graph LR
subgraph "三相逆变桥拓扑"
A[36VDC输入] --> B[直流母线电容]
B --> C[三相逆变桥]
subgraph "上桥臂MOSFET"
Q_UH["VBGP1402"]
Q_VH["VBGP1402"]
Q_WH["VBGP1402"]
end
subgraph "下桥臂MOSFET"
Q_UL["VBGP1402"]
Q_VL["VBGP1402"]
Q_WL["VBGP1402"]
end
C --> Q_UH
C --> Q_VH
C --> Q_WH
Q_UH --> D[U相输出]
Q_VH --> E[V相输出]
Q_WH --> F[W相输出]
Q_UL --> G[逆变器地]
Q_VL --> G
Q_WL --> G
D --> H[三相交流电机]
E --> H
F --> H
end
subgraph "驱动与保护"
I[FOC控制器] --> J[三相栅极驱动器]
J --> Q_UH
J --> Q_VH
J --> Q_WH
J --> Q_UL
J --> Q_VL
J --> Q_WL
K[电流传感器] --> I
L[霍尔传感器] --> I
M[温度传感器] --> I
N[RC缓冲电路] --> Q_UH
N --> Q_VH
N --> Q_WH
end
style Q_UH fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_UL fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#f3e5f5,stroke:#9c27b0,stroke-width:2px
DC-DC升降压变换器拓扑详图
graph TB
subgraph "升降压变换器(Boost-Buck)"
A[电池36VDC] --> B[输入滤波]
B --> C[开关节点]
subgraph "功率开关MOSFET"
Q_LOW["VBL17R10S \n 低侧开关"]
Q_HIGH["VBL17R10S \n 高侧开关"]
Q_SYNC["VBL17R10S \n 同步整流"]
end
C --> Q_LOW
Q_LOW --> D[地]
C --> E[升降压电感]
E --> Q_HIGH
Q_HIGH --> F[高压输出400VDC]
F --> G[输出滤波]
G --> H[高压负载]
H --> I[能量回收路径]
I --> E
F --> J[同步整流节点]
J --> Q_SYNC
Q_SYNC --> D
end
subgraph "控制与保护"
K[升降压控制器] --> L[栅极驱动器]
L --> Q_LOW
L --> Q_HIGH
L --> Q_SYNC
M[电压反馈] --> K
N[电流反馈] --> K
O[温度监测] --> K
P[RCD缓冲] --> Q_HIGH
Q[TVS保护] --> F
end
subgraph "负载管理"
H --> R[空调压缩机]
H --> S[PTC加热器]
H --> T[其他高压负载]
end
style Q_HIGH fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_LOW fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理与热控拓扑详图
graph LR
subgraph "智能配电开关通道"
A[MCU GPIO] --> B[电平转换]
B --> C["VBQA2611输入"]
subgraph C ["VBQA2611 双P-MOS"]
direction LR
GATE1[栅极1]
GATE2[栅极2]
SOURCE1[源极1]
SOURCE2[源极2]
DRAIN1[漏极1]
DRAIN2[漏极2]
end
AUX_POWER[12V辅助电源] --> SOURCE1
AUX_POWER --> SOURCE2
DRAIN1 --> D[负载1: AI计算单元]
DRAIN2 --> E[负载2: 传感器]
D --> F[地]
E --> F
end
subgraph "三级热管理系统"
subgraph "一级: 主动散热"
G[液冷板/强制风冷] --> H[主驱MOSFET]
I[温度传感器] --> J[MCU]
J --> K[PWM控制器]
K --> L[水泵/风扇]
end
subgraph "二级: 强化导热"
M[铝散热器+导热硅脂] --> N[高压MOSFET]
O[结构散热] --> P[车体散热]
end
subgraph "三级: 自然散热"
Q[PCB大面积敷铜] --> R[配电IC]
S[空气流通] --> T[自然对流]
end
end
subgraph "故障诊断与保护"
U[过流检测] --> V[比较器]
V --> W[故障锁存]
W --> X[快速关断信号]
X --> C
Y[温度监测] --> Z[热保护]
Z --> X
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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