graph TB
subgraph "隔离型DC-DC变换器"
A["高压直流母线 \n 400-800VDC"] --> B["全桥/LLC初级"]
B --> C["高频变压器"]
subgraph "SiC MOSFET全桥"
Q1["VBP112MC30-4L \n 1200V/30A"]
Q2["VBP112MC30-4L \n 1200V/30A"]
Q3["VBP112MC30-4L \n 1200V/30A"]
Q4["VBP112MC30-4L \n 1200V/30A"]
end
B --> Q1
B --> Q2
B --> Q3
B --> Q4
Q1 --> D["初级地"]
Q2 --> D
Q3 --> D
Q4 --> D
C --> E["次级全波整流"]
E --> F["输出滤波"]
F --> G["中间母线48-96VDC"]
H["SiC专用驱动器"] --> I["隔离驱动变压器"]
I --> Q1
I --> Q2
I --> Q3
I --> Q4
J["PWM控制器"] --> H
K["电压/电流反馈"] --> J
end
subgraph "保护与缓冲电路"
L["RCD缓冲网络"] --> Q1
M["RC吸收电路"] --> Q3
N["开尔文源极连接"] --> Q1
O["过流检测"] --> P["故障锁存"]
P --> J
end
style Q1 fill:#e8f4f8,stroke:#2196f3,stroke-width:2px
关节电机驱动拓扑详图
graph LR
subgraph "三相逆变桥拓扑"
A["48-96V中间母线"] --> B["上桥臂开关节点"]
subgraph "上桥臂MOSFET"
Q_UH["VBGQA1102N \n 100V/30A"]
Q_VH["VBGQA1102N \n 100V/30A"]
Q_WH["VBGQA1102N \n 100V/30A"]
end
B --> Q_UH
B --> Q_VH
B --> Q_WH
Q_UH --> C["U相输出"]
Q_VH --> D["V相输出"]
Q_WH --> E["W相输出"]
subgraph "下桥臂MOSFET"
Q_UL["VBGQA1102N \n 100V/30A"]
Q_VL["VBGQA1102N \n 100V/30A"]
Q_WL["VBGQA1102N \n 100V/30A"]
end
C --> Q_UL
D --> Q_VL
E --> Q_WL
Q_UL --> F["功率地"]
Q_VL --> F
Q_WL --> F
G["三相栅极驱动器"] --> Q_UH
G --> Q_UL
G --> Q_VH
G --> Q_VL
G --> Q_WH
G --> Q_WL
end
subgraph "FOC控制环路"
H["主控MCU"] --> I["Clarke/Park变换"]
I --> J["PI电流调节器"]
J --> K["空间矢量PWM"]
K --> G
L["三相电流采样"] --> M["ADC接口"]
M --> H
N["电机编码器"] --> O["位置/速度检测"]
O --> H
end
subgraph "PCB散热设计"
P["大面积敷铜"] --> Q_UH
P --> Q_UL
R["过孔阵列"] --> S["内部铜层"]
S --> T["金属结构件"]
end
style Q_UH fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
低压负载管理拓扑详图
graph TB
subgraph "智能负载开关通道"
A["5V/12V低压总线"] --> B["VBC6N2022输入端"]
subgraph "VBC6N2022双MOS结构"
direction LR
IN1["栅极控制1"]
IN2["栅极控制2"]
D1["漏极1"]
D2["漏极2"]
S1["共源极输出"]
end
B --> D1
B --> D2
C["MCU GPIO"] --> D["电平转换"]
D --> IN1
D --> IN2
S1 --> E["负载1"]
S1 --> F["负载2"]
E --> G["负载地"]
F --> G
end
subgraph "多路开关阵列"
H["传感器管理"] --> I["VBC6N2022 x2"]
J["计算单元管理"] --> K["VBC6N2022 x3"]
L["外设管理"] --> M["VBC6N2022 x2"]
N["通信模块管理"] --> O["VBC6N2022 x1"]
I --> P["6路传感器供电"]
K --> Q["3个AI单元电源"]
M --> R["显示/音频/IO"]
O --> S["WiFi/蓝牙/CAN"]
end
subgraph "保护功能"
T["软启动控制"] --> IN1
U["过流检测"] --> V["比较器"]
V --> W["关断信号"]
W --> IN1
X["续流二极管"] --> E
Y["TVS保护"] --> B
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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