graph LR
subgraph "集成半桥驱动电路"
A["VBQF3310G \n 高边N-MOS"] --> B["电机正极端"]
C["VBQF3310G \n 低边N-MOS"] --> D["电机负极端"]
E["电源输入 \n 3.7-14.8V"] --> A
C --> F["电源地"]
B --> G[直流电机]
D --> G
end
subgraph "驱动与控制电路"
H["半桥驱动IC"] --> I["高边驱动"]
H --> J["低边驱动"]
I --> A
J --> C
K["MCU PWM"] --> H
L["自举二极管"] --> M["自举电容"]
M --> I
N["栅极电阻"] --> A
N --> C
end
subgraph "保护电路"
O["电流检测电阻"] --> P["比较器"]
P --> Q["过流保护"]
Q --> H
R["RC吸收网络"] --> G
S["TVS管"] --> A
S --> C
end
style A fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
加热控制与电源管理拓扑详图
graph TB
subgraph "加热模块PWM控制"
A["电源输入"] --> B["VBA7216 \n 20V/7A"]
B --> C["PTC加热片"]
D["MCU PWM"] --> E["栅极驱动"]
E --> B
F["温度传感器"] --> G["PID控制器"]
G --> D
end
subgraph "主电源开关管理"
H["锂电池"] --> I["VBA7216 \n 主开关"]
I --> J["系统电源总线"]
K["MCU GPIO"] --> L["直接驱动"]
L --> I
end
subgraph "辅助负载开关"
M["系统电源"] --> N["VBTA2245N \n -20V/-0.55A"]
N --> O["LED负载"]
P["MCU GPIO"] --> Q["低电平驱动"]
Q --> N
R["上拉电阻"] --> N
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保护与热管理拓扑详图
graph LR
subgraph "三级热管理系统"
A["一级散热"] --> B["H桥MOSFET"]
C["二级散热"] --> D["加热控制MOSFET"]
E["三级散热"] --> F["辅助开关MOSFET"]
G["温度传感器1"] --> H["MCU"]
I["温度传感器2"] --> H
H --> J["风扇控制"]
H --> K["功率降额"]
end
subgraph "电气保护网络"
L["电流检测"] --> M["比较器"]
M --> N["过流保护"]
N --> O["驱动关断"]
P["电压检测"] --> Q["过压保护"]
Q --> O
R["RC吸收"] --> S["电机端子"]
T["TVS阵列"] --> U["MOSFET栅极"]
V["稳压管"] --> W["辅助开关栅极"]
end
subgraph "EMI抑制设计"
X["输入端"] --> Y["π型滤波器"]
Y --> Z["电源总线"]
AA["电机端"] --> BB["并联电容"]
CC["长导线"] --> DD["磁珠滤波"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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