graph LR
subgraph "VBQF5325双路供电控制"
A["主电源 \n 3.3V/5V"] --> B["VBQF5325 \n N+P MOSFET"]
subgraph "N通道控制"
B --> C["栅极N"]
C --> D["漏极N"]
D --> E["传感器正电源 \n +5V/+12V"]
end
subgraph "P通道控制"
B --> F["栅极P"]
F --> G["漏极P"]
G --> H["传感器负电源 \n -5V/-12V"]
end
I["MCU控制信号"] --> J["电平转换"]
J --> C
J --> F
end
subgraph "电源滤波与AFE接口"
E --> K["LC滤波网络"]
H --> K
K --> L["模拟前端(AFE) \n 心电/血氧"]
subgraph "信号保护与隔离"
L --> M["信号调理"]
M --> N["电平转换"]
N --> O["MCU ADC"]
P["TVS保护"] --> M
Q["ESD保护"] --> INTERFACE["传感器接口"]
end
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style L fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
电机驱动与负载管理拓扑详图
graph TB
subgraph "VBC6N2022双路驱动"
A["主电源"] --> B["VBC6N2022 \n 双路共漏N-MOS"]
subgraph "通道1:电机驱动"
B --> C["栅极1"]
C --> D["漏极1"]
D --> E["源极1"]
E --> F["微型步进电机"]
F --> G["续流二极管"]
G --> H["电流检测电阻"]
H --> I["MCU ADC/比较器"]
end
subgraph "通道2:报警驱动"
B --> J["栅极2"]
J --> K["漏极2"]
K --> L["源极2"]
L --> M["蜂鸣器/震动马达"]
M --> N["RC缓冲电路"]
end
O["MCU PWM"] --> P["栅极驱动"]
P --> C
P --> J
end
subgraph "保护与诊断"
subgraph "过流保护"
I --> Q["过流检测"]
Q --> R["故障锁存"]
R --> S["关断信号"]
S --> C
S --> J
end
subgraph "堵转检测"
T["电机位置传感器"] --> U["堵转判断"]
U --> V["保护动作"]
V --> C
end
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电源管理与唤醒拓扑详图
graph LR
subgraph "VBHA161K主电源管理"
A["3.7V锂电池"] --> B["保护电路"]
B --> C["VBHA161K \n 主电源开关"]
C --> D["LDO/DC-DC"]
D --> E["系统主电源 \n 3.3V"]
subgraph "低功耗控制"
F["MCU GPIO"] --> G["直接驱动"]
G --> C
H["深度休眠模式"] --> I["系统关断"]
I --> C
end
end
subgraph "唤醒与备份系统"
subgraph "外部唤醒"
J["紧急按钮"] --> K["唤醒检测"]
K --> L["唤醒信号"]
L --> M["辅助电源"]
M --> N["预上电电路"]
N --> O["开启主电源"]
O --> C
end
subgraph "电池备份"
P["备用电池"] --> Q["VBHA161K"]
Q --> R["切换电路"]
R --> E
S["主电池检测"] --> T["电量判断"]
T --> U["切换控制"]
U --> Q
end
end
subgraph "能量采集(扩展)"
V["太阳能板"] --> W["能量管理"]
X["动能采集"] --> W
W --> Y["不稳压电源"]
Y --> Z["VBHA161K"]
Z --> AA["储能管理"]
AA --> E
end
style C fill:#e8f4ff,stroke:#1e88e5,stroke-width:2px
style Q fill:#e8f4ff,stroke:#1e88e5,stroke-width:2px
热管理与PCB散热拓扑详图
graph TB
subgraph "三级散热架构"
subgraph "一级:功率器件散热"
A["VBQF5325 \n DFN8封装"] --> B["散热焊盘"]
B --> C["PCB内层敷铜"]
D["VBC6N2022 \n TSSOP8"] --> E["引脚导热"]
E --> F["PCB表层敷铜"]
end
subgraph "二级:PCB整体散热"
C --> G["大面积接地层"]
F --> G
G --> H["散热过孔阵列"]
H --> I["底层敷铜"]
I --> J["自然对流"]
end
subgraph "三级:系统级散热"
K["热敏感器件"] --> L["隔离布局"]
M["射频模块"] --> N["距离保持"]
O["外壳设计"] --> P["通风结构"]
P --> Q["环境散热"]
end
end
subgraph "温度监控与调节"
subgraph "温度传感"
R["NTC传感器1"] --> S["VBQF5325附近"]
T["NTC传感器2"] --> U["VBC6N2022附近"]
V["NTC传感器3"] --> W["MCU附近"]
end
subgraph "热管理策略"
X["温度数据"] --> Y["MCU分析"]
Y --> Z["动态功耗调整"]
Y --> AA["报警阈值"]
AA --> BB["过热保护"]
BB --> CC["自动降频/关断"]
end
end
style A fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC6N2022规格书
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