graph LR
subgraph "圖騰柱PFC拓撲"
A[三相380VAC輸入] --> B[EMI濾波器]
B --> C[無橋PFC電路]
subgraph "高壓MOSFET橋臂"
Q1["VBM16R32S \n 上管"]
Q2["VBM16R32S \n 下管"]
Q3["VBM16R32S \n 上管"]
Q4["VBM16R32S \n 下管"]
end
C --> Q1
C --> Q2
C --> Q3
C --> Q4
Q1 --> D[PFC電感]
Q2 --> E[PFC電感]
D --> F[高壓直流母線]
E --> F
G[PFC控制器] --> H[隔離驅動器]
H --> Q1
H --> Q2
H --> Q3
H --> Q4
F -->|電壓回饋| G
end
subgraph "保護電路"
I[去飽和檢測] --> J[比較器]
K[電流檢測] --> L[過流保護]
M[電壓檢測] --> N[過壓保護]
J --> O[故障鎖存]
L --> O
N --> O
O --> P[關斷信號]
P --> Q1
P --> Q2
end
subgraph "緩衝與吸收"
Q[RCD緩衝] --> Q1
R[RC吸收] --> Q2
S[TVS陣列] --> H
end
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q2 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
中壓多相DC/DC轉換拓撲
graph TB
subgraph "多相降壓轉換器"
A[48V輸入匯流排] --> B[輸入電容]
B --> C[相位1]
B --> D[相位2]
B --> E[相位3]
B --> F[相位4]
subgraph "相位1功率級"
G1["VBQA1102N \n 上管"]
H1["VBQA1102N \n 下管"]
C --> G1
C --> H1
G1 --> I1[功率電感]
H1 --> J1[地]
I1 --> K[輸出電容]
end
subgraph "相位2功率級"
G2["VBQA1102N \n 上管"]
H2["VBQA1102N \n 下管"]
D --> G2
D --> H2
G2 --> I2[功率電感]
H2 --> J2[地]
I2 --> K
end
K --> L[12V輸出匯流排]
subgraph "多相控制器"
M[PWM控制器] --> N[自適應死區控制]
N --> O[驅動器]
O --> G1
O --> H1
O --> G2
O --> H2
P[電流均衡] --> M
Q[溫度監控] --> M
end
end
subgraph "PCB散熱設計"
R[散熱過孔陣列] --> G1
R --> G2
S[內層銅箔] --> H1
S --> H2
T[散熱基板] --> R
T --> S
end
style G1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style H1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
低壓大電流負載點開關拓撲
graph LR
subgraph "智能負載開關通道"
A[12V輸入] --> B[輸入濾波]
B --> C[開關節點]
subgraph "大電流MOSFET"
D["VBFB1303 \n 主開關"]
end
C --> D
D --> E[輸出濾波]
E --> F[負載點輸出]
subgraph "驅動與保護"
G[MCU GPIO] --> H[電平轉換]
H --> I[驅動器]
I --> D
J[電流檢測] --> K[比較器]
K --> L[故障鎖存]
M[溫度檢測] --> N[過溫保護]
L --> O[快速關斷]
N --> O
O --> I
end
subgraph "熱插拔控制"
P[熱插拔檢測] --> Q[緩啟動]
Q --> I
R[電源序列] --> G
end
end
subgraph "散熱與佈局"
S[銅排連接] --> D
T[散熱片] --> D
U[厚銅PCB] --> D
V[對稱佈局] --> D
end
subgraph "負載類型"
F --> W[CPU核心供電]
F --> X[GPU卡供電]
F --> Y[存儲模組]
F --> Z[加速卡]
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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