graph LR
subgraph "BOOST升压电路"
A["光伏输入 \n 200-600VDC"] --> B["输入电容"]
B --> C["升压电感"]
C --> D["升压开关节点"]
D --> E["VBL16R31SFD \n 600V/31A MOSFET"]
E --> F["功率地"]
A --> G["续流二极管"]
G --> H["高压直流母线 \n 600-800VDC"]
D --> H
end
subgraph "MPPT控制回路"
I["MPPT控制器"] --> J["PWM发生器"]
J --> K["栅极驱动器"]
K --> E
L["电压检测"] --> I
M["电流检测"] --> I
N["温度检测"] --> I
end
subgraph "保护电路"
O["输入过压保护"] --> A
P["输出过压保护"] --> H
Q["过流保护"] --> M
R["RC吸收电路"] --> E
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style I fill:#fce4ec,stroke:#e91e63,stroke-width:2px
DC-AC全桥逆变电路拓扑详图
graph TB
subgraph "H桥逆变器"
A["高压直流母线"] --> B["上桥臂开关节点"]
A --> C["下桥臂开关节点"]
subgraph "上桥臂器件"
Q1["VBPB16I60 \n 650V/60A IGBT"]
Q2["VBPB16I60 \n 650V/60A IGBT"]
end
subgraph "下桥臂器件"
Q3["VBPB16I60 \n 650V/60A IGBT"]
Q4["VBPB16I60 \n 650V/60A IGBT"]
end
B --> Q1
B --> Q2
Q1 --> D["交流输出A相"]
Q2 --> E["交流输出B相"]
Q3 --> F["逆变地"]
Q4 --> F
C --> Q3
C --> Q4
D --> G["输出滤波电感"]
E --> H["输出滤波电感"]
G --> I["滤波电容"]
H --> I
I --> J["电网连接"]
end
subgraph "驱动与保护"
K["逆变控制器"] --> L["PWM信号发生器"]
L --> M["上桥驱动器 \n (隔离型)"]
L --> N["下桥驱动器"]
M --> Q1
M --> Q2
N --> Q3
N --> Q4
O["直流电压检测"] --> K
P["交流电流检测"] --> K
Q["温度检测"] --> K
R["RC吸收网络"] --> Q1
R --> Q2
S["TVS保护"] --> M
S --> N
end
style Q1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q3 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#fce4ec,stroke:#e91e63,stroke-width:2px
辅助电源与信号管理拓扑详图
graph LR
subgraph "辅助开关电源"
A["高压直流输入"] --> B["反激/正激变压器 \n 初级"]
B --> C["VBA5206 \n N-MOSFET开关"]
C --> D["功率地"]
E["PWM控制器"] --> F["驱动器"]
F --> C
G["变压器次级"] --> H["整流滤波"]
H --> I["12V辅助电源"]
I --> J["5V稳压器"]
J --> K["3.3V稳压器"]
end
subgraph "信号电平转换"
L["MCU GPIO \n 3.3V电平"] --> M["电平转换电路"]
M --> N["VBA5206 \n 互补MOS对"]
subgraph N["VBA5206 内部结构"]
direction LR
N_CHANNEL[N沟道MOS]
P_CHANNEL[P沟道MOS]
end
O["12V电源"] --> P_CHANNEL
N_CHANNEL --> Q["功率地"]
P_CHANNEL --> R["12V输出信号"]
end
subgraph "驱动信号管理"
S["隔离驱动电源"] --> T["推挽电路"]
T --> U["VBA5206 \n 功率级"]
U --> V["驱动信号输出"]
W["死区时间控制"] --> T
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style U fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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