graph TB
subgraph "变频压缩机驱动"
A["直流母线540VDC"] --> B["三相逆变桥"]
subgraph "功率器件配置"
C["VBP115MR04 \n 1500V/4A \n (钳位保护)"]
D["VBPB165R47S \n 650V/47A \n (主开关并联)"]
end
B --> C
B --> D
C --> E["压缩机U相"]
D --> E
F["PWM控制器"] --> G["栅极驱动器"]
G --> C
G --> D
H["电流传感器"] --> I["过流保护"]
I --> J["故障锁存"]
J --> K["驱动关断"]
K --> G
end
subgraph "保护电路细节"
L["RCD吸收电路"] --> M["VBP115MR04 CE极"]
N["RC缓冲网络"] --> O["VBPB165R47S DS极"]
P["NTC温度传感器"] --> Q["结温监测"]
Q --> R["过温降载控制"]
S["电压尖峰检测"] --> T["过压保护"]
T --> K
end
subgraph "AI优化控制"
U["AI算法"] --> V["PWM频率自适应"]
U --> W["死区时间优化"]
V --> F
W --> F
X["效率点追踪"] --> Y["负载匹配"]
Y --> F
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
风机驱动与FOC控制拓扑详图
graph LR
subgraph "FOC矢量控制风机驱动"
A["直流母线540VDC"] --> B["三相逆变器"]
B --> C["VBPB165R47S \n 650V/47A/TO-3P"]
C --> D["风机电机(U相)"]
E["FOC控制器"] --> F["SVPWM调制"]
F --> G["栅极驱动器"]
G --> C
H["位置传感器"] --> I["Clark/Park变换"]
I --> J["PI调节器"]
J --> F
K["电流采样"] --> L["电流环"]
L --> J
end
subgraph "高效率优化"
M["超结多外延技术"] --> N["Rds(on)=50mΩ"]
N --> O["导通损耗降低95%"]
P["开关特性优化"] --> Q["dv/dt控制"]
Q --> R["EMI降低"]
S["热设计优化"] --> T["壳温<42℃"]
end
subgraph "静音精准控制"
U["毫秒级转速调节"] --> V["风量无级调整"]
W["FOC平滑控制"] --> X["运行噪音<30dB(A)"]
Y["AI风量算法"] --> Z["舒适度优化"]
Z --> E
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
三级热管理与负载管理拓扑详图
graph TB
subgraph "三级热管理架构"
A["一级: 强制散热"] --> B["压缩机驱动模块"]
B --> C["散热器/冷媒冷却"]
C --> D["目标壳温<80℃"]
E["二级: 主动散热"] --> F["风机驱动MOSFET"]
F --> G["独立散热风道"]
G --> H["目标温升<50℃"]
I["三级: 自然散热"] --> J["VBA3695负载开关"]
J --> K["PCB敷铜散热"]
K --> L["目标温升<30℃"]
M["温度传感器网络"] --> N["MCU热管理"]
N --> O["风扇PWM控制"]
N --> P["泵速调节"]
O --> Q["冷却风扇"]
P --> R["液冷泵"]
end
subgraph "智能负载管理场景"
S["快速制冷模式"] --> T["开启:压缩机+高速风机"]
S --> U["开启:四通阀+膨胀阀"]
V["夜间静音模式"] --> W["低转速风机优化"]
V --> X["关闭:非必要负载"]
Y["轻负载模式"] --> Z["关闭:部分室内风机"]
Y --> AA["转入:待机状态"]
AB["AI决策逻辑"] --> AC["能效/舒适度/寿命平衡"]
AC --> MCU
end
subgraph "VBA3695双路控制"
AD["MCU GPIO"] --> AE["电平转换"]
AE --> AF["VBA3695输入"]
subgraph AF ["VBA3695双N-MOS结构"]
direction LR
AG["栅极1"]
AH["栅极2"]
AI["源极1"]
AJ["源极2"]
AK["漏极1"]
AL["漏极2"]
end
AM["12V辅助电源"] --> AK
AM --> AL
AI --> AN["负载1(继电器)"]
AJ --> AO["负载2(电磁阀)"]
AN --> AP["地"]
AO --> AP
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style VBA3695 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBP115MR04规格书
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