graph LR
subgraph "主电源路径管理"
A["电池输入 \n 3-6VDC"] --> B["VBQF2207 \n 主开关"]
B --> C["主电源总线VCC"]
D["MCU GPIO"] --> E["电平转换电路"]
E --> F["NPN三极管驱动"]
F --> B
C --> G["去耦电容阵列"]
end
subgraph "H桥电机驱动电路"
H["VCC"] --> I["H桥驱动电源"]
subgraph "H桥MOSFET阵列"
Q1["VBQF2207(Q1) \n 上桥臂"]
Q2["VBQF2207(Q2) \n 下桥臂"]
Q3["VBQF2207(Q3) \n 上桥臂"]
Q4["VBQF2207(Q4) \n 下桥臂"]
end
I --> Q1
I --> Q3
Q1 --> J["电机正端"]
Q2 --> J
Q3 --> K["电机负端"]
Q4 --> K
J --> L["微型直流电机"]
K --> L
M["PWM控制器"] --> N["半桥栅极驱动器"]
N --> O["高侧驱动"]
N --> P["低侧驱动"]
O --> Q1
O --> Q3
P --> Q2
P --> Q4
Q2 --> R[GND]
Q4 --> R
end
subgraph "保护电路"
S["过流检测"] --> T["比较器"]
T --> U["故障锁存"]
U --> V["关断信号"]
V --> B
V --> N
W["电池电压检测"] --> X["ADC输入"]
X --> MCU["MCU"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
传感器供电与精度保障拓扑详图
graph TB
subgraph "高精度传感器供电通道"
A["主电源VCC"] --> B["VBTA1220NS \n 电源开关"]
B --> C["LC滤波网络"]
C --> D["模拟前端(AFE)供电"]
D --> E["光电传感器"]
D --> F["基准电压源"]
G["MCU GPIO(1.8V/3.3V)"] --> H["10Ω栅极电阻"]
H --> B
I["精密去耦电容"] --> D
end
subgraph "信号链与测量电路"
J["光电传感器"] --> K["电流-电压转换"]
K --> L["可编程增益放大器(PGA)"]
L --> M["24位Σ-Δ ADC"]
M --> N["数字滤波器"]
N --> O["MCU数字接口"]
P["温度补偿电路"] --> Q["温度传感器"]
Q --> M
R["电压基准"] --> S["REF引脚"]
S --> M
end
subgraph "低电压保障电路"
T["电池电压监测"] --> U["低压检测电路"]
U --> V["比较器输出"]
V --> W["电源管理IC"]
W --> X["升压转换器(可选)"]
X --> A
Y["VBTA1220NS Vth检测"] --> Z["栅极电压监控"]
Z --> W
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
无线通信模块电源管理拓扑详图
graph LR
subgraph "VB5222双MOSFET控制电路"
A["主电源VCC"] --> B["VB5222(P沟道) \n 电源开关"]
B --> C["无线模块VDD"]
D["MCU使能信号"] --> E["电平转换器"]
E --> F["VB5222(N沟道) \n 使能控制"]
F --> G["模块使能引脚"]
subgraph "VB5222内部结构"
direction LR
IN_N["N-MOS栅极"]
IN_P["P-MOS栅极"]
SOURCE_N["N-MOS源极"]
SOURCE_P["P-MOS源极"]
DRAIN_N["N-MOS漏极"]
DRAIN_P["P-MOS漏极"]
end
E --> IN_P
D --> IN_N
A --> DRAIN_P
DRAIN_P --> SOURCE_P
SOURCE_P --> C
SOURCE_N --> G
DRAIN_N --> H["模块地"]
end
subgraph "低功耗管理电路"
I["模块状态监测"] --> J["电流检测电路"]
J --> K["功耗分析"]
K --> L["MCU电源管理"]
M["休眠控制逻辑"] --> N["快速唤醒电路"]
N --> O["时钟管理"]
O --> P["射频开关控制"]
L --> Q["动态频率调整"]
Q --> C
end
subgraph "浪涌抑制与保护"
R["软启动电路"] --> S["限流电阻"]
S --> T["缓启动电容"]
T --> B
U["TVS二极管阵列"] --> C
U --> V["天线端口"]
W["ESD保护器件"] --> G
W --> X["数据引脚"]
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBQF2207规格书
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