graph LR
subgraph "三相变频风机驱动"
A["24V/48V直流输入"] --> B["预驱动芯片"]
B --> C["VBGQF1810 \n 上桥臂"]
B --> D["VBGQF1810 \n 下桥臂"]
C --> E["U相输出"]
D --> F["电机公共端"]
B --> G["VBGQF1810 \n 上桥臂"]
B --> H["VBGQF1810 \n 下桥臂"]
G --> I["V相输出"]
H --> F
B --> J["VBGQF1810 \n 上桥臂"]
B --> K["VBGQF1810 \n 下桥臂"]
J --> L["W相输出"]
K --> F
E --> M["三相风机电机"]
I --> M
L --> M
N["PWM控制器"] --> B
O["电流采样"] --> N
end
subgraph "散热与保护"
P["大面积敷铜 \n >150mm²"] --> C
P --> G
P --> J
Q["散热过孔阵列"] --> P
R["散热器/外壳"] --> Q
S["过流检测"] --> T["比较器"]
T --> U["故障锁存"]
U --> V["关断信号"]
V --> B
W["吸收电容"] --> X["电机端"]
Y["共模电感"] --> X
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style J fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电子膨胀阀控制拓扑详图
graph TB
subgraph "H桥驱动电路"
A["12V/24V电源"] --> B["VBC6N2022 \n 桥臂A"]
A --> C["VBC6N2022 \n 桥臂B"]
subgraph B ["VBC6N2022 双N-MOS"]
direction LR
BA["栅极A1"]
BB["栅极A2"]
BC["漏极A1/A2"]
BD["源极A1"]
BE["源极A2"]
end
subgraph C ["VBC6N2022 双N-MOS"]
direction LR
CA["栅极B1"]
CB["栅极B2"]
CC["漏极B1/B2"]
CD["源极B1"]
CE["源极B2"]
end
BC --> D["电机正端"]
CC --> E["电机负端"]
BD --> F["地"]
BE --> F
CD --> F
CE --> F
G["MCU GPIO"] --> H["电平转换"]
H --> BA
H --> BB
H --> CA
H --> CB
end
subgraph "控制与保护"
I["步进脉冲"] --> J["死区时间控制"]
J --> G
K["对称敷铜 \n >50mm²"] --> B
K --> C
L["栅极电阻 \n 10-47Ω"] --> BA
L --> CA
M["续流二极管"] --> D
M --> E
N["RC吸收电路"] --> D
N --> E
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与传感器开关拓扑详图
graph LR
subgraph "多路传感器电源管理"
A["5V辅助电源"] --> B["VBK162K \n 通道1"]
A --> C["VBK162K \n 通道2"]
A --> D["VBK162K \n 通道3"]
subgraph B ["VBK162K SC70-3"]
direction LR
BA["栅极"]
BB["漏极"]
BC["源极"]
end
subgraph C ["VBK162K SC70-3"]
direction LR
CA["栅极"]
CB["漏极"]
CC["源极"]
end
subgraph D ["VBK162K SC70-3"]
direction LR
DA["栅极"]
DB["漏极"]
DC["源极"]
end
BB --> E["温度传感器"]
CB --> F["湿度传感器"]
DB --> G["显示背光"]
BC --> H["地"]
CC --> H
DC --> H
I["MCU GPIO1"] --> BA
J["MCU GPIO2"] --> CA
K["MCU GPIO3"] --> DA
end
subgraph "驱动与保护电路"
L["栅极电阻 \n ≤100Ω"] --> BA
M["RC滤波网络"] --> I
M --> L
N["续流二极管"] --> E
O["ESD保护"] --> BA
P["电源滤波"] --> A
end
subgraph "低功耗待机管理"
Q["AI睡眠模式"] --> R["关断所有非必要负载"]
R --> I
R --> J
R --> K
S["动态功耗监测"] --> T["功耗优化算法"]
T --> Q
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBC6N2022规格书
中文
English
