graph LR
subgraph "同步Buck轉換器"
A["電池輸入 \n 12-24VDC"] --> B["輸入電容"]
B --> C["VBGQF1302 \n 高側開關"]
C --> D["開關節點"]
D --> E["功率電感"]
E --> F["輸出電容"]
F --> G["核心電壓 \n 3.3V/5V"]
H["VBGQF1302 \n 低側開關"] --> I["功率地"]
D --> H
end
subgraph "控制與驅動"
J["Buck控制器"] --> K["柵極驅動器"]
K --> C
K --> H
L["電壓回饋"] --> J
M["電流檢測"] --> J
end
subgraph "熱管理設計"
N["PCB散熱焊盤"] --> C
N --> H
O["內層銅箔"] --> N
P["散熱過孔陣列"] --> O
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
智能負載管理拓撲詳圖
graph TB
subgraph "電池總開關通道"
A["電池正極"] --> B["VB2610N \n 源極(S)"]
C["MCU GPIO"] --> D["上拉電阻"]
D --> E["VB2610N \n 柵極(G)"]
B --> F["VB2610N \n 漏極(D)"]
F --> G["系統主電源"]
H["Rgs電阻"] --> E
I["軟啟動電容"] --> E
end
subgraph "模組化負載開關"
subgraph "感測器通道"
J["核心電壓"] --> K["VB2610N"]
K --> L["感測器陣列"]
end
subgraph "通信模組通道"
M["核心電壓"] --> N["VB2610N"]
N --> O["4G/NB-IoT模組"]
end
subgraph "執行機構通道"
P["核心電壓"] --> Q["VB2610N"]
Q --> R["繼電器/電機"]
end
S["MCU控制邏輯"] --> K
S --> N
S --> Q
end
subgraph "保護電路"
T["續流二極體"] --> R
U["TVS保護"] --> O
V["濾波電容"] --> L
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
介面保護拓撲詳圖
graph LR
subgraph "RS-485介面保護"
A["RS-485匯流排"] --> B["TVS陣列"]
B --> C["VB3658 \n 雙N-MOS保護"]
C --> D["隔離晶片"]
D --> E["MCU UART"]
subgraph C ["VB3658內部結構"]
direction LR
MOS1["MOSFET1"]
MOS2["MOSFET2"]
end
end
subgraph "電源輸入保護"
F["太陽能輸入"] --> G["TVS管"]
G --> H["VB3658防反接"]
H --> I["充電管理"]
subgraph H ["VB3658配置"]
direction TB
J["背對背連接"]
K["理想二極體模式"]
end
end
subgraph "調試介面保護"
L["調試介面"] --> M["ESD保護"]
M --> N["VB3658限流"]
N --> O["MCU調試口"]
end
subgraph "故障檢測與處理"
P["過流檢測"] --> Q["比較器"]
Q --> R["故障鎖存"]
R --> S["關斷信號"]
S --> C
S --> H
S --> N
T["狀態回饋"] --> U["MCU ADC"]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style H fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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