graph LR
subgraph "升降压DC-DC转换器"
A[车辆蓄电池] --> B[输入保护]
B --> C[EMI滤波器]
C --> D[输入电容]
D --> E["VBFB165R08SE \n 主开关"]
E --> F[功率电感]
F --> G[输出电容]
G --> H[稳定直流总线]
I[升降压控制器] --> J[栅极驱动器]
J --> E
H -->|电压反馈| I
end
subgraph "保护与监控"
K[负载突降保护] --> E
L[过压检测] --> M[保护锁存]
N[过流检测] --> M
M --> O[关断信号]
O --> J
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
压缩机/TEC驱动拓扑详图
graph TB
subgraph "半桥功率级"
A[系统直流总线] --> B["VBL1402 \n 高侧开关"]
B --> C[桥臂中点]
C --> D[压缩机/TEC负载]
D --> E["VBL1402 \n 低侧开关"]
E --> F[功率地]
G[半桥控制器] --> H[高侧驱动器]
G --> I[低侧驱动器]
H --> B
I --> E
end
subgraph "保护与检测"
J[电流检测] --> K[过流比较器]
L[堵转检测] --> M[故障处理器]
N[温度检测] --> O[过温保护]
K --> P[保护信号]
M --> P
O --> P
P --> Q[关断控制]
Q --> G
end
subgraph "负载类型"
C --> R[直流压缩机]
C --> S[半导体制冷片]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载控制拓扑详图
graph LR
subgraph "高侧负载开关通道"
A[MCU GPIO] --> B[电平转换]
B --> C["VBE1154N栅极"]
subgraph C ["VBE1154N N-MOSFET"]
direction LR
GATE[栅极]
SOURCE[源极]
DRAIN[漏极]
end
D[系统总线] --> DRAIN
SOURCE --> E[负载]
E --> F[地]
end
subgraph "PWM风扇控制"
G[MCU PWM] --> H[风扇驱动器]
H --> I["VBE1154N栅极"]
J[系统总线] --> K["VBE1154N漏极"]
K --> L[风扇电机]
L --> M[电流检测]
M --> N[地]
I --> K
end
subgraph "温度监控与AI控制"
O[箱内温度传感器] --> P[MCU ADC]
Q[环境温度传感器] --> P
R[冷凝器温度传感器] --> P
P --> S[AI温控算法]
S --> T[压缩机转速控制]
S --> U[风扇PWM控制]
S --> V[除霜逻辑]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护拓扑详图
graph TB
subgraph "三级热管理架构"
A["一级: PCB敷铜散热"] --> B["VBFB165R08SE"]
C["二级: 大面积敷铜+散热基板"] --> D["VBL1402 MOSFET"]
E["三级: 强制风冷"] --> F["压缩机/冷凝器"]
G["智能风扇控制"] --> H["循环风扇"]
H --> I[热量散发]
end
subgraph "电气保护网络"
J["RC缓冲电路"] --> K["VBFB165R08SE"]
L["TVS保护"] --> M["VBL1402漏源极"]
N["肖特基续流"] --> O["压缩机感性负载"]
P["电流采样电阻"] --> Q["过流保护电路"]
R["温度传感器"] --> S["过温保护"]
Q --> T[故障锁存]
S --> T
T --> U[系统关断]
U --> V[所有MOSFET栅极]
end
subgraph "EMC设计"
W["输入滤波器"] --> X[传导噪声抑制]
Y["功率回路最小化"] --> Z[辐射噪声抑制]
AA["屏蔽措施"] --> AB[外部干扰防护]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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