graph LR
subgraph "48V/12V主電源轉換級"
A["48VDC輸入 \n 或AC-DC輸出"] --> B["輸入保護電路 \n TVS/保險絲"]
B --> C["輸入濾波 \n LC網路"]
C --> D["VBN165R13S \n 主開關MOSFET"]
D --> E["隔離DC-DC轉換器 \n 48V轉12V"]
E --> F["中間匯流排電容陣列"]
F --> G["12V中間匯流排"]
H["PWM控制器"] --> I["高壓側驅動器"]
I --> D
end
subgraph "中間匯流排分配網路"
G --> J["π型濾波器1"]
G --> K["π型濾波器2"]
G --> L["π型濾波器3"]
J --> M["負載點轉換器組1"]
K --> N["負載點轉換器組2"]
L --> O["感測器供電通道"]
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
負載點電源(POL)轉換拓撲詳圖 (場景二)
graph TB
subgraph "多相Buck轉換器 (為AI處理器供電)"
A["12V輸入"] --> B["輸入去耦電容"]
B --> C["VBGQF1402 \n 高邊MOSFET"]
C --> D["開關節點"]
D --> E["VBGQF1402 \n 低邊MOSFET"]
E --> F["功率地"]
D --> G["輸出電感"]
G --> H["輸出電容陣列"]
H --> I["1.2V核心電壓"]
I --> J["AI處理器/GPU"]
K["多相控制器"] --> L["驅動器"]
L --> C
L --> E
end
subgraph "單相Buck轉換器 (為存儲陣列供電)"
M["12V輸入"] --> N["輸入濾波器"]
N --> O["VBGQF1402 \n 高邊MOSFET"]
O --> P["開關節點"]
P --> Q["VBGQF1402 \n 低邊MOSFET"]
Q --> R["功率地"]
P --> S["輸出電感"]
S --> T["輸出電容"]
T --> U["3.3V/1.8V存儲電壓"]
U --> V["DDR4/DDR5存儲陣列"]
end
subgraph "電壓監控與調整"
W["電壓回饋網路"] --> X["誤差放大器"]
X --> K
Y["電流檢測電阻"] --> Z["電流檢測放大器"]
Z --> K
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style O fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
精密感測器供電拓撲詳圖 (場景三)
graph LR
subgraph "感測器電源路徑管理"
A["12V中間匯流排"] --> B["LDO預穩壓器 \n 12V轉5V"]
B --> C["π型濾波器"]
C --> D["VB2212N \n 通道開關"]
D --> E["二級LC濾波器"]
E --> F["精密LDO \n 5V轉3.3V"]
F --> G["感測器供電輸出"]
H["MCU GPIO"] --> I["電平轉換器"]
I --> J["柵極驅動"]
J --> D
end
subgraph "多通道獨立供電"
subgraph "數據採集通道"
K["VB2212N_Ch1"] --> L["溫度感測器"]
M["VB2212N_Ch2"] --> N["濕度感測器"]
O["VB2212N_Ch3"] --> P["振動感測器"]
end
subgraph "信號鏈通道"
Q["VB2212N_Ch4"] --> R["ADC基準源"]
S["VB2212N_Ch5"] --> T["時鐘發生器"]
U["VB2212N_Ch6"] --> V["通信PHY晶片"]
end
end
subgraph "雜訊抑制設計"
W["去耦電容陣列"] --> G
X["鐵氧體磁珠"] --> E
Y["ESD保護二極體"] --> D
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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