graph LR
subgraph "反激式开关电源拓扑"
A[220VAC输入] --> B[EMI滤波器]
B --> C[整流桥]
C --> D["高压直流 \n ~310VDC"]
D --> E[反激变压器初级]
E --> F["开关节点"]
F --> G["VBMB165R05SE \n 650V/5A"]
G --> H[初级地]
I[PWM控制器] --> J[栅极驱动器]
J --> G
K[反馈网络] --> I
subgraph "次级输出"
E2[变压器次级] --> L[整流二极管]
L --> M[LC滤波器]
M --> N["24V/12V/5V输出"]
end
end
subgraph "保护电路"
O[RCD缓冲电路] --> G
P[过压保护] --> I
Q[过流检测] --> I
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
超声波雾化驱动拓扑详图
graph TB
subgraph "全桥驱动拓扑"
A[24V直流输入] --> B[输入滤波电容]
B --> C["全桥功率级"]
subgraph C ["四路MOSFET全桥"]
direction LR
Q1["VBGL7103 \n 高侧1"]
Q2["VBGL7103 \n 高侧2"]
Q3["VBGL7103 \n 低侧1"]
Q4["VBGL7103 \n 低侧2"]
end
D[超声波驱动IC] --> E[全桥驱动器]
E --> Q1
E --> Q2
E --> Q3
E --> Q4
Q1 --> F["输出A"]
Q2 --> G["输出B"]
Q3 --> H[功率地]
Q4 --> H
F --> I[超声波雾化片]
G --> I
end
subgraph "谐振匹配网络"
I --> J[匹配电感]
J --> K[匹配电容]
K --> L[谐振点优化]
end
subgraph "保护与监控"
M[电流检测] --> N[过流保护]
O[温度检测] --> P[过热保护]
Q[频率跟踪] --> D
end
style Q1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q3 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "双路负载独立控制"
A[MCU GPIO] --> B[电平转换]
B --> C["VBQA3102N \n 通道1控制"]
B --> D["VBQA3102N \n 通道2控制"]
subgraph E ["VBQA3102N 内部结构"]
direction TB
IN1[栅极1]
IN2[栅极2]
S1[源极1]
S2[源极2]
D1[漏极1]
D2[漏极2]
end
C --> IN1
D --> IN2
F[12V电源] --> D1
F --> D2
S1 --> G[水泵负载]
S2 --> H[风机负载]
G --> I[负载地]
H --> I
end
subgraph "PWM调速控制"
J[MCU PWM输出] --> K[频率调节]
K --> B
L[占空比控制] --> B
end
subgraph "保护功能"
M[电流采样] --> N[过流检测]
N --> O[故障信号]
O --> A
P[温度监控] --> Q[过热保护]
Q --> A
end
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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