graph TB
subgraph "加热器功率控制通道"
A["直流母线 \n 48VDC"] --> B["输入滤波电容"]
B --> C["VBQF1104N \n 源极"]
C --> D["加热器负载 \n 电阻性"]
D --> E["电流检测电阻"]
E --> F["系统地"]
G["PWM信号 \n 来自PLC"] --> H["栅极驱动器"]
H --> I["VBQF1104N \n 栅极"]
J["温度传感器"] --> K["PID温度控制器"]
K --> G
end
subgraph "保护与散热设计"
L["TVS管"] --> A
M["RCD缓冲电路"] --> C
N["PCB敷铜散热面"] --> C
O["温度检测NTC"] --> C
P["散热器"] --> N
end
subgraph "工作模式切换"
Q["模式选择"] --> R["固态继电器模式 \n 100%开关"]
Q --> S["PWM调功模式 \n 0-100%调节"]
R --> G
S --> G
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
泵阀与物料传输驱动拓扑详图
graph LR
subgraph "直流电机H桥驱动通道"
A["24VDC电源"] --> B["VBI3638通道1 \n 高侧开关"]
B --> C["电机正端"]
D["VBI3638通道2 \n 低侧开关"] --> E["电机负端"]
F["VBI3638通道3 \n 高侧开关"] --> C
G["VBI3638通道4 \n 低侧开关"] --> E
C --> H["直流电机 \n 计量泵"]
H --> E
I["电机驱动器IC"] --> B
I --> D
I --> F
I --> G
end
subgraph "电磁阀驱动通道"
J["24VDC电源"] --> K["VBI3638通道5 \n 开关控制"]
K --> L["电磁阀线圈"]
L --> M["续流二极管"]
M --> N["系统地"]
O["PLC输出"] --> P["电平转换"]
P --> Q["VBI3638通道5 \n 栅极"]
end
subgraph "保护电路"
R["RC吸收电路"] --> B
S["过流检测"] --> H
T["堵转保护"] --> I
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助与安全系统供电拓扑详图
graph TB
subgraph "高侧电源开关控制"
A["12V辅助电源"] --> B["VBTA2610N \n 漏极"]
B --> C["VBTA2610N \n 源极"]
C --> D["负载电源输出"]
E["控制信号 \n 3.3V/5V"] --> F["电平转换NPN"]
F --> G["VBTA2610N \n 栅极"]
H["上拉电阻"] --> G
end
subgraph "传感器电源管理"
I["传感器电源开关"] --> J["VBTA2610N通道1"]
J --> K["温度传感器阵列"]
J --> L["压力传感器阵列"]
J --> M["流量传感器阵列"]
K --> N["模拟输入 \n PLC"]
L --> N
M --> N
end
subgraph "安全联锁控制"
O["安全输入1 \n 门禁开关"] --> P["光耦隔离"]
O["安全输入2 \n 压力超限"] --> P
O["安全输入3 \n 温度超限"] --> P
P --> Q["VBTA2610N通道2"]
Q --> R["紧急停机继电器"]
R --> S["主接触器线圈"]
end
subgraph "状态反馈"
T["电源状态检测"] --> U["故障指示灯"]
V["电流检测"] --> W["过载报警"]
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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