graph LR
subgraph "三相PFC升压变换器"
A["三相380VAC \n 输入"] --> B["EMI滤波器"]
B --> C["三相整流桥"]
C --> D["PFC升压电感"]
D --> E["PFC开关节点"]
subgraph "三相SiC MOSFET桥臂"
Q_U["VBP112MC60 \n 上管"]
Q_V["VBP112MC60 \n 上管"]
Q_W["VBP112MC60 \n 上管"]
Q_X["VBP112MC60 \n 下管"]
Q_Y["VBP112MC60 \n 下管"]
Q_Z["VBP112MC60 \n 下管"]
end
E --> Q_U
E --> Q_V
E --> Q_W
Q_U --> F["高压直流母线 \n 650-800VDC"]
Q_V --> F
Q_W --> F
Q_X --> G["PFC地"]
Q_Y --> G
Q_Z --> G
H["PFC控制器"] --> I["SiC专用驱动器 \n 带负压关断"]
I --> Q_U
I --> Q_V
I --> Q_W
I --> Q_X
I --> Q_Y
I --> Q_Z
F -->|电压反馈| H
end
subgraph "驱动与保护"
J["隔离电源"] --> I
K["RC缓冲电路"] --> Q_U
L["RCD缓冲网络"] --> Q_U
M["去饱和保护"] --> I
N["TVS阵列"] --> I
end
style Q_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC-DC变换与同步整流拓扑详图
graph TB
subgraph "LLC谐振变换级"
A["高压直流母线"] --> B["LLC谐振腔 \n Lr-Cr-Lm"]
B --> C["高频变压器 \n 初级"]
subgraph "LLC主开关"
Q_LLC_H["VBP112MC60 \n 上管"]
Q_LLC_L["VBP112MC60 \n 下管"]
end
C --> D["LLC开关节点"]
D --> Q_LLC_H
D --> Q_LLC_L
Q_LLC_H --> E["LLC地"]
Q_LLC_L --> E
F["LLC控制器"] --> G["隔离驱动器"]
G --> Q_LLC_H
G --> Q_LLC_L
end
subgraph "同步整流级"
H["变压器次级"] --> I["同步整流节点"]
subgraph "同步整流MOSFET桥臂"
Q_SR1["VBP165R32SE \n 650V/32A"]
Q_SR2["VBP165R32SE \n 650V/32A"]
Q_SR3["VBP165R32SE \n 650V/32A"]
Q_SR4["VBP165R32SE \n 650V/32A"]
end
I --> Q_SR1
I --> Q_SR2
I --> Q_SR3
I --> Q_SR4
Q_SR1 --> J["输出滤波电感"]
Q_SR2 --> J
Q_SR3 --> K["输出地"]
Q_SR4 --> K
J --> L["输出电容"]
L --> M["直流输出 \n 200-1000VDC"]
N["同步整流控制器"] --> O["隔离驱动器"]
O --> Q_SR1
O --> Q_SR2
O --> Q_SR3
O --> Q_SR4
end
style Q_LLC_H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_SR1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
预充控制与安全管理拓扑详图
graph LR
subgraph "输出预充控制回路"
A["直流输出正极"] --> B["预充开关控制点"]
subgraph "预充MOSFET控制"
Q_PRE["VBE2345 \n P-MOSFET"]
end
B --> Q_PRE
Q_PRE --> C["预充电阻 \n 限制浪涌电流"]
C --> D["车辆接口正极"]
E["主接触器"] --> D
A --> E
subgraph "控制逻辑"
F["主控MCU"] --> G["电平转换电路"]
G --> H["预充驱动器"]
H --> Q_PRE
I["电流检测电路"] --> J["比较器"]
J --> K["故障锁存"]
K --> L["关断信号"]
L --> H
M["电压检测"] --> N["预充完成判断"]
N --> F
end
subgraph "辅助负载管理"
O["12V辅助电源"] --> P["VBE2345负载开关1"]
O --> Q["VBE2345负载开关2"]
O --> R["VBE2345负载开关3"]
F --> S["PWM控制"]
S --> P
S --> Q
S --> R
P --> T["散热风扇"]
Q --> U["液冷泵"]
R --> V["通信模块"]
end
style Q_PRE fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style P fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBP112MC60规格书
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