graph LR
subgraph "BOOST升压拓扑"
A["光伏输入 \n 150-850VDC"] --> B[输入滤波电容]
B --> C[BOOST电感]
C --> D[BOOST开关节点]
D --> E["VBL18R07S \n 800V/7A"]
E --> F["直流母线 \n 1000-1100VDC"]
G[BOOST二极管] --> F
D --> G
H[BOOST控制器] --> I[栅极驱动器]
I --> E
F -->|电压反馈| H
B -->|电流检测| H
end
subgraph "保护电路"
J[RCD钳位电路] --> E
K[TVS阵列] --> I
L[防反接电路] --> A
M[浪涌保护器] --> A
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
逆变桥电路拓扑详图
graph TB
subgraph "三相全桥逆变"
A["直流母线 \n 1000-1100VDC"] --> B[U相桥臂]
A --> C[V相桥臂]
A --> D[W相桥臂]
subgraph "U相桥臂"
direction LR
U_TOP["上管(IGBT/高压MOS)"]
U_BOT["VBGP1201N \n 下管"]
end
subgraph "V相桥臂"
direction LR
V_TOP["上管(IGBT/高压MOS)"]
V_BOT["VBGP1201N \n 下管"]
end
subgraph "W相桥臂"
direction LR
W_TOP["上管(IGBT/高压MOS)"]
W_BOT["VBGP1201N \n 下管"]
end
B --> U_TOP
B --> U_BOT
C --> V_TOP
C --> V_BOT
D --> W_TOP
D --> W_BOT
U_BOT --> E[U相输出]
V_BOT --> F[V相输出]
W_BOT --> G[W相输出]
E --> H[LC滤波器]
F --> H
G --> H
H --> I[三相交流输出]
end
subgraph "驱动与保护"
J[PWM控制器] --> K[隔离驱动器]
K --> U_TOP
K --> U_BOT
K --> V_TOP
K --> V_BOT
K --> W_TOP
K --> W_BOT
L[RC吸收电路] --> B
L --> C
L --> D
M[电流传感器] --> N[过流保护]
N --> O[故障关断]
O --> K
end
style U_BOT fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style V_BOT fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style W_BOT fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能保护与热管理拓扑详图
graph LR
subgraph "智能负载管理"
A[MCU GPIO] --> B[电平转换]
B --> C["VBQF3307 \n 通道1"]
B --> D["VBQF3307 \n 通道2"]
subgraph C ["VBQF3307 双N沟道"]
direction LR
IN1[栅极1]
IN2[栅极2]
S1[源极1]
S2[源极2]
D1[漏极1]
D2[漏极2]
end
VCC_12V[12V辅助电源] --> D1
VCC_12V --> D2
S1 --> E[散热风扇]
S2 --> F[通信模块]
E --> GND
F --> GND
H[温度传感器] --> I[MCU]
I --> J[PWM控制]
J --> C
end
subgraph "三级热管理"
K["一级: 强制风冷"] --> L["逆变桥MOSFET \n 主散热器"]
M["二级: 混合冷却"] --> N["BOOST MOSFET \n 独立散热"]
O["三级: PCB敷铜"] --> P["控制IC与开关"]
Q[温度监测] --> R[动态调控]
R --> K
R --> M
end
subgraph "保护网络"
S[过压保护] --> T[比较器]
U[过流保护] --> T
V[过热保护] --> T
T --> W[故障锁存]
W --> X[全局关断]
X --> Y[驱动器禁用]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style L fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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