graph LR
subgraph "高压主回路"
A["矿山电池包 \n 400-800VDC"] --> B[主接触器]
B --> C[预充电电阻]
C --> D["VBM17R20SE \n 预充开关"]
D --> E[高压直流母线]
B --> F["VBM17R20SE \n 主正极开关"]
B --> G["VBM17R20SE \n 主负极开关"]
F --> E
G --> H[高压地]
end
subgraph "驱动与保护"
I[高压驱动器] --> J[隔离变压器]
J --> K[驱动信号]
K --> D
K --> F
K --> G
subgraph "电压尖峰抑制"
L[RC缓冲电路]
M[TVS阵列]
N[压敏电阻]
end
L --> F
M --> E
N --> E
end
subgraph "监测与控制"
O[BMS主控] --> P[电压检测]
O --> Q[电流检测]
O --> R[温度检测]
P --> E
Q --> F
R --> S[散热器]
S --> F
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
双向DC-DC变换器拓扑详图
graph TB
subgraph "双向DC-DC功率级"
A[高压母线] --> B["VBM16016N \n 高压侧开关"]
B --> C[高频变压器初级]
C --> D["VBM16016N \n 低压侧开关"]
D --> E[低压直流母线]
F[双向控制器] --> G[栅极驱动器]
G --> B
G --> D
subgraph "谐振与滤波"
H[LLC谐振电容]
I[LLC谐振电感]
J[输出滤波电容]
end
B --> H
H --> I
I --> C
E --> J
end
subgraph "控制与保护"
K[电流检测] --> L[控制器ADC]
M[电压检测] --> L
N[温度检测] --> L
L --> O[PWM发生器]
O --> G
subgraph "保护电路"
P[过流比较器]
Q[过压比较器]
R[短路保护]
end
K --> P
M --> Q
P --> S[故障锁存]
Q --> S
R --> S
S --> T[关断信号]
T --> G
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
低压配电与负载管理拓扑详图
graph LR
subgraph "智能负载开关阵列"
A[MCU GPIO] --> B[电平转换器]
B --> C["VBQA1308 \n 电机控制器开关"]
B --> D["VBQA1308 \n 传感器总线开关"]
B --> E["VBQA1308 \n 通信电源开关"]
B --> F["VBQA1308 \n 紧急负载开关"]
G[12V/24V电源] --> C
G --> D
G --> E
G --> F
C --> H[电机控制器]
D --> I[传感器网络]
E --> J[通信模块]
F --> K[安全系统]
end
subgraph "同步Buck变换器"
L[低压母线] --> M["VBQA1308 \n 高侧开关"]
M --> N[滤波电感]
N --> O[输出电容]
O --> P[3.3V/5V电源]
Q["VBQA1308 \n 低侧开关"] --> L
N --> Q
R[PWM控制器] --> S[同步驱动器]
S --> M
S --> Q
end
subgraph "热管理与保护"
T[PCB散热层] --> C
T --> M
U[温度传感器] --> V[MCU ADC]
V --> W[过温保护]
subgraph "电流检测"
X[采样电阻]
Y[电流放大器]
end
C --> X
X --> Y
Y --> V
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style M fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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