graph LR
subgraph "三相双向变流拓扑"
A[电网输入] --> B[LC滤波器]
B --> C[三相桥臂]
subgraph "高压IGBT桥臂"
D["VBP113MI25B \n 1350V/25A"]
E["VBP113MI25B \n 1350V/25A"]
F["VBP113MI25B \n 1350V/25A"]
end
C --> D
C --> E
C --> F
D --> G[直流母线电容]
E --> G
F --> G
G --> H[高压直流母线]
I[PWM控制器] --> J[隔离驱动器]
J --> D
J --> E
J --> F
end
subgraph "驱动与保护"
K[驱动电源] --> J
subgraph "缓冲保护电路"
L[RC吸收网络]
M[RCD钳位电路]
N[TVS阵列]
end
L --> D
M --> G
N --> J
O[电流传感器] --> P[过流保护]
P --> I
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电池侧DC/DC变换与均衡拓扑详图
graph TB
subgraph "双向DC/DC变换器"
A[高压直流母线] --> B[输入电容]
B --> C[半桥开关节点]
subgraph "低压大电流MOSFET"
D["VBGL11203 \n 120V/190A"]
E["VBGL11203 \n 120V/190A"]
end
C --> D
C --> E
D --> F[变压器初级]
E --> G[初级地]
F --> H[隔离变压器]
H --> I[变压器次级]
I --> J[同步整流节点]
subgraph "次级同步整流"
K["VBGL11203 \n 120V/190A"]
L["VBGL11203 \n 120V/190A"]
end
J --> K
J --> L
K --> M[输出滤波]
L --> N[输出地]
M --> O[电池侧输出]
P[DC/DC控制器] --> Q[栅极驱动器]
Q --> D
Q --> E
Q --> K
Q --> L
end
subgraph "电池主动均衡"
R[电池单体1] --> S[均衡开关]
T[电池单体2] --> S
U[电池单体3] --> S
S --> V[均衡电感]
V --> W[均衡电容]
W --> X[均衡控制器]
X --> S
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
电池监测单元(BMU)精细管理拓扑详图
graph LR
subgraph "多通道电压采样"
A[电池单体1] --> B["VBQA3316 \n 通道1"]
C[电池单体2] --> D["VBQA3316 \n 通道2"]
E[电池单体3] --> F["VBQA3316 \n 通道3"]
G[电池单体4] --> H["VBQA3316 \n 通道4"]
B --> I[多路复用器]
D --> I
F --> I
H --> I
I --> J[ADC输入]
J --> K[BMS AFE]
end
subgraph "温度采样与保护"
L[NTC传感器1] --> M["VBQA3316 \n 温度开关"]
N[NTC传感器2] --> O["VBQA3316 \n 温度开关"]
M --> P[温度ADC]
O --> P
P --> K
Q[保护逻辑] --> R[控制信号]
R --> B
R --> M
end
subgraph "电源路径管理"
S[12V辅助电源] --> T["VBQA3316 \n 电源开关1"]
U[备用电源] --> V["VBQA3316 \n 电源开关2"]
T --> W[BMU主电源]
V --> W
W --> X[各功能模块]
Y[MCU GPIO] --> Z[电平转换]
Z --> T
Z --> V
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style M fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style T fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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