外露连接器"]
end
subgraph "船用级EMC设计"
EMC1["π型滤波器"] --> A
EMC2["输出LC滤波器"] --> AC_OUT["交流输出"]
EMC3["屏蔽铠装电缆"] --> SHIP_GRID["船舶电网"]
EMC4["法拉第笼机箱"] --> ALL["所有内部电路"]
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style W fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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