graph LR
subgraph "同步降壓轉換器"
A["12V/24V輸入"] --> B["輸入濾波電容"]
B --> C["VBQF1307上管"]
C --> D["開關節點"]
D --> E["VBQF1307下管"]
E --> F["功率地"]
D --> G["功率電感"]
G --> H["輸出濾波電容"]
H --> I["核心電壓輸出"]
J["同步降壓控制器"] --> K["柵極驅動器"]
K --> C
K --> E
I -->|電壓回饋| J
L["電流檢測電阻"] --> M["電流檢測放大器"]
M --> J
end
subgraph "負載連接"
I --> N["主控SoC"]
I --> O["DDR記憶體"]
I --> P["AI加速模組"]
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
多路負載管理拓撲詳圖
graph TB
subgraph "雙N-MOS負載開關通道"
A["3.3V/5V輔助電源"] --> B["VBC6N2005漏極1"]
B --> C["VBC6N2005源極1"]
C --> D["負載1:圖像感測器"]
D --> E["負載地"]
F["VBC6N2005漏極2"] --> G["VBC6N2005源極2"]
G --> H["負載2:麥克風陣列"]
H --> E
I["MCU GPIO控制"] --> J["電平轉換"]
J --> K["VBC6N2005柵極1"]
J --> L["VBC6N2005柵極2"]
A --> F
end
subgraph "保護與監測電路"
M["電流檢測"] --> N["比較器"]
N --> O["過流保護"]
P["溫度感測器"] --> Q["熱關斷"]
R["TVS二極體"] --> B
R --> F
end
subgraph "應用負載"
D --> S["CMOS感測器"]
G --> T["MEMS麥克風"]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
微型負載開關拓撲詳圖
graph LR
subgraph "雙P-MOS開關通道"
A["MCU GPIO"] --> B["VBKB4265柵極A"]
A --> C["VBKB4265柵極B"]
D["電源匯流排"] --> E["VBKB4265漏極A"]
D --> F["VBKB4265漏極B"]
E --> G["VBKB4265源極A"]
F --> H["VBKB4265源極B"]
G --> I["負載A: IR-CUT電機"]
H --> J["負載B: 紅外LED"]
I --> K["公共地"]
J --> K
end
subgraph "驅動優化"
L["柵極電阻"] --> B
L --> C
M["對地電容"] --> B
M --> C
end
subgraph "負載保護"
N["續流二極體"] --> I
O["RC吸收電路"] --> I
P["保險絲"] --> G
end
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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