graph TB
subgraph "同步降壓轉換器拓撲"
A["航空直流輸入 \n 48V/28V"] --> B["輸入濾波與保護"]
B --> C["VBGQF1201M \n 上管(Q1) \n 200V/10A"]
C --> D["開關節點"]
D --> E["VBGQF1201M \n 下管(Q2) \n 200V/10A"]
E --> F["功率地"]
D --> G["輸出電感"]
G --> H["輸出電容"]
H --> I["12V/5V輸出"]
subgraph "控制與驅動"
J["主控制器TPS54260"] --> K["自舉電路"]
K --> L["柵極驅動器LM5113"]
L --> C
L --> E
M["電壓回饋"] --> J
N["電流檢測"] --> J
end
end
subgraph "熱管理設計"
O["多層PCB內嵌銅箔"] --> C
O --> E
P["散熱過孔陣列"] --> O
Q["金屬殼體/散熱翅片"] --> P
R["導熱介面材料"] --> Q
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
射頻功放供電拓撲詳圖 (場景2)
graph LR
subgraph "射頻電源調節拓撲"
A["12V主電源輸入"] --> B["磁珠隔離"]
B --> C["高頻去耦電容組"]
C --> D["VBQG1410 \n 功率開關 \n 40V/12A"]
D --> E["低雜訊LDO \n (可選)"]
E --> F["多級LC濾波器"]
F --> G["射頻功放電源 \n 5V-12V"]
subgraph "驅動與佈局"
H["電源管理IC"] --> I["柵極串聯電阻"]
I --> D
J["PCB敷銅散熱≥30mm²"] --> D
K["靠近負載佈局"] --> F
end
end
subgraph "雜訊抑制設計"
L["數字地"] --> M["模擬地隔離"]
N["遮罩罩"] --> G
O["夾層走線"] --> D
P["源極串聯電阻"] --> D
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#fce4ec,stroke:#e91e63,stroke-width:2px
冗餘電源切換拓撲詳圖 (場景3)
graph TB
subgraph "雙路智能切換拓撲"
A["冗餘電源輸入12V"] --> B["VBK5213N \n 雙N+P MOSFET"]
subgraph B["VBK5213N內部結構"]
direction LR
N_CH["N溝道MOSFET \n 3.28A"]
P_CH["P溝道MOSFET \n -2.8A"]
end
B --> C["通道1輸出 \n 伺服舵機"]
B --> D["通道2輸出 \n 感測器陣列"]
subgraph "控制邏輯"
E["MCU GPIO 3.3V"] --> F["電平轉換器"]
F --> G["柵極驅動信號"]
G --> N_CH
G --> P_CH
H["柵極下拉電阻"] --> N_CH
H --> P_CH
end
end
subgraph "保護與可靠性設計"
I["續流二極體"] --> C
I --> D
J["TVS保護"] --> C
J --> D
K["過流檢測"] --> L["故障信號"]
L --> E
M["PCB整體散熱"] --> B
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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