graph LR
subgraph "三相逆变桥拓扑"
A[主功率总线] --> B["VBGMB1820 \n 上桥臂U相"]
A --> C["VBGMB1820 \n 上桥臂V相"]
A --> D["VBGMB1820 \n 上桥臂W相"]
B --> E[U相输出]
C --> F[V相输出]
D --> G[W相输出]
E --> H["VBGMB1820 \n 下桥臂U相"]
F --> I["VBGMB1820 \n 下桥臂V相"]
G --> J["VBGMB1820 \n 下桥臂W相"]
H --> K[功率地]
I --> K
J --> K
end
subgraph "栅极驱动与保护"
L[栅极驱动器] --> M["自举电路"]
M --> B
M --> C
M --> D
L --> H
L --> I
L --> J
subgraph "保护电路"
N["RC缓冲电路"]
O["电流采样电阻"]
P["温度传感器"]
end
N --> B
N --> H
O --> K
P --> B
end
subgraph "控制环路"
Q[MCU PWM输出] --> R[死区时间控制]
R --> L
S[编码器反馈] --> T[FOC算法]
T --> Q
U[电流采样] --> T
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC-DC升降压转换拓扑详图
graph TB
subgraph "四开关升降压拓扑"
A[电池输入] --> B["VBFB1206N \n 升压开关"]
A --> C["VBFB1206N \n 降压开关"]
B --> D[升降压电感]
C --> D
D --> E["VBFB1206N \n 同步整流"]
E --> F[输出滤波电容]
F --> G[辅助电源总线]
H["VBFB1206N \n 续流开关"] --> I[功率地]
D --> H
end
subgraph "控制与保护"
J[升降压控制器] --> K[栅极驱动器]
K --> B
K --> C
K --> E
K --> H
L[电压反馈] --> M[误差放大器]
M --> J
N[电流检测] --> O[过流保护]
O --> J
P[温度监控] --> J
end
subgraph "多路输出"
G --> Q[12V LDO稳压]
G --> R[5V LDO稳压]
Q --> S[12V负载]
R --> T[5V负载]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "负载开关阵列"
A[辅助电源] --> B["VBQF1104N \n 通道1"]
A --> C["VBQF1104N \n 通道2"]
A --> D["VBQF1104N \n 通道3"]
A --> E["VBQF1104N \n 通道4"]
A --> F["VBQF1104N \n 通道5"]
subgraph B ["VBQF1104N 内部结构"]
direction TB
GATE1[栅极]
DRAIN1[漏极]
SOURCE1[源极]
end
subgraph C ["VBQF1104N 内部结构"]
direction TB
GATE2[栅极]
DRAIN2[漏极]
SOURCE2[源极]
end
B --> H[座椅调节电机]
C --> I[LED照明系统]
D --> J[警示装置]
E --> K[传感器组]
F --> L[显示单元]
end
subgraph "控制与诊断"
M[MCU GPIO] --> N[电平转换]
N --> O[栅极驱动器]
O --> GATE1
O --> GATE2
P[电流检测] --> Q[故障诊断]
Q --> R[过流保护]
R --> M
S[温度监控] --> T[过热保护]
T --> M
end
subgraph "保护电路"
U[TVS保护] --> B
U --> C
V[RC吸收] --> H
V --> I
W[续流二极管] --> H
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护拓扑详图
graph TB
subgraph "三级热管理系统"
A["一级: 主动风冷"] --> B["主驱MOSFET散热器"]
B --> C["冷却风扇"]
D["温度传感器1"] --> E[风扇控制器]
E --> C
F["二级: PCB传导"] --> G["DC-DC MOSFET"]
G --> H["大面积铺铜"]
H --> I["导热过孔"]
I --> J["内部接地层"]
K["三级: 自然散热"] --> L["负载开关IC"]
L --> M["散热焊盘"]
M --> N["PCB敷铜"]
end
subgraph "电气保护网络"
O["RCD缓冲电路"] --> P["主驱上桥臂"]
Q["RC吸收电路"] --> R["主驱下桥臂"]
S["TVS阵列"] --> T["栅极驱动芯片"]
U["肖特基二极管"] --> V["同步整流管"]
W["电流采样"] --> X["比较器"]
X --> Y["故障锁存"]
Y --> Z["快速关断"]
Z --> P
Z --> R
end
subgraph "振动与环境防护"
AA["加固焊盘"] --> AB["功率器件"]
AC["厚铜箔设计"] --> AD["大电流路径"]
AE["三防漆处理"] --> AF["控制板"]
AG["灌封保护"] --> AH["DC-DC模块"]
end
subgraph "故障诊断机制"
AI["硬件过流保护"] --> AJ["响应时间<2μs"]
AK["温度监控"] --> AL["多路NTC传感器"]
AM["负载诊断"] --> AN["开路/短路检测"]
AO["堵转检测"] --> AP["电流谐波分析"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style L 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.