graph LR
subgraph "三相逆變橋臂設計"
A[主直流母線] --> B["VBM1401 \n 上橋臂U相"]
B --> C[U相輸出]
C --> D[主驅電機U相]
A --> E["VBM1401 \n 上橋臂V相"]
E --> F[V相輸出]
F --> G[主驅電機V相]
A --> H["VBM1401 \n 上橋臂W相"]
H --> I[W相輸出]
I --> J[主驅電機W相]
K[逆變器地] --> L["VBM1401 \n 下橋臂U相"]
L --> C
K --> M["VBM1401 \n 下橋臂V相"]
M --> F
K --> N["VBM1401 \n 下橋臂W相"]
N --> I
end
subgraph "驅動與保護電路"
O[主驅MCU] --> P[智能柵極驅動器]
P --> B
P --> L
subgraph "相保護電路"
Q[RC緩衝網路]
R[TVS瞬態抑制]
S[電流檢測電阻]
end
C --> Q
C --> R
C --> S
S --> T[過流比較器]
T --> U[故障鎖存]
U --> V[驅動關斷]
V --> P
end
subgraph "熱管理設計"
W[液冷板] --> B
W --> L
X[NTC溫度感測器] --> Y[溫度監測IC]
Y --> O
O --> Z[PWM調製]
Z --> AA[液冷泵控制]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style L fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
冗餘電源與負載管理拓撲詳圖
graph TB
subgraph "冗餘電源切換系統"
A[主電源24V] --> B["VBA2107 \n 主電源開關"]
C[備用電池24V] --> D["VBA2107 \n 備用電源開關"]
B --> E[域控制器電源匯流排]
D --> E
F[域控MCU] --> G[切換控制邏輯]
G --> H[主開關驅動]
G --> I[備用開關驅動]
H --> B
I --> D
subgraph "診斷回饋"
J[電流檢測]
K[電壓檢測]
L[溫度檢測]
end
B --> J
E --> K
D --> L
J --> F
K --> F
L --> F
end
subgraph "智能負載管理"
M[域控制器電源匯流排] --> N["VB5222 \n 鐳射雷達開關"]
M --> O["VB5222 \n 攝像頭開關"]
M --> P["VB5222 H橋 \n 車門鎖驅動"]
M --> Q["VB5222 H橋 \n 燈組驅動"]
subgraph "VB5222雙路結構"
direction LR
R["N+P溝道集成 \n ±20V能力"]
end
N --> S[鐳射雷達]
O --> T[攝像頭]
P --> U[車門鎖電機]
Q --> V[LED燈組]
F --> W[負載控制信號]
W --> N
W --> O
W --> P
W --> Q
subgraph "保護電路"
X[過流保護]
Y[短路保護]
Z[反向保護]
end
S --> X
T --> Y
U --> Z
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
熱管理與保護電路拓撲詳圖
graph LR
subgraph "三級散熱系統"
A["一級: 微通道液冷板"] --> B["主驅MOSFET \n VBM1401"]
C["二級: 針狀風冷散熱器"] --> D["電源開關 \n VBA2107"]
E["三級: 2oz厚銅箔PCB"] --> F["負載開關 \n VB5222"]
subgraph "溫度監測網絡"
G["MOSFET NTC"]
H["散熱器NTC"]
I["環境NTC"]
end
G --> J[溫度採集IC]
H --> J
I --> J
J --> K[熱管理MCU]
K --> L[風扇PWM]
K --> M[液冷泵控制]
K --> N[負載降額]
L --> O[強制風冷風扇]
M --> P[液冷迴圈泵]
end
subgraph "電氣保護網路"
Q["TVS陣列 \n ISO 7637-2"] --> R[主電源輸入]
S["RC緩衝電路"] --> T[逆變器開關節點]
U["肖特基二極體"] --> V[感性負載]
subgraph "故障檢測"
W[高精度電流檢測]
X[快速比較器]
Y[故障鎖存器]
end
W --> X
X --> Y
Y --> Z[系統關斷]
Z --> B
Z --> D
subgraph "功能安全"
AA[冗餘電源切換]
AB[故障注入測試]
AC[ASIL-D診斷]
end
AA --> AD[主備切換<2ms]
AB --> AE[安全機制驗證]
AC --> AF[健康狀態監測]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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