graph LR
subgraph "三相兩電平逆變橋"
A[高壓直流母線] --> B_U["上橋臂U"]
A --> B_V["上橋臂V"]
A --> B_W["上橋臂W"]
B_U --> C_U["VBMB165R25SE"]
B_V --> C_V["VBMB165R25SE"]
B_W --> C_W["VBMB165R25SE"]
C_U --> D_U["U相輸出"]
C_V --> D_V["V相輸出"]
C_W --> D_W["W相輸出"]
D_U --> E_U["下橋臂U"]
D_V --> E_V["下橋臂V"]
D_W --> E_W["下橋臂W"]
E_U --> F_U["VBMB165R25SE"]
E_V --> F_V["VBMB165R25SE"]
E_W --> F_W["VBMB165R25SE"]
F_U --> G[直流母線負]
F_V --> G
F_W --> G
end
subgraph "驅動與保護電路"
H[DSP PWM] --> I[隔離驅動器]
I --> J[電平轉換]
J --> K[門極電阻網路]
K --> C_U
K --> C_V
K --> C_W
K --> F_U
K --> F_V
K --> F_W
subgraph "主動鉗位保護"
L[RCD電路]
M[TVS陣列]
N[快速比較器]
end
D_U --> L
D_V --> L
D_W --> L
L --> A
M --> I
CURRENT_SENSE2["電流採樣"] --> N
N --> O[故障鎖存]
O --> P[關斷信號]
P --> I
end
style C_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
電池管理與智能開關拓撲詳圖
graph TB
subgraph "高壓電池接入管理"
A[主電池正極] --> B[預充電接觸器]
B --> C[預充電電阻]
C --> D[直流母線正]
A --> E[主接觸器]
E --> D
subgraph "電池智能開關陣列"
F["VBQA4658 \n 通道1"]
G["VBQA4658 \n 通道2"]
end
D --> F
D --> G
F --> H[輔助電池系統]
G --> I[應急負載]
H --> J[充電管理IC]
I --> K[負載保護]
end
subgraph "電池狀態監測"
L[電池組+] --> M[電壓採樣]
N[電池組-] --> O[電流採樣]
P[電池中間點] --> Q[均衡電路]
M --> R[電池管理IC]
O --> R
Q --> R
R --> S[CAN通信]
S --> T[主控DSP]
subgraph "安全保護"
U[過壓比較器]
V[欠壓比較器]
W[過流保護]
end
M --> U
M --> V
O --> W
U --> X[保護動作]
V --> X
W --> X
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
輔助電源與熱管理拓撲詳圖
graph LR
subgraph "高頻輔助電源拓撲"
A[48V輔助電池] --> B["輸入濾波器 \n EMI抑制"]
B --> C["半橋控制器 \n 300kHz"]
C --> D["VBQF3310G \n 半橋功率級"]
D --> E[高頻變壓器]
E --> F[同步整流器]
F --> G["輸出整流濾波 \n 多路輸出"]
G --> H["12V輔助電源"]
G --> I["5V數字電源"]
G --> J["±15V模擬電源"]
H --> K[柵極驅動器]
I --> L[MCU/DSP]
J --> M[感測器]
end
subgraph "三級熱管理系統"
subgraph "一級:強制風冷"
N["大型鋁散熱器"]
O["軸流風扇組"]
P["風道設計"]
end
subgraph "二級:PCB散熱"
Q["2oz厚銅PCB"]
R["散熱過孔陣列"]
S["局部散熱片"]
end
subgraph "三級:環境防護"
T["三防漆塗覆"]
U["選擇性灌封"]
V["防腐處理"]
end
N --> W["主逆變MOSFET"]
O --> W
Q --> X["輔助電源IC"]
R --> X
S --> X
T --> Y["控制電路板"]
U --> Y
V --> Z["外露連接器"]
end
subgraph "船用級EMC設計"
EMC1["π型濾波器"] --> A
EMC2["輸出LC濾波器"] --> AC_OUT["交流輸出"]
EMC3["遮罩鎧裝電纜"] --> SHIP_GRID["船舶電網"]
EMC4["法拉第籠機箱"] --> ALL["所有內部電路"]
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style W fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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