graph LR
subgraph "即热式加热控制"
A["12VDC母线"] --> B["输入滤波电容"]
B --> C["加热器开关节点"]
C --> D["VBQF1202 \n MOSFET"]
D --> E["即热式加热管"]
E --> F["水流通道"]
G["温度传感器NTC"] --> H["温度检测电路"]
H --> I["MCU控制器"]
I --> J["PWM驱动器"]
J --> D
F -->|水温反馈| G
end
subgraph "保护电路"
K["TVS保护管"] --> C
L["电流采样电阻"] --> M["电流检测IC"]
M --> I
N["大容量电解电容"] --> C
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
水泵与阀驱动拓扑详图
graph TB
subgraph "水泵驱动通道"
A["12VDC电源"] --> B["VBC2311 P-MOSFET"]
B --> C["直流水泵"]
C --> D["地"]
E["MCU PWM"] --> F["电平转换"]
F --> G["驱动电路"]
G --> B
H["续流二极管"] --> C
end
subgraph "电磁阀驱动通道"
I["12VDC电源"] --> J["VBC2311 P-MOSFET"]
J --> K["电磁阀线圈"]
K --> L["地"]
M["MCU控制信号"] --> N["驱动电路"]
N --> J
O["续流二极管"] --> K
end
subgraph "多路独立控制"
P["臀洗阀控制"] --> J
Q["妇洗阀控制"] --> R["VBC2311 P-MOSFET"]
R --> S["第二电磁阀"]
S --> L
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
座圈加热管理拓扑详图
graph LR
subgraph "座圈加热控制环路"
A["12VDC电源"] --> B["VB2290A P-MOSFET"]
B --> C["座圈加热丝"]
C --> D["地"]
E["座圈NTC传感器"] --> F["温度检测电路"]
F --> G["MCU控制器"]
G --> H["PID控制算法"]
H --> I["驱动电路"]
I --> B
end
subgraph "安全保护"
J["过温保护阈值"] --> G
K["人体感应信号"] --> G
L["待机控制信号"] --> G
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护电路拓扑详图
graph TB
subgraph "三级热管理系统"
A["一级: 传导散热"] --> B["即热MOSFET (VBQF1202)"]
C["二级: 分散通风"] --> D["水泵驱动MOSFET (VBC2311)"]
E["三级: PCB敷铜"] --> F["座圈开关MOSFET (VB2290A)"]
G["温度传感器阵列"] --> H["MCU热管理模块"]
H --> I["散热策略控制"]
end
subgraph "电气保护网络"
J["RCD漏电保护"] --> K["AC输入端"]
L["TVS阵列"] --> M["功率器件端口"]
N["RC缓冲电路"] --> O["感性负载开关"]
P["电流检测电路"] --> Q["过流保护"]
R["温度监测"] --> S["过温保护"]
Q --> T["故障锁存"]
S --> T
T --> U["系统关断"]
end
subgraph "安规与隔离"
V["功率板"] --> W["电气隔离"]
W --> X["用户接触部分"]
Y["爬电距离设计"] --> Z["符合IEC60335"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC2311规格书
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