graph LR
subgraph "电源路径管理"
A["电池输入 \n 3-9VDC"] --> B["保护电路"]
B --> C["LDO稳压器 \n 3.3V/5V"]
C --> D["主电源总线"]
D --> E["VBTA1290 \n SC75-3封装"]
E --> F["主控MCU及外围 \n 微功耗系统"]
G["MCU GPIO \n 低电压驱动"] --> H["10Ω栅极电阻"]
H --> E
end
subgraph "传感器周期供电"
I["MCU GPIO控制"] --> J["VBTA1290 \n 传感器电源开关"]
J --> K["光电传感器腔体"]
K --> L["信号调理电路 \n 放大/滤波"]
L --> M["ADC输入"]
M --> N["MCU处理"]
end
subgraph "功耗管理"
O["分级供电策略"] --> P["传感器周期唤醒"]
O --> Q["主控低功耗模式"]
R["泄漏电流控制"] --> S["<1μA关态漏电"]
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style J fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
声光报警驱动拓扑详图（瞬时大电流）
graph TB
subgraph "蜂鸣器驱动电路"
A["MCU报警信号"] --> B["驱动电路"]
B --> C["VBC1307栅极 \n TSSOP8封装"]
D["升压电路 \n 9V/12V"] --> E["电源总线"]
E --> F["VBC1307漏极"]
C --> G["VBC1307源极"]
G --> H["压电蜂鸣器 \n 高响度"]
H --> I["地"]
end
subgraph "LED闪光驱动"
J["MCU闪光信号"] --> K["驱动电路"]
K --> L["VBC1307栅极"]
E --> M["VBC1307漏极"]
L --> N["VBC1307源极"]
N --> O["大功率LED阵列"]
O --> P["限流电阻"]
P --> I
end
subgraph "保护电路"
Q["TVS保护"] --> R["蜂鸣器接口"]
S["TVS保护"] --> T["LED接口"]
U["RC缓冲电路"] --> V["抑制电压尖峰"]
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style L fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
无线模块电源管理拓扑详图（智能互联）
graph LR
subgraph "双路P-MOS智能开关"
A["MCU控制信号"] --> B["电平转换电路"]
B --> C["VBQG4338 Ch1栅极 \n DFN6(2x2)-B"]
B --> D["VBQG4338 Ch2栅极"]
E["主电源总线"] --> F["VBQG4338 Ch1漏极"]
E --> G["VBQG4338 Ch2漏极"]
F --> H["VBQG4338 Ch1源极"]
G --> I["VBQG4338 Ch2源极"]
H --> J["无线模块主电源"]
I --> K["射频功放电源"]
end
subgraph "无线通信系统"
J --> L["Wi-Fi/蓝牙/NB-IoT \n 通信模块"]
K --> M["RF功率放大器"]
L --> N["SPI/UART接口"]
N --> O["主控MCU"]
L --> P["天线匹配电路"]
P --> Q["天线"]
end
subgraph "智能功耗管理"
R["间歇供电策略"] --> S["按需唤醒"]
R --> T["深度睡眠模式"]
U["故障隔离机制"] --> V["模块异常保护"]
end
subgraph "接口保护"
W["TVS阵列"] --> X["天线接口"]
W --> Y["通信接口"]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC1307规格书
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