graph LR
%% 电源输入与防护
subgraph "电源输入与防护层"
A["28V/12V航空电子总线"] --> B["π型EMI滤波器"]
B --> C["TVS瞬态抑制阵列"]
C --> D["输入过流保护"]
end
%% 核心处理器供电
subgraph "核心处理器供电(10W-50W)"
D --> E["VBQF1307主电源开关 \n 30V/35A/Rds=7.5mΩ"]
E --> F["同步Buck变换器"]
F --> G["高算力SoC处理器 \n 3.3V/1.8V/1.2V"]
F --> H["DDR内存供电"]
end
%% 传感器阵列供电
subgraph "多传感器阵列电源管理"
E --> I["多路电源分配节点"]
subgraph "传感器电源开关矩阵"
J1["VBQG5222双路开关 \n N+P/±20V/±5A"]
J2["VBQG5222双路开关 \n N+P/±20V/±5A"]
J3["VBQG5222双路开关 \n N+P/±20V/±5A"]
end
I --> J1
I --> J2
I --> J3
J1 --> K1["激光雷达模组"]
J2 --> K2["高清相机模组"]
J3 --> K3["IMU惯性单元"]
end
%% 通信接口控制
subgraph "通信接口切换控制"
subgraph "接口隔离开关"
L1["VBQG5222电平转换 \n 信号隔离"]
L2["VBQG5222电平转换 \n 信号隔离"]
end
G --> L1
G --> L2
L1 --> M1["4G/5G通信模块"]
L2 --> M2["数传电台模块"]
end
%% 外围功能管理
subgraph "外围辅助功能管理"
subgraph "备份电源与辅助控制"
N1["VBK2298高侧开关 \n -20V/-3.1A/SC70"]
N2["VBK2298高侧开关 \n -20V/-3.1A/SC70"]
N3["VBK2298高侧开关 \n -20V/-3.1A/SC70"]
end
D --> N1
D --> N2
D --> N3
N1 --> O1["GPS/北斗备份电源"]
N2 --> O2["状态指示灯阵列"]
N3 --> O3["冷却风扇控制"]
end
%% 热管理与保护
subgraph "热管理与系统保护"
P["NTC温度传感器阵列"] --> Q["MCU热监控单元"]
Q --> R["PWM风扇调速"]
R --> O3
subgraph "过流保护电路"
S["高精度采样电阻"]
T["高速比较器"]
U["故障锁存器"]
end
E --> S
S --> T
T --> U
U --> E
end
%% 样式定义
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style J1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style L1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#fce4ec,stroke:#e91e63,stroke-width:2px
graph LR
subgraph "主电源开关路径"
A["28V航空总线"] --> B["输入滤波电容"]
B --> C["VBQF1307主开关 \n DFN8(3x3)"]
C --> D["同步Buck控制器"]
D --> E["上管MOSFET"]
D --> F["下管MOSFET \n VBQF1307"]
E --> G["电感L1"]
F --> G
G --> H["输出滤波网络"]
end
subgraph "多电压域分配"
H --> I["核心电压域 \n 1.2V@10A"]
H --> J["IO电压域 \n 3.3V@5A"]
H --> K["内存电压域 \n 1.8V@8A"]
I --> L["高算力SoC \n GPU/CPU/NPU"]
J --> M["高速接口 \n PCIe/USB3.0"]
K --> N["LPDDR4X内存 \n 8GB"]
end
subgraph "热管理设计"
O["PCB底层敷铜 \n ≥150mm²"] --> C
O --> F
P["散热过孔阵列"] --> O
Q["金属壳体导热"] --> O
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
多传感器电源序列控制拓扑图
graph TB
subgraph "电源序列控制器"
A["MCU GPIO矩阵"] --> B["时序控制逻辑"]
B --> C["上电序列发生器"]
end
subgraph "激光雷达电源通道"
C --> D["通道1使能"]
D --> E["VBQG5222 N管 \n Rds=24mΩ"]
D --> F["VBQG5222 P管 \n Rds=40mΩ"]
E --> G["12V电源输出"]
F --> H["5V电源输出"]
G --> I["激光雷达发射"]
H --> J["激光雷达接收"]
end
subgraph "相机模组电源通道"
C --> K["通道2使能"]
K --> L["VBQG5222 N管"]
K --> M["VBQG5222 P管"]
L --> N["3.3V模拟电源"]
M --> O["1.8V数字电源"]
N --> P["图像传感器"]
O --> Q["ISP处理器"]
end
subgraph "IMU电源通道"
C --> R["通道3使能"]
R --> S["VBQG5222 N管"]
R --> T["VBQG5222 P管"]
S --> U["5V陀螺仪电源"]
T --> V["3.3V加速计电源"]
U --> W["MEMS陀螺仪"]
V --> X["MEMS加速计"]
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
外围辅助功能管理拓扑图
graph LR
subgraph "备份电源切换系统"
A["主电源28V"] --> B["VBK2298主路开关 \n SC70-3"]
C["备份电池24V"] --> D["VBK2298备份开关 \n SC70-3"]
B --> E["或二极管逻辑"]
D --> E
E --> F["GPS/北斗模块 \n 持续供电"]
end
subgraph "状态指示控制"
G["MCU GPIO"] --> H["限流电阻"]
H --> I["VBK2298 LED开关"]
I --> J["RGB状态指示灯"]
J --> K["电流<20mA"]
end
subgraph "冷却风扇管理"
L["PWM调速信号"] --> M["电平转换"]
M --> N["VBK2298风扇开关"]
N --> O["直流无刷风扇"]
P["续流二极管"] --> N
O --> P
end
subgraph "ESD与浪涌防护"
Q["TVS阵列 \n SMBJ5.0A"] --> B
Q --> D
Q --> I
Q --> N
R["栅极保护电阻 \n 47-100Ω"] --> B
R --> D
R --> I
R --> N
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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