graph LR
subgraph "低压电源分配系统"
A["12V机载总线"] --> B["输入滤波电路"]
B --> C["VBB1240 \n 主电源开关"]
C --> D["AI计算单元"]
C --> E["5V/3.3V稳压器"]
E --> F["VBB1240 \n 传感器开关1"]
E --> G["VBB1240 \n 传感器开关2"]
F --> H["视觉传感器阵列"]
G --> I["LiDAR传感器阵列"]
end
subgraph "MCU直接驱动设计"
J["MCU GPIO"] --> K["栅极电阻10Ω"]
K --> C
K --> F
K --> G
L["3.3V逻辑电源"] --> J
end
subgraph "保护与滤波网络"
M["TVS阵列"] --> C
N["去耦电容组"] --> D
O["LC滤波器"] --> H
P["RC吸收电路"] --> I
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
通信链路电源管理拓扑详图
graph TB
subgraph "双冗余通信电源切换"
A["12V辅助电源"] --> B["VBBD3222 \n 通道1"]
A --> C["VBBD3222 \n 通道2"]
B --> D["4G/5G通信模组"]
C --> E["卫星通信模组"]
D --> F["GND"]
E --> F
end
subgraph "独立栅极驱动控制"
G["MCU控制逻辑"] --> H["双路栅极驱动器"]
H --> B
H --> C
subgraph "热切换逻辑"
I["主链路正常"]
J["备用链路待机"]
K["故障检测电路"]
end
I --> G
J --> G
K --> G
end
subgraph "热管理设计"
L["功率铜皮"] --> B
L --> C
M["散热过孔"] --> L
N["空气对流"] --> B
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
安全隔离与应急控制拓扑详图
graph LR
subgraph "高压侧安全隔离系统"
A["无人机电池 \n 24-48VDC"] --> B["输入保护网络"]
B --> C["VB2658 P-MOSFET \n 高压侧开关"]
C --> D["安全关键负载"]
D --> E["GND"]
end
subgraph "应急控制驱动电路"
F["风险评估算法"] --> G["应急控制逻辑"]
G --> H["电平转换电路"]
subgraph "驱动级"
I["NPN三极管驱动"]
J["小信号N-MOS驱动"]
end
H --> I
H --> J
I --> C
J --> C
end
subgraph "保护与续流网络"
K["TVS瞬态抑制"] --> C
L["快恢复二极管"] --> D
M["RC缓冲电路"] --> C
N["电流检测电阻"] --> D
N --> O["过流保护电路"]
O --> G
end
subgraph "安全互锁机制"
P["故障信号输入"] --> G
Q["手动应急开关"] --> G
R["看门狗定时器"] --> G
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBB1240规格书
中文
English
