graph LR
subgraph "PFC级电路"
A["市电输入 \n 220VAC"] --> B["EMI滤波器"]
B --> C["全桥整流"]
C --> D["PFC电感"]
D --> E["PFC开关节点"]
E --> F["VBL165R20S \n 650V/20A"]
F --> G["高压直流母线 \n ~400VDC"]
H["PFC控制器"] --> I["栅极驱动器"]
I --> F
G -->|电压反馈| H
end
subgraph "DC-DC变换级"
G --> J["高频变压器 \n 初级"]
J --> K["开关管"]
K --> L["初级地"]
M["PWM控制器"] --> N["驱动电路"]
N --> K
J --> O["变压器 \n 次级"]
O --> P["整流电路"]
P --> Q["输出滤波"]
end
subgraph "多路输出"
Q --> R["24V输出"]
Q --> S["48V输出"]
Q --> T["12V输出 \n (辅助电源)"]
Q --> U["5V输出 \n (逻辑电源)"]
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style K fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电机驱动拓扑详图
graph TB
subgraph "H桥驱动电路"
A["24V电源总线"] --> B["上桥臂1"]
A --> C["上桥臂2"]
subgraph B ["上桥臂1"]
direction LR
Q_U1["VBE1402 \n 40V/120A"]
end
subgraph C ["上桥臂2"]
direction LR
Q_U2["VBE1402 \n 40V/120A"]
end
B --> D["电机节点A"]
C --> E["电机节点B"]
subgraph F ["下桥臂1"]
direction LR
Q_L1["VBE1402 \n 40V/120A"]
end
subgraph G ["下桥臂2"]
direction LR
Q_L2["VBE1402 \n 40V/120A"]
end
D --> Q_L1
E --> Q_L2
Q_L1 --> H["地"]
Q_L2 --> H
D --> I["直流电机"]
E --> I
J["电机控制器"] --> K["预驱芯片"]
K --> Q_U1
K --> Q_U2
K --> Q_L1
K --> Q_L2
end
subgraph "保护与检测"
L["电流检测电阻"] --> M["电流检测IC"]
M --> J
N["温度传感器"] --> J
O["TVS吸收电路"] --> Q_U1
P["续流二极管"] --> I
end
style Q_U1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_L1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "多路负载开关控制"
A["主控MCU"] --> B["GPIO扩展"]
B --> C["电平转换电路"]
C --> D["VBA1101M \n 照明控制"]
C --> E["VBA1101M \n 显示控制"]
C --> F["VBA1101M \n 制冷控制"]
C --> G["VBA1101M \n 风扇控制"]
C --> H["VBA1101M \n 支付控制"]
C --> I["VBA1101M \n 通信控制"]
subgraph D ["照明控制通道"]
direction TB
POWER_24V1["24V电源"] --> Q_SW1["VBA1101M"]
Q_SW1 --> LOAD_LIGHT["LED照明"]
LOAD_LIGHT --> GND1["地"]
end
subgraph E ["显示控制通道"]
direction TB
POWER_12V["12V电源"] --> Q_SW2["VBA1101M"]
Q_SW2 --> LOAD_DISPLAY["显示屏"]
LOAD_DISPLAY --> GND2["地"]
end
subgraph F ["制冷控制通道"]
direction TB
POWER_48V["48V电源"] --> Q_SW3["VBA1101M"]
Q_SW3 --> LOAD_COOLING["制冷压缩机"]
LOAD_COOLING --> GND3["地"]
end
end
subgraph "保护电路"
J["保险丝阵列"] --> Q_SW1
J --> Q_SW2
J --> Q_SW3
K["电流检测"] --> A
L["过温保护"] --> A
M["ESD保护"] --> C
end
style Q_SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q_SW2 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style Q_SW3 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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