graph LR
subgraph "推进电机H桥驱动"
A["VBQF2625 \n 上桥臂1"] --> B["电机A相"]
C["VBQF2625 \n 下桥臂1"] --> B
D["VBQF2625 \n 上桥臂2"] --> E["电机B相"]
F["VBQF2625 \n 下桥臂2"] --> E
G["栅极驱动器"] --> A
G --> C
G --> D
G --> F
H["PWM控制器"] --> G
I["电流反馈"] --> H
end
subgraph "投饵电机驱动电路"
J["VBC7N3010 \n 驱动MOSFET"] --> K["电机驱动节点"]
K --> L["投饵电机"]
M["续流二极管"] --> J
N["RC缓冲网络"] --> J
O["驱动芯片"] --> J
P["MCU PWM"] --> O
end
subgraph "保护电路细节"
Q["RCD缓冲网络 \n (47Ω, 1nF)"] --> A
R["TVS阵列 \n 600W"] --> G
S["电流采样电阻 \n 1mΩ"] --> C
S --> T["差分运放"]
T --> U["过流比较器"]
U --> V["故障锁存"]
V --> W["紧急关断"]
W --> A
W --> C
end
style A fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
电源管理与传感器控制拓扑详图
graph LR
subgraph "主电源路径管理"
A["电池24V/48V"] --> B["π型滤波器"]
B --> C["VBQF1206 \n 主路径开关"]
C --> D["DC-DC降压器"]
D --> E["3.3V MCU供电"]
D --> F["5V 传感器供电"]
D --> G["12V 执行器供电"]
H["电流检测"] --> C
I["电压检测"] --> D
H --> J["MCU ADC"]
I --> J
end
subgraph "智能传感器电源管理"
F --> K["VBTA5220N \n 通道1"]
F --> L["VBTA5220N \n 通道2"]
subgraph K["VBTA5220N 内部结构"]
direction LR
K_N["N沟道MOS"]
K_P["P沟道MOS"]
end
subgraph L["VBTA5220N 内部结构"]
direction LR
L_N["N沟道MOS"]
L_P["P沟道MOS"]
end
M["MCU GPIO"] --> N["电平转换"]
N --> K_N
N --> L_N
K_P --> O["水质传感器"]
L_P --> P["避障声呐"]
O --> Q["电源地"]
P --> Q
end
subgraph "辅助执行机构控制"
G --> R["VBC7N3010 \n 水泵控制"]
G --> S["VBC7N3010 \n 电磁阀控制"]
T["MCU GPIO"] --> U["驱动电路"]
U --> R
U --> S
R --> V["舱内水泵"]
S --> W["电磁阀"]
X["续流二极管"] --> R
Y["续流二极管"] --> S
end
style C fill:#f3e5f5,stroke:#9c27b0,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style R fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
热管理与环境适应性拓扑详图
graph LR
subgraph "三级散热架构"
A["一级散热: 大功率MOSFET"] --> B["导热硅脂 \n +金属外壳"]
C["二级散热: 中功率MOSFET"] --> D["PCB内层敷铜 \n +散热过孔"]
E["三级散热: 小信号开关"] --> F["自然对流 \n +三防漆保护"]
G["VBQF2625阵列"] --> A
H["VBC7N3010"] --> C
I["VBTA5220N"] --> E
end
subgraph "温度监测网络"
J["NTC1: 功率器件温度"] --> K["ADC通道1"]
L["NTC2: 环境温度"] --> M["ADC通道2"]
N["NTC3: 密封舱温度"] --> O["ADC通道3"]
K --> P["MCU温度管理"]
M --> P
O --> P
P --> Q["温度预警算法"]
Q --> R["主动降额控制"]
Q --> S["紧急关机保护"]
end
subgraph "环境密封与防护"
T["PCB三防处理"] --> U["纳米级三防漆"]
V["连接器密封"] --> W["防水接头+密封圈"]
X["外壳防护"] --> Y["IP68防护等级"]
U --> Z["防潮防腐蚀"]
W --> Z
Y --> Z
end
subgraph "电磁兼容设计"
AA["功率环路优化"] --> AB["面积<1.5cm²"]
AC["信号线保护"] --> AD["接地保护环"]
AE["PWM滤波"] --> AF["RC滤波(100Ω+100pF)"]
AG["电缆屏蔽"] --> AH["屏蔽层单点接地"]
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC7N3010规格书
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