graph LR
subgraph "三相PFC升压电路"
A["三相380VAC输入"] --> B["EMI滤波器"]
B --> C["三相整流桥"]
C --> D["直流母线电容"]
D --> E["PFC升压电感"]
E --> F["PFC开关节点"]
F --> G["VBP112MC50-4L \n SiC MOSFET"]
G --> H["高压直流输出 \n ~540VDC"]
I["PFC控制器"] --> J["SiC专用驱动器"]
J --> G
H --> K["母线电压反馈"]
K --> I
end
subgraph "LLC谐振变换电路"
H --> L["LLC谐振电容"]
L --> M["LLC谐振电感"]
M --> N["高频变压器初级"]
N --> O["LLC开关节点"]
O --> P["VBP112MC50-4L \n SiC MOSFET"]
P --> Q["初级地"]
R["LLC控制器"] --> S["隔离驱动器"]
S --> P
N --> T["谐振电流检测"]
T --> R
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style P fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
同步整流与大电流输出级拓扑详图
graph TB
subgraph "多相同步整流"
A["变压器次级绕组"] --> B["同步整流节点"]
subgraph "并联同步整流桥"
C["VBGL11505 \n 150V/140A"]
D["VBGL11505 \n 150V/140A"]
E["VBGL11505 \n 150V/140A"]
F["VBGL11505 \n 150V/140A"]
end
B --> C
B --> D
B --> E
B --> F
C --> G["输出滤波电感"]
D --> G
E --> G
F --> G
G --> H["输出滤波电容"]
H --> I["低压直流母线"]
J["同步整流控制器"] --> K["多路驱动器"]
K --> C
K --> D
K --> E
K --> F
end
subgraph "多相并联输出级"
I --> L["电流分配节点"]
subgraph "并联调整模块"
M["VBM1302 \n 30V/140A"]
N["VBM1302 \n 30V/140A"]
O["VBM1302 \n 30V/140A"]
end
L --> M
L --> N
L --> O
M --> P["输出汇流排"]
N --> P
O --> P
P --> Q["最终输出端子"]
Q --> R["电镀槽负载"]
S["电流控制MCU"] --> T["均流控制器"]
T --> M_GATE["MOSFET栅极"]
T --> N_GATE["MOSFET栅极"]
T --> O_GATE["MOSFET栅极"]
U["霍尔电流传感器"] --> S
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style M fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保护电路与热管理拓扑详图
graph LR
subgraph "多级保护网络"
A["过压保护电路"] --> B["比较器阵列"]
C["过流保护电路"] --> B
D["过热保护电路"] --> B
E["短路检测电路"] --> B
B --> F["故障锁存器"]
F --> G["全局关断信号"]
G --> H["栅极驱动器禁用"]
H --> I["所有功率MOSFET"]
subgraph "缓冲与吸收电路"
J["RCD缓冲网络"] --> K["PFC开关管"]
L["RC吸收电路"] --> M["LLC开关管"]
N["TVS保护阵列"] --> O["栅极驱动芯片"]
P["肖特基并联"] --> Q["同步整流管"]
end
end
subgraph "智能热管理系统"
R["一级水冷散热"] --> S["输出级MOSFET \n VBM1302"]
T["二级强制风冷"] --> U["同步整流MOSFET \n VBGL11505"]
V["三级自然散热"] --> W["初级侧SiC MOSFET \n VBP112MC50-4L"]
X["多点温度传感器"] --> Y["热管理MCU"]
Y --> Z["风扇PWM控制"]
Y --> AA["水泵速度控制"]
Z --> AB["冷却风扇组"]
AA --> AC["循环水泵"]
end
style K fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style S fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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