graph LR
subgraph "三相无刷电机驱动桥"
A["24VDC输入"] --> B["预驱动电路"]
B --> C["高边驱动"]
B --> D["低边驱动"]
subgraph "全桥MOSFET阵列"
Q_H1["VBL7402 \n 高边1"]
Q_H2["VBL7402 \n 高边2"]
Q_H3["VBL7402 \n 高边3"]
Q_L1["VBL7402 \n 低边1"]
Q_L2["VBL7402 \n 低边2"]
Q_L3["VBL7402 \n 低边3"]
end
C --> Q_H1
C --> Q_H2
C --> Q_H3
D --> Q_L1
D --> Q_L2
D --> Q_L3
Q_H1 --> E["U相输出"]
Q_H2 --> F["V相输出"]
Q_H3 --> G["W相输出"]
Q_L1 --> H["功率地"]
Q_L2 --> H
Q_L3 --> H
E --> I["无刷电机 \n U相"]
F --> J["无刷电机 \n V相"]
G --> K["无刷电机 \n W相"]
end
subgraph "电流检测与保护"
L["电流采样电阻"] --> M["差分放大器"]
M --> N["高速比较器"]
N --> O["过流保护"]
O --> P["故障锁存"]
P --> Q["驱动关断"]
Q --> C
Q --> D
end
subgraph "位置检测与闭环控制"
R["霍尔传感器"] --> S["位置解码"]
T["编码器接口"] --> U["速度计算"]
S --> V["FOC控制算法"]
U --> V
V --> B
end
style Q_H1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_L1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电气保护与热管理拓扑详图
graph TB
subgraph "三级热管理系统"
A["一级散热:液冷/强制风冷"] --> B["电机驱动MOSFET"]
C["二级散热:PCB敷铜+散热片"] --> D["输入保护MOSFET"]
E["三级散热:自然对流"] --> F["负载开关芯片"]
G["温度传感器网络"] --> H["MCU温度监控"]
H --> I["PWM风扇控制"]
H --> J["液冷泵控制"]
H --> K["功率降额管理"]
I --> L["冷却风扇"]
J --> M["液冷循环泵"]
end
subgraph "电气保护网络"
N["输入级保护"] --> O["MOV防浪涌"]
N --> P["气体放电管"]
N --> Q["自恢复保险丝"]
R["驱动级保护"] --> S["RC缓冲网络"]
R --> T["TVS瞬态抑制"]
R --> U["续流二极管"]
V["监控级保护"] --> W["过流检测<5μs"]
V --> X["过温检测"]
V --> Y["堵转检测"]
W --> Z["快速关断信号"]
X --> Z
Y --> Z
Z --> B
Z --> D
end
subgraph "故障诊断与预测维护"
AA["电流谐波分析"] --> AB["齿轮磨损预测"]
AC["导通压降监测"] --> AD["MOSFET健康度"]
AE["运行次数统计"] --> AF["维护周期预测"]
AB --> AG["MCU数据分析"]
AD --> AG
AF --> AG
AG --> AH["预警输出"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "P-MOSFET高端负载开关"
A["MCU控制信号"] --> B["电平转换电路"]
B --> C["栅极驱动器"]
C --> D["VBE2101M \n P-MOSFET"]
E["24V辅助电源"] --> F["输入滤波"]
F --> G["漏极端"]
D --> G
H["源极端"] --> I["负载输出"]
subgraph "负载类型"
J["照明LED"]
K["声光报警器"]
L["通信模块"]
M["安全传感器"]
end
I --> J
I --> K
I --> L
I --> M
end
subgraph "负载状态监控"
N["电流检测电路"] --> O["ADC采样"]
P["电压检测电路"] --> Q["比较器"]
O --> R["MCU负载监控"]
Q --> S["故障检测"]
S --> T["自动关断"]
T --> C
end
subgraph "负载优先级管理"
U["核心负载"] --> V["电机驱动电源"]
W["重要负载"] --> X["通信与安全"]
Y["可选负载"] --> Z["照明与显示"]
AA["负载调度算法"] --> AB["MCU负载管理"]
AB --> V
AB --> X
AB --> Z
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
点击下载：VBL7402规格书
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