graph LR
subgraph "高频驱动电路"
A["12V/24V直流输入"] --> B["π型EMI滤波器"]
B --> C["储能电容"]
C --> D["VBGQF1305 \n 漏极"]
D --> E["VBGQF1305 \n 源极"]
E --> F["电流检测电阻"]
F --> GND["功率地"]
end
subgraph "控制与驱动"
H["超声波振荡器IC"] --> I["栅极驱动信号"]
I --> J["栅极电阻"]
J --> K["VBGQF1305 \n 栅极"]
L["保护电路"] --> H
end
subgraph "负载连接"
D --> M["变压器初级/雾化片"]
M --> N["谐振匹配网络"]
N --> E
O["过流比较器"] --> P["故障信号"]
P --> H
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
负载电源路径管理拓扑详图
graph TB
subgraph "P-MOS高侧开关"
A["12V辅助电源"] --> B["VBC7P2216 \n 漏极"]
C["MCU GPIO"] --> D["低电平有效"]
D --> E["限流电阻"]
E --> F["VBC7P2216 \n 栅极"]
F --> G["RC滤波网络"]
G --> H["对地稳压管"]
H --> GND1["信号地"]
B --> I["VBC7P2216 \n 源极"]
I --> J["负载电源输出"]
end
subgraph "多路负载分配"
J --> K["散热风扇"]
J --> L["UV-LED杀菌模块"]
J --> M["显示背光"]
J --> N["传感器供电"]
K --> GND2["功率地"]
L --> GND2
M --> GND2
N --> GND2
end
subgraph "智能控制逻辑"
O["湿度传感器"] --> P["MCU算法"]
Q["定时器"] --> P
P --> C
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
H桥电机驱动拓扑详图
graph LR
subgraph "VBBD5222集成半桥"
A["VBBD5222 \n 内部N-MOS"] --> B["漏极N"]
C["VBBD5222 \n 内部P-MOS"] --> D["漏极P"]
E["半桥驱动IC"] --> F["上管驱动"]
E --> G["下管驱动"]
F --> H["VBBD5222 \n 栅极P"]
G --> I["VBBD5222 \n 栅极N"]
J["死区控制"] --> E
end
subgraph "H桥功率级"
K["12V电机电源"] --> L["上管P-MOS"]
K --> M["上管P-MOS"]
B --> N["输出节点A"]
D --> N
O["互补半桥"] --> P["输出节点B"]
N --> Q["直流电机"]
P --> Q
Q --> R["电流检测"]
R --> GND["功率地"]
end
subgraph "控制与保护"
S["MCU PWM"] --> T["方向控制"]
T --> E
U["过流保护"] --> V["关断逻辑"]
V --> E
W["续流二极管"] --> N
W --> P
end
style A fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC7P2216规格书
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