graph LR
subgraph "三相PFC升壓電路"
A["三相交流輸入 \n 220V/380VAC"] --> B["EMI濾波器 \n 共模電感+X電容"]
B --> C["三相整流橋"]
C --> D["PFC升壓電感"]
D --> E["PFC開關節點"]
E --> F["VBP19R47S \n 900V/47A"]
F --> G["高壓直流母線 \n 400-800VDC"]
end
subgraph "驅動與保護"
H["PFC控制器"] --> I["高壓驅動IC \n IRS21814"]
I --> F
G -->|電壓回饋| H
subgraph "EMC抑制電路"
J["RC吸收網路"]
K["磁珠濾波"]
end
E --> J
F --> K
end
subgraph "散熱設計"
L["風冷散熱器"] --> F
M["溫度感測器"] --> N["MCU"]
N --> O["風扇PWM控制"]
O --> P["冷卻風扇"]
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
場景2: 高壓電池組DC-DC隔離變換器詳圖
graph TB
subgraph "LLC諧振隔離變換器"
A["高壓直流母線"] --> B["LLC諧振腔 \n Lr,Cr"]
B --> C["高頻變壓器 \n 初級"]
C --> D["LLC開關節點"]
D --> E["VBP117MC06 \n 1700V/6A"]
E --> F["初級地"]
G["變壓器次級"] --> H["同步整流"]
H --> I["輸出濾波"]
I --> J["儲能電池組 \n 400-800VDC"]
end
subgraph "SiC驅動電路"
K["LLC控制器"] --> L["SiC專用驅動IC \n UCC21710"]
L --> M["負壓關斷電路 \n -3V~-5V"]
M --> E
subgraph "保護措施"
N["開爾文源極連接"]
O["RC吸收網路"]
P["電壓尖峰抑制"]
end
N --> E
D --> O
C --> P
end
subgraph "熱管理"
Q["大型散熱器"] --> E
R["殼溫監測"] --> S["過溫保護 \n <110℃"]
S --> T["降頻/關斷"]
end
style E fill:#e1f5fe,stroke:#0288d1,stroke-width:2px
場景3: 大電流直流輸出端口控制詳圖
graph LR
subgraph "大電流輸出開關通道"
A["電池組電壓"] --> B["預充電路"]
B --> C["輸出開關節點"]
C --> D["VBGL1803 \n 80V/150A"]
D --> E["輸出端口 \n 12V/24V/48V"]
E --> F["房車負載 \n >100A"]
end
subgraph "驅動與保護"
G["MCU GPIO"] --> H["大電流驅動IC \n TC4427"]
H --> D
subgraph "快速保護"
I["精密採樣電阻"]
J["高速比較器"]
K["μs級關斷"]
end
D --> I
I --> J
J --> K
K --> H
end
subgraph "散熱設計"
L["PCB敷銅散熱 \n ≥500mm²"] --> D
M["2oz銅厚設計"] --> N["散熱過孔陣列"]
O["連接散熱風道"] --> D
end
subgraph "端口保護"
P["大功率TVS管"] --> E
Q["防反接電路"] --> E
R["靜電防護"] --> E
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
系統級保護與熱管理拓撲圖
graph TB
subgraph "電氣保護網路"
A["交流輸入端"] --> B["浪湧保護器 \n 壓敏電阻+氣體放電管"]
B --> C["過壓保護電路"]
C --> D["比較器+鎖存"]
D --> E["關斷信號"]
E --> F["所有功率器件"]
subgraph "柵極保護"
G["柵極串聯電阻"]
H["TVS保護陣列"]
I["負壓關斷"]
end
G --> F
H --> F
I --> F["SiC MOSFET"]
end
subgraph "熱管理系統"
subgraph "三級散熱"
J["一級: 強制風冷"]
K["二級: 散熱器"]
L["三級: PCB敷銅"]
end
J --> M["VBP19R47S/VBP117MC06"]
K --> M
L --> N["VBGL1803"]
subgraph "溫度監測"
O["NTC感測器"]
P["數字溫度IC"]
Q["紅外測溫"]
end
O --> R["MCU溫度管理"]
P --> R
Q --> R
R --> S["智能溫控策略"]
S --> T["風扇調速"]
S --> U["泵速控制"]
S --> V["功率降額"]
end
subgraph "EMC設計"
W["輸入濾波器"] --> X["共模電感"]
X --> Y["X/Y電容"]
Z["功率回路"] --> AA["磁珠濾波"]
AB["敏感信號"] --> AC["遮罩隔離"]
end
subgraph "可靠性設計"
AD["降額設計 \n 70%-80%額定值"] --> AE["電壓應力"]
AD --> AF["電流應力"]
AD --> AG["溫度應力"]
AH["環境適應"] --> AI["-40℃~85℃"]
AH --> AJ["防塵防濕"]
end
style M fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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