graph LR
subgraph "三相PFC升压级"
A["三相380VAC输入"] --> B["浪涌防护网络"]
B --> C["EMI滤波器"]
C --> D["三相整流桥"]
D --> E["PFC升压电感"]
E --> F["PFC开关节点"]
F --> G["VBMB19R15S \n 900V/15A"]
G --> H["高压直流母线 \n 800-1000VDC"]
I["PFC控制器"] --> J["栅极驱动器"]
J --> G
H -->|电压反馈| I
end
subgraph "LLC谐振变换级"
H --> K["LLC谐振腔 \n Lr+Lm+Cr"]
K --> L["高频变压器初级"]
L --> M["LLC开关节点"]
M --> N["VBMB19R15S \n 900V/15A"]
N --> O["初级地"]
P["LLC控制器"] --> Q["栅极驱动器"]
Q --> N
L -->|电流反馈| P
end
subgraph "输出与保护"
LLC_TRANS_SEC["变压器次级"] --> RECT["同步整流"]
RECT --> FILTER["输出滤波"]
FILTER --> OUT["48V直流输出"]
OUT --> PROTECT["输出保护 \n TVS+OVP"]
PROTECT --> LOAD["负载"]
end
subgraph "吸收与缓冲电路"
S1["RC吸收网络"] --> G
S2["RC吸收网络"] --> N
T["RCD缓冲电路"] --> L
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style N fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
射频功放供电与保护拓扑详图
graph LR
subgraph "48V母线滤波与保护"
A["48V中间总线"] --> B["π型滤波器 \n C-L-C"]
B --> C["TVS保护"]
C --> D["过压保护电路"]
D --> E["过流保护电路"]
E --> F["功放供电节点"]
end
subgraph "大电流开关阵列"
F --> G["开关控制节点"]
subgraph "并联MOSFET阵列"
H1["VBE1606 \n 60V/97A"]
H2["VBE1606 \n 60V/97A"]
H3["VBE1606 \n 60V/97A"]
end
G --> H1
G --> H2
G --> H3
H1 --> I["射频功放供电母线"]
H2 --> I
H3 --> I
end
subgraph "射频功放模块"
I --> J["GaN PA电源管理"]
J --> K["GaN功率放大器"]
K --> L["阻抗匹配网络"]
L --> M["天线端口"]
end
subgraph "驱动与控制"
N["包络跟踪控制器"] --> O["高速栅极驱动器"]
O --> G
P["温度传感器"] --> Q["保护逻辑"]
Q --> R["故障关断信号"]
R --> O
end
subgraph "散热设计"
S["大面积PCB敷铜 \n >300mm²"] --> H1
S --> H2
S --> H3
T["小型散热片"] --> K
end
style H1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#ffebee,stroke:#f44336,stroke-width:2px
辅助电源与智能保护拓扑详图
graph LR
subgraph "辅助电源生成"
A["48V/高压输入"] --> B["辅助电源IC"]
B --> C["12V控制电源"]
B --> D["24V风扇电源"]
B --> E["3.3V数字电源"]
C --> F["LDO稳压器"]
F --> G["1.8V核心电源"]
end
subgraph "智能负载开关矩阵"
subgraph "风扇控制通道"
H1["MCU PWM1"] --> I1["电平转换"]
I1 --> J1["VBA3316通道1"]
K1["12V电源"] --> J1
J1 --> L1["风扇1"]
L1 --> M1["电流检测"]
M1 --> N1["MCU ADC1"]
end
subgraph "传感器供电通道"
H2["MCU GPIO2"] --> I2["电平转换"]
I2 --> J2["VBA3316通道2"]
K2["3.3V电源"] --> J2
J2 --> L2["传感器阵列"]
L2 --> M2["温度/湿度"]
M2 --> N2["MCU ADC2"]
end
subgraph "通信模块控制"
H3["MCU GPIO3"] --> I3["电平转换"]
I3 --> J3["VBA3316通道3"]
K3["3.3V电源"] --> J3
J3 --> L3["5G-A通信模块"]
L3 --> M3["状态反馈"]
M3 --> N3["MCU UART"]
end
end
subgraph "系统保护与监控"
O["过压比较器"] --> P["保护逻辑"]
Q["过流比较器"] --> P
R["过温比较器"] --> P
S["看门狗定时器"] --> P
P --> T["全局复位信号"]
P --> U["电源关断控制"]
U --> J1
U --> J2
U --> J3
end
subgraph "通信接口"
V["MCU"] --> W["CAN总线"]
V --> X["RS485接口"]
V --> Y["以太网PHY"]
V --> Z["无线模块"]
end
style J1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J2 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J3 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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