graph LR
subgraph "三相PFC升压电路"
A["三相380VAC输入"] --> B["EMI滤波器 \n X/Y电容+共模电感"]
B --> C["三相整流桥"]
C --> D["PFC升压电感"]
D --> E["PFC开关节点"]
E --> F["VBE17R20S \n 700V/20A TO-252"]
F --> G["高压直流母线 \n ~540VDC"]
G --> H["直流母线电容"]
end
subgraph "控制与驱动"
I["PFC控制器"] --> J["隔离驱动芯片 \n Si8233"]
J --> K["驱动电阻网络"]
K --> F
G -->|电压采样| I
L["电流检测电阻"] -->|电流反馈| I
end
subgraph "保护电路"
M["RC吸收网络"] --> F
N["TVS阵列 \n SMBJ系列"] --> J
O["气体放电管"] --> A
P["压敏电阻"] --> G
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style J fill:#fce4ec,stroke:#e91e63,stroke-width:2px
三相逆变与电机驱动拓扑详图
graph TB
subgraph "三相逆变桥"
A["直流母线 \n 72V/96V/144V"] --> B["U相上管 \n VBMB1206N"]
A --> C["V相上管 \n VBMB1206N"]
A --> D["W相上管 \n VBMB1206N"]
B --> E["U相输出"]
C --> F["V相输出"]
D --> G["W相输出"]
E --> H["U相下管 \n VBMB1206N"]
F --> I["V相下管 \n VBMB1206N"]
G --> J["W相下管 \n VBMB1206N"]
H --> K[功率地]
I --> K
J --> K
end
subgraph "三相驱动电路"
L["三相驱动IC \n IR2136"] --> M["上管驱动"]
L --> N["下管驱动"]
M --> B
M --> C
M --> D
N --> H
N --> I
N --> J
O["自举电容"] --> M
end
subgraph "输出滤波与保护"
E --> P["输出滤波电感"]
F --> Q["输出滤波电感"]
G --> R["输出滤波电感"]
P --> S["输出RC吸收"]
Q --> T["输出RC吸收"]
R --> U["输出RC吸收"]
S --> V["三相电机 \n 循环泵/压缩机"]
T --> V
U --> V
end
subgraph "电流检测与保护"
W["直流母线 \n 电流检测"] --> X["快速比较器"]
Y["相电流 \n 检测"] --> X
X --> Z["故障锁存"]
Z --> L
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style L fill:#fce4ec,stroke:#e91e63,stroke-width:2px
辅助电源与智能控制拓扑详图
graph LR
subgraph "辅助电源DC-DC"
A["辅助输入 \n 24V/48V"] --> B["DC-DC控制器"]
subgraph "同步整流MOSFET"
Q_PRIMARY["VBGQF1305 \n 主开关"]
Q_SYNC["VBGQF1305 \n 同步整流"]
end
B --> C["栅极驱动器"]
C --> Q_PRIMARY
C --> Q_SYNC
Q_PRIMARY --> D["高频变压器"]
D --> Q_SYNC
Q_SYNC --> E["输出滤波"]
E --> F["辅助总线 \n 12V/5V/3.3V"]
end
subgraph "智能负载开关通道"
F --> G["主控MCU"]
subgraph "负载开关阵列"
SW1["VBGQF1305 \n 控制板电源"]
SW2["VBGQF1305 \n 传感器电源"]
SW3["VBGQF1305 \n 通信电源"]
SW4["VBGQF1305 \n 风扇电源"]
end
G --> H["电平转换/缓冲"]
H --> SW1
H --> SW2
H --> SW3
H --> SW4
SW1 --> I["主控板"]
SW2 --> J["传感器阵列"]
SW3 --> K["通信模块"]
SW4 --> L["散热风扇"]
I --> M[数字地]
J --> M
K --> M
L --> M
end
subgraph "监测与保护"
N["温度传感器"] --> G
O["电流检测"] --> P["过流保护"]
P --> H
Q["TVS保护"] --> SW1
R["栅极串联电阻"] --> SW1
end
style Q_PRIMARY fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#fce4ec,stroke:#e91e63,stroke-width:2px
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