graph TB
subgraph "三相全橋功率拓撲"
A[三相380VAC輸入] --> B[LC濾波器]
B --> C[三相橋臂]
subgraph "上橋臂開關管"
Q_U1["VBP19R47S \n 900V/47A"]
Q_U2["VBP19R47S \n 900V/47A"]
Q_U3["VBP19R47S \n 900V/47A"]
end
subgraph "下橋臂開關管"
Q_L1["VBP19R47S \n 900V/47A"]
Q_L2["VBP19R47S \n 900V/47A"]
Q_L3["VBP19R47S \n 900V/47A"]
end
C --> Q_U1
C --> Q_U2
C --> Q_U3
Q_U1 --> D[高壓直流母線+]
Q_U2 --> D
Q_U3 --> D
Q_L1 --> E[功率地]
Q_L2 --> E
Q_L3 --> E
end
subgraph "隔離驅動與保護"
F[PWM控制器] --> G[隔離驅動晶片]
G --> H[米勒鉗位電路]
H --> Q_U1
H --> Q_L1
I[電流採樣] --> J[過流保護]
J --> K[故障鎖存]
K --> L[關斷信號]
L --> G
end
subgraph "熱管理與緩衝"
M[散熱器溫度] --> N[風扇PWM控制]
N --> O[冷卻風扇]
P[RC緩衝電路] --> Q_U1
P --> Q_L1
Q[電壓採樣] --> R[過壓保護]
R --> K
end
style Q_U1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_L1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
電池側雙向DC-DC變換拓撲詳圖
graph LR
subgraph "雙向Buck-Boost拓撲"
A[高壓直流輸入] --> B["VBL1303A \n 上管"]
B --> C[電感L]
C --> D["VBL1303A \n 下管"]
D --> E[功率地]
C --> F[輸出電容]
F --> G[電池母線]
subgraph "同步開關對"
H["VBL1303A \n 同步上管"]
I["VBL1303A \n 同步下管"]
end
G --> H
H --> C
I --> E
end
subgraph "大電流驅動與控制"
J[DC-DC控制器] --> K[大電流驅動器]
K --> B
K --> D
K --> H
K --> I
L[電流檢測] --> M[電流環控制]
M --> J
N[電壓檢測] --> O[電壓環控制]
O --> J
end
subgraph "保護與熱管理"
P[過流檢測] --> Q[快速關斷]
Q --> K
R[溫度感測器] --> S[過熱保護]
S --> J
T[PCB敷銅散熱] --> B
T --> D
U[均衡電路] --> G
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
輔助電源與信號管理拓撲詳圖
graph TB
subgraph "精密電源管理通道"
A[12V輔助電源] --> B["VBQF5325(N) \n 軟啟動控制"]
B --> C[負載電路]
D[24V感測器電源] --> E["VBQF5325(P) \n 電源切換"]
E --> F[感測器陣列]
subgraph "互補MOSFET對"
G["VBQF5325 \n N-MOS(13mΩ)"]
H["VBQF5325 \n P-MOS(40mΩ)"]
end
I[控制信號] --> G
I --> H
end
subgraph "信號採樣與切換"
J[電壓採樣點] --> K["VBQF5325 \n 採樣選通"]
K --> L[ADC輸入]
M[溫度感測器] --> N["VBQF5325 \n 通道選擇"]
N --> O[多路複用器]
P[電流信號] --> Q["VBQF5325 \n 隔離切換"]
Q --> R[隔離放大器]
end
subgraph "通信與保護介面"
S[MCU GPIO] --> T["VBQF5325 \n 電平轉換"]
T --> U[CAN收發器]
V[故障信號] --> W["VBQF5325 \n 保護鎖存"]
W --> X[保護繼電器]
Y[狀態指示] --> Z["VBQF5325 \n LED驅動"]
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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