graph TB
subgraph "多相同步降壓轉換器"
A[48V輸入] --> B[輸入電容陣列]
B --> C[高側開關節點]
C --> D["高側MOSFET \n VBQF2207"]
D --> E[電感節點]
E --> F[輸出電感]
F --> G[輸出電容陣列]
G --> H[CPU/GPU電源]
C --> I["低側MOSFET \n VBQF2207"]
I --> J[地]
K[多相控制器] --> L[柵極驅動器]
L --> D
L --> I
M[電流檢測] --> K
N[電壓回饋] --> K
end
subgraph "佈局與散熱設計"
O[PCB頂層銅箔] --> P[散熱過孔陣列]
P --> Q[PCB內層銅平面]
R[導熱墊] --> S[頂部散熱片]
T[溫度感測器] --> U[MCU]
U --> V[動態調頻調相]
end
subgraph "負載點轉換器"
W[12V輸入] --> X["POL轉換器 \n 同步降壓"]
X --> Y["VBQF2207 \n 同步整流"]
Y --> Z[DDR4記憶體電源]
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Y fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
散熱風機驅動拓撲詳圖
graph LR
subgraph "高壓風機驅動電路"
A[PWM控制信號] --> B[風機驅動IC]
B --> C[柵極驅動輸出]
C --> D["VBMB1607V3 \n 60V/120A"]
D --> E[風機正極]
F[48V電源] --> D
G[風機負極] --> H[電流檢測電阻]
H --> I[地]
J[續流二極體] --> K[電機反電動勢吸收]
end
subgraph "多風機並聯控制"
L[MCU] --> M[PWM發生器]
M --> N[驅動通道1]
M --> O[驅動通道2]
M --> P[驅動通道3]
N --> Q["VBMB1607V3"]
O --> R["VBMB1607V3"]
P --> S["VBMB1607V3"]
Q --> T[風機組1]
R --> U[風機組2]
S --> V[風機組3]
end
subgraph "熱管理控制策略"
W[溫度感測器1] --> X[MCU]
Y[溫度感測器2] --> X
Z[溫度感測器3] --> X
X --> AA[PID控制演算法]
AA --> AB[PWM占空比調整]
AB --> B
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style R fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style S fill:#fff3e0,stroke:#ff9800,stroke-width:2px
高壓PFC前端拓撲詳圖
graph TB
subgraph "功率因數校正(PFC)級"
A[AC輸入] --> B[EMI濾波器]
B --> C[整流橋]
C --> D[升壓電感]
D --> E[PFC開關節點]
E --> F["VBP15R33SFD \n 500V/33A"]
F --> G[輸出電容]
G --> H[380VDC輸出]
I[PFC控制器] --> J[柵極驅動器]
J --> F
K[電壓回饋] --> I
L[電流回饋] --> I
end
subgraph "保護與緩衝電路"
M["RCD緩衝網路"] --> F
N[RC吸收電路] --> F
O[TVS保護] --> J
P[浪湧防護電路] --> A
end
subgraph "熱設計與佈局"
Q[TO247封裝] --> R[絕緣散熱片]
R --> S[散熱器]
T[導熱矽脂] --> U[優化熱介面]
V[溫度監控點] --> W[過溫保護]
end
subgraph "冗餘電源設計"
X[AC輸入1] --> Y[PFC模組1]
Z[AC輸入2] --> AA[PFC模組2]
Y --> BB[ORing MOSFET]
AA --> BB
BB --> CC[公共直流母線]
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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