graph TB
subgraph "高压加热控制回路"
A["三相380VAC输入"] --> B["三相整流桥 \n ~530VDC输出"]
B --> C["高压直流母线"]
C --> D["VBP16R90S \n 600V/90A TO247"]
D --> E["加热管负载 \n 数千瓦功率"]
E --> F["功率地"]
G["PID温度控制器"] --> H["隔离栅极驱动器"]
H --> D
I["温度传感器"] --> G
E -->|热负载| I
end
subgraph "驱动与保护电路"
J["PWM信号"] --> H
K["直流母线电压采样"] --> L["过压比较器"]
L --> M["故障保护"]
M -->|关断| H
N["RCD缓冲电路"] --> D
O["栅极TVS阵列"] --> H
P["电流检测电阻"] --> Q["电流比较器"]
Q --> M
end
subgraph "热管理系统"
R["TO247散热器"] --> D
S["NTC温度传感器"] --> T["热管理MCU"]
T --> U["风扇控制PWM"]
U --> V["强制风冷风扇"]
V --> R
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电机与阀门驱动拓扑详图
graph LR
subgraph "H桥电机驱动电路"
A["24V/36V工业总线"] --> B["H桥左上开关"]
A --> C["H桥右上开关"]
D["H桥左下开关"] --> E["电机负载"]
F["H桥右下开关"] --> E
E --> G["电机地"]
B -->|PWM控制| E
C -->|方向控制| E
D --> G
F --> G
end
subgraph "MOSFET开关阵列"
B --> H["VBMB1302 \n 30V/180A TO220F"]
C --> I["VBMB1302 \n 30V/180A TO220F"]
D --> J["VBMB1302 \n 30V/180A TO220F"]
F --> K["VBMB1302 \n 30V/180A TO220F"]
end
subgraph "驱动控制电路"
L["电机控制器"] --> M["半桥驱动器1"]
L --> N["半桥驱动器2"]
M --> H
M --> J
N --> I
N --> K
O["栅极串联电阻"] --> H
P["栅极下拉电阻"] --> H
end
subgraph "保护与续流"
Q["RC吸收电路"] --> H
R["续流二极管"] --> E
S["电流采样"] --> T["过流保护"]
T -->|故障信号| L
end
subgraph "散热设计"
U["TO220F散热片"] --> H
U --> I
U --> J
U --> K
V["温度传感器"] --> W["热监控"]
end
style H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与负载管理拓扑详图
graph TB
subgraph "控制电源架构"
A["24V工业总线"] --> B["DC-DC降压模块"]
B --> C["12V控制电源"]
C --> D["LDO稳压器"]
D --> E["5V/3.3V数字电源"]
end
subgraph "智能负载开关网络"
E --> F["主控MCU GPIO"]
F --> G["VBA1210负载开关1 \n 20V/13A SOP8"]
F --> H["VBA1210负载开关2 \n 20V/13A SOP8"]
F --> I["VBA1210负载开关3 \n 20V/13A SOP8"]
G --> J["温度传感器阵列"]
H --> K["压力传感器组"]
I --> L["流量计模块"]
J --> M["模拟信号调理"]
K --> M
L --> M
M --> N["ADC输入"]
N --> F
end
subgraph "通信与接口"
E --> O["RS485收发器"]
E --> P["CAN总线控制器"]
E --> Q["以太网PHY"]
O --> R["现场仪表"]
P --> S["执行机构"]
Q --> T["工业交换机"]
end
subgraph "保护电路"
U["输入电容"] --> B
V["输出滤波"] --> E
W["ESD保护二极管"] --> F
X["电源监控IC"] --> Y["复位电路"]
Y --> F
end
style G fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style H fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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