graph LR
subgraph "主电源输入选择"
A["航空辅助电源 \n 400Hz/115VAC"] --> B["AC/DC转换器"]
C["车载电源 \n 24V/48VDC"] --> D["DC/DC转换器"]
B --> E["电源选择开关"]
D --> E
end
subgraph "主电源保护与开关"
E --> F["保险丝 \n 过流保护"]
F --> G["TVS阵列 \n 浪涌保护"]
G --> H["π型滤波器 \n EMI抑制"]
H --> I["VBL19R11S \n 900V/11A \n 主开关"]
I --> J["系统主总线 \n 24V/48VDC"]
K["隔离驱动电路"] --> I
L["过压检测"] --> M["故障锁存"]
N["过流检测"] --> M
M --> O["关断信号"]
O --> K
end
subgraph "PCB热设计"
P["大面积铺铜"] --> I
Q["散热过孔阵列"] --> I
R["导热垫"] --> S["金属机壳散热"]
P --> R
end
style I fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style K fill:#fce4ec,stroke:#e91e63,stroke-width:2px
电机与执行器驱动拓扑详图
graph TB
subgraph "直流有刷电机驱动桥"
A["系统主总线"] --> B["VBL1301 \n 高边开关"]
B --> C["电机负载"]
C --> D["VBL1301 \n 低边开关"]
D --> E["地"]
F["电机驱动IC"] --> G["高边驱动器"]
F --> H["低边驱动器"]
G --> B
H --> D
I["电流采样"] --> F
end
subgraph "保护与续流网络"
subgraph "续流通路"
J["快恢复二极管"] --> C
K["快恢复二极管"] --> C
end
subgraph "吸收电路"
L["RC网络 \n 100Ω+1nF"] --> B
M["RC网络 \n 100Ω+1nF"] --> D
end
subgraph "栅极保护"
N["TVS管 \n 10-15V"] --> O["栅极电阻"]
O --> B
P["TVS管 \n 10-15V"] --> Q["栅极电阻"]
Q --> D
end
end
subgraph "PCB布局优化"
R["大电流走线 \n ≥2mm宽度"] --> B
S["电源层分割"] --> T["低电感回路"]
U["栅极驱动 \n 短路径"] --> F
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fce4ec,stroke:#e91e63,stroke-width:2px
通信与感知模块电源管理拓扑详图
graph LR
subgraph "双路负载开关通道"
A["MCU GPIO"] --> B["电平转换"]
B --> C["VB3658输入1"]
C --> D["负载1 \n GNSS模块"]
E["VB3658输入2"] --> F["负载2 \n 数传电台"]
G["12V辅助电源"] --> H["VB3658漏极1"]
G --> I["VB3658漏极2"]
J["VB3658源极1"] --> D
K["VB3658源极2"] --> F
D --> L["地"]
F --> L
end
subgraph "多模块并联扩展"
M["MCU GPIO1"] --> N["VB3658_A \n 通道1"]
M --> O["VB3658_A \n 通道2"]
P["MCU GPIO2"] --> Q["VB3658_B \n 通道1"]
P --> R["VB3658_B \n 通道2"]
S["并联输出"] --> T["大电流负载"]
end
subgraph "保护与EMC设计"
U["栅极串联电阻 \n 10-100Ω"] --> C
V["π型滤波器"] --> W["负载电源入口"]
X["TVS保护"] --> Y["信号线路"]
Z["三防漆涂层"] --> C
end
subgraph "热管理"
A1["PCB铜箔散热"] --> C
B1["自然对流"] --> C
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保护与可靠性增强拓扑详图
graph TB
subgraph "电气保护网络"
A["电源输入"] --> B["保险丝阵列"]
B --> C["TVS浪涌保护"]
C --> D["共模滤波器"]
D --> E["差模滤波器"]
subgraph "MOSFET保护"
F["RCD缓冲"] --> G["高压MOSFET"]
H["RC吸收"] --> I["大电流MOSFET"]
J["栅极TVS"] --> K["所有MOSFET栅极"]
end
end
subgraph "热管理架构"
subgraph "三级散热"
L["一级: 主散热器 \n TO263器件"] --> G
M["二级: PCB敷铜 \n SOT23器件"] --> N["VB3658"]
O["三级: 自然散热 \n 控制IC"] --> P["MCU"]
end
subgraph "温度监控"
Q["NTC传感器1"] --> R["ADC通道"]
S["NTC传感器2"] --> R
R --> T["温度保护算法"]
T --> U["降额控制"]
end
end
subgraph "机械与环境防护"
subgraph "振动防护"
V["硅胶固定"] --> G
W["加强焊盘"] --> N
X["灌封处理"] --> Y["关键区域"]
end
subgraph "环境密封"
Z["防水接头"] --> A1["电源接口"]
B1["三防漆"] --> C1["整个PCB"]
end
end
subgraph "冗余设计"
D1["双MOS并联"] --> E1["均流设计"]
F1["双电源输入"] --> G1["自动切换"]
H1["热备份电路"] --> I1["关键负载"]
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
*To request free samples, please complete and submit the following information. Our team will review your application within 24 hours and arrange shipment upon approval. Thank you!
X
SN Check
***Serial Number Lookup Prompt**
1. Enter the complete serial number, including all letters and numbers.
2. Click Submit to proceed with verification.
The system will verify the validity of the serial number and its corresponding product information to help you confirm its authenticity.
If you notice any inconsistencies or have any questions, please immediately contact our customer service team. You can also call 400-655-8788 for manual verification to ensure that the product you purchased is authentic.