graph TB
subgraph "三相逆變橋臂(U相)"
A[高壓直流正極] --> B["VBP165C40 \n 上橋臂"]
B --> C[輸出節點U]
C --> D["VBP165C40 \n 下橋臂"]
D --> E[高壓直流負極]
end
subgraph "SiC柵極驅動電路"
F[逆變器控制器] --> G["專用SiC驅動器"]
subgraph G [驅動器功能]
direction LR
POS_SUP["+18V電源"]
NEG_SUP["-5V電源"]
DESAT_PROT["退飽和保護"]
ISO_GATE["隔離驅動"]
end
G --> B_GATE["上橋柵極"]
G --> D_GATE["下橋柵極"]
end
subgraph "保護與熱管理"
H[直流母線電容] --> A
H --> E
I[電流感測器] --> F
J[溫度感測器] --> F
K[液冷散熱板] --> B
K --> D
end
C --> L[電機U相繞組]
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
低壓大電流負載驅動拓撲詳圖
graph LR
subgraph "散熱風扇驅動通道"
A[12V電源] --> B["VBM1615 \n 低側開關"]
B --> C[散熱風扇]
C --> D[地]
E[負載控制器] --> F[電平增強]
F --> G[柵極驅動]
G --> B
end
subgraph "水泵驅動通道"
H[12V電源] --> I["VBM1615 \n 低側開關"]
I --> J[冷卻水泵]
J --> K[地]
E --> L[電平增強]
L --> M[柵極驅動]
M --> I
end
subgraph "續流與保護"
N[續流二極體] --> C
O[續流二極體] --> J
P[電流檢測] --> B
Q[電流檢測] --> I
R[過流比較器] --> S[故障鎖存]
S --> E
end
subgraph "散熱設計"
T[獨立散熱片] --> B
U[獨立散熱片] --> I
V[PCB大面積敷銅] --> B
V --> I
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能配電與安全隔離拓撲詳圖
graph TB
subgraph "預充電控制回路"
A[高壓電池正極] --> B["VBQF2305 \n 預充開關"]
B --> C[預充電電阻]
C --> D[直流母線電容]
D --> E[高壓負載]
end
subgraph "高壓附件隔離"
F[高壓電池正極] --> G["VBQF2305 \n 附件開關"]
G --> H[空調壓縮機]
H --> I[高壓地]
end
subgraph "P-MOS驅動電路"
J[BMS控制信號] --> K[隔離驅動器]
subgraph K [隔離驅動方案]
direction LR
CHARGE_PUMP["電荷泵電路"]
ISO_POWER["隔離電源"]
LEVEL_SHIFT["電平移位"]
end
K --> B_GATE["預充開關柵極"]
K --> G_GATE["附件開關柵極"]
end
subgraph "保護與監控"
L[高精度電流採樣] --> M[ADC轉換]
M --> N[BMS控制器]
O[電壓檢測] --> N
P[溫度監控] --> N
Q[可恢復過流保護] --> R[快速關斷]
R --> B
R --> G
end
subgraph "PCB佈局優化"
S[緊湊佈局] --> B
S --> G
T[防塵塗層] --> B
T --> G
U[增強焊接] --> B
U --> G
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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