graph LR
subgraph "電控鎖驅動電路"
A["24V/48V直流輸入"] --> B["EMI濾波器"]
B --> C["過流保護"]
C --> D["VBM1105驅動節點"]
D --> E["VBM1105 \n 100V/120A TO220"]
E --> F["電控鎖線圈"]
F --> G["續流二極體"]
G --> H["地"]
I["專用驅動IC"] --> J["柵極驅動"]
J --> E
K["電流採樣"] --> L["比較器"]
L --> M["故障保護"]
M --> I
end
subgraph "雲臺電機驅動"
N["電機控制器"] --> O["H橋驅動信號"]
O --> P["VBM1105上橋"]
O --> Q["VBM1105下橋"]
P --> R["雲臺電機"]
Q --> R
S["編碼器回饋"] --> N
T["PWM速度控制"] --> N
end
subgraph "熱管理"
U["散熱器"] --> E
U --> P
V["溫度感測器"] --> W["MCU"]
W --> X["風扇控制"]
X --> Y["冷卻風扇"]
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style P fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
板載電源與補光控制拓撲詳圖
graph TB
subgraph "同步降壓轉換器"
A["12V/24V輸入"] --> B["輸入電容"]
B --> C["VBA1615上管"]
C --> D["開關節點"]
D --> E["VBA1615下管"]
E --> F["地"]
D --> G["功率電感"]
G --> H["輸出電容"]
H --> I["3.3V/5V輸出"]
J["PWM控制器"] --> K["上管驅動"]
J --> L["下管驅動"]
K --> C
L --> E
end
subgraph "補光燈PWM控制"
M["MCU GPIO"] --> N["電平轉換"]
N --> O["VBA1615柵極"]
O --> P["VBA1615 \n 60V/12A SOP8"]
P --> Q["LED補光燈陣列"]
Q --> R["電流檢測"]
R --> S["回饋控制"]
S --> M
T["PWM調光信號"] --> M
end
subgraph "PCB熱設計"
U["PCB敷銅區域"] --> P
U --> C
U --> E
V["散熱過孔陣列"] --> U
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style P fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
信號切換與電源冗餘拓撲詳圖
graph LR
subgraph "雙通道視頻信號切換"
A["視頻輸入1"] --> B["VBA5840 N-MOS"]
C["視頻輸入2"] --> D["VBA5840 N-MOS"]
B --> E["視頻輸出"]
D --> E
F["控制邏輯"] --> G["選擇信號"]
G --> B
G --> D
end
subgraph "冗餘電源切換電路"
H["主電源"] --> I["VBA5840 P-MOS"]
J["備份電源"] --> K["VBA5840 P-MOS"]
I --> L["負載供電"]
K --> L
M["電源監控"] --> N["切換控制"]
N --> I
N --> K
O["或邏輯二極體"] --> L
end
subgraph "集成保護"
P["ESD保護"] --> B
P --> D
Q["TVS陣列"] --> I
Q --> K
R["磁珠濾波"] --> E
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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