graph LR
subgraph "加热驱动功率级"
A["24VDC输入"] --> B["LC输入滤波"]
B --> C["PWM控制器"]
C --> D["栅极驱动器"]
D --> E["VBGQF1302 \n 加热驱动MOSFET"]
E --> F["加热管(1500W)"]
F --> G["电流检测电阻"]
G --> H["地"]
end
subgraph "温度控制环路"
I["温度设定值"] --> J["PID控制器"]
K["温度传感器"] --> J
J --> C
L["温度反馈"] --> J
end
subgraph "保护电路"
M["过流保护"] --> N["故障锁存"]
O["过温保护"] --> N
P["电压监测"] --> N
N --> Q["关断信号"]
Q --> D
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
水泵电机驱动拓扑详图
graph TB
subgraph "三相桥式驱动"
A["24VDC输入"] --> B["预驱动电路"]
subgraph "三相半桥"
C["VBQF3638 \n U相高侧"]
D["VBQF3638 \n U相低侧"]
E["VBQF3638 \n V相高侧"]
F["VBQF3638 \n V相低侧"]
G["VBQF3638 \n W相高侧"]
H["VBQF3638 \n W相低侧"]
end
B --> C
B --> D
B --> E
B --> F
B --> G
B --> H
C --> I["U相输出"]
D --> J["U相返回"]
E --> K["V相输出"]
F --> L["V相返回"]
G --> M["W相输出"]
H --> N["W相返回"]
I --> O["BLDC电机"]
K --> O
M --> O
J --> P["地"]
L --> P
N --> P
end
subgraph "FOC控制算法"
Q["主控MCU"] --> R["SVPWM生成"]
S["位置传感器"] --> T["Clarke/Park变换"]
T --> U["PI控制器"]
U --> R
V["电流采样"] --> T
end
R --> B
subgraph "压力控制"
W["压力设定值"] --> X["压力PID"]
Y["压力传感器"] --> X
X --> U
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "逻辑负载开关通道"
A["MCU GPIO"] --> B["电平匹配"]
B --> C["VBC6N2022输入"]
subgraph C["VBC6N2022 双N-MOS共漏"]
direction LR
IN1[栅极1]
IN2[栅极2]
S1[源极1]
S2[源极2]
D1[漏极1共接]
D2[漏极2共接]
end
D1 --> E["12V电源输入"]
D2 --> E
S1 --> F["负载1 \n 流量计"]
S2 --> G["负载2 \n 压力传感器"]
F --> H["地"]
G --> H
subgraph "电流检测与保护"
I["检测电阻"] --> J["比较器"]
J --> K["故障指示"]
K --> L["MCU中断"]
end
H --> I
end
subgraph "辅助负载控制"
M["MCU GPIO"] --> N["驱动电路"]
N --> O["VBG3638"]
O --> P["电磁阀"]
Q["12V电源"] --> O
P --> R["地"]
S["MCU GPIO"] --> T["驱动电路"]
T --> U["VB8658负压控制"]
U --> V["蒸汽阀/负压泵"]
W["负电源"] --> U
V --> X["地"]
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style O fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
热管理与保护拓扑详图
graph TB
subgraph "三级散热系统"
A["一级:主动散热"] --> B["加热驱动MOSFET区域"]
C["散热片/散热孔"] --> D["PCB背面铜箔"]
E["热界面材料"] --> F["外部散热器"]
G["二级:PCB散热"] --> H["水泵驱动MOSFET区域"]
I["2oz铜箔"] --> J["内部地层"]
K["热过孔阵列"] --> L["热量扩散"]
M["三级:自然对流"] --> N["逻辑控制MOSFET区域"]
O["空气对流"] --> P["环境散热"]
end
subgraph "温度监测网络"
Q["NTC温度传感器1"] --> R["锅炉温度"]
S["NTC温度传感器2"] --> T["功率板温度"]
U["NTC温度传感器3"] --> V["散热器温度"]
R --> W["MCU ADC"]
T --> W
V --> W
end
subgraph "热控制策略"
W --> X["温度监控算法"]
Y["温度阈值"] --> Z["PID控制"]
X --> Z
Z --> AA["风扇PWM控制"]
Z --> BB["加热功率调节"]
AA --> CC["冷却风扇"]
BB --> DD["加热管占空比"]
end
subgraph "电气保护网络"
EE["RCD缓冲电路"] --> FF["加热管驱动"]
GG["RC吸收电路"] --> HH["水泵电机驱动"]
II["TVS阵列"] --> JJ["栅极驱动芯片"]
KK["续流二极管"] --> LL["电磁阀线圈"]
MM["电流检测"] --> NN["过流保护"]
NN --> OO["快速关断"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC6N2022规格书
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