graph LR
subgraph "PFC升压变换器"
A["单相AC输入"] --> B["EMI滤波器"]
B --> C["整流桥"]
C --> D["PFC电感"]
D --> E["PFC开关节点"]
E --> F["VBP15R33S \n 500V/33A"]
F --> G["高压母线电容"]
H["PFC控制器"] --> I["栅极驱动器"]
I --> F
G -->|电压反馈| H
end
subgraph "三相逆变桥拓扑"
G --> J["三相逆变桥"]
subgraph J["VBP15R33S阵列"]
direction TB
U_HIGH["上桥U相"]
U_LOW["下桥U相"]
V_HIGH["上桥V相"]
V_LOW["下桥V相"]
W_HIGH["上桥W相"]
W_LOW["下桥W相"]
end
U_HIGH --> K["U相输出"]
U_LOW --> L["U相地"]
V_HIGH --> M["V相输出"]
V_LOW --> N["V相地"]
W_HIGH --> O["W相输出"]
W_LOW --> P["W相地"]
Q["MCU/FOC算法"] --> R["三相驱动器"]
R --> U_HIGH
R --> U_LOW
R --> V_HIGH
R --> V_LOW
R --> W_HIGH
R --> W_LOW
K --> S["BLDC电机"]
M --> S
O --> S
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style U_HIGH fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
直流电机驱动与负载管理拓扑详图
graph TB
subgraph "直流电机/水泵驱动"
A["12V辅助电源"] --> B["驱动控制IC"]
B --> C["VBGED1401 \n 40V/150A"]
C --> D["电机负载"]
D --> E["地"]
F["MCU PWM"] --> B
subgraph C["VBGED1401特性"]
direction LR
LOW_RDS["Rds(on)=0.7mΩ"]
LFPAK56["LFPAK56封装"]
LOW_LOSS["极低导通损耗"]
end
end
subgraph "智能负载开关通道"
G["MCU GPIO"] --> H["电平转换"]
H --> I["VBI3638输入"]
subgraph I ["VBI3638 双N-MOS"]
direction LR
IN1["栅极控制1"]
IN2["栅极控制2"]
D1["漏极1"]
D2["漏极2"]
S1["源极1"]
S2["源极2"]
end
PWR_12V["12V电源"] --> D1
PWR_12V --> D2
S1 --> J["负载1(进水阀)"]
S2 --> K["负载2(排水阀)"]
J --> L["地"]
K --> L
subgraph M["VBI3638应用优势"]
direction LR
SPACE_SAVE["节省60%面积"]
SYMMETRIC["对称引脚排列"]
INTEGRATED["双路集成"]
end
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与保护电路拓扑详图
graph LR
subgraph "三级散热系统"
A["一级: 铝散热器+风冷"] --> B["主逆变MOSFET"]
C["二级: 金属基板散热"] --> D["电机驱动MOSFET"]
E["三级: PCB敷铜散热"] --> F["控制IC"]
G["温度传感器阵列"] --> H["MCU"]
H --> I["风扇PWM控制"]
H --> J["过热保护"]
I --> K["冷却风扇"]
end
subgraph "电气保护网络"
L["MOV+GDT"] --> M["输入端口"]
N["RC缓冲电路"] --> O["逆变开关管"]
P["TVS阵列"] --> Q["电机相线"]
R["肖特基二极管"] --> S["续流回路"]
T["电流检测电路"] --> U["比较器"]
U --> V["故障锁存"]
V --> W["关断信号"]
W --> O
X["NTC传感器"] --> Y["温度监控"]
Y --> Z["降额控制"]
end
subgraph "EMC设计要点"
EMI_FILT["输入π型滤波器"]
CM_FILT["共模扼流圈"]
SHIELDING["屏蔽线/磁环"]
GROUNDING["良好接地"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style O fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
点击下载：VBGED1401规格书
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