graph LR
subgraph "三相逆变桥(单关节)"
A["低压直流母线 \n 24V/48VDC"] --> B["U相桥臂"]
A --> C["V相桥臂"]
A --> D["W相桥臂"]
subgraph B ["U相桥臂"]
direction TB
UH["高侧开关"]
UL["VBE1302 \n 低侧开关"]
end
subgraph C ["V相桥臂"]
direction TB
VH["高侧开关"]
VL["VBE1302 \n 低侧开关"]
end
subgraph D ["W相桥臂"]
direction TB
WH["高侧开关"]
WL["VBE1302 \n 低侧开关"]
end
UL --> E["U相输出"]
VL --> F["V相输出"]
WL --> G["W相输出"]
E --> H["伺服电机 \n U相绕组"]
F --> I["伺服电机 \n V相绕组"]
G --> J["伺服电机 \n W相绕组"]
K["伺服驱动芯片"] --> L["栅极驱动器"]
L --> UL
L --> VL
L --> WL
M["电流检测"] --> K
N["编码器反馈"] --> O["位置/速度环"]
O --> K
end
subgraph "保护与驱动电路"
P["去饱和检测(DESAT)"] --> Q["高速比较器"]
R["过流检测"] --> Q
Q --> S["故障锁存"]
S --> T["关断信号"]
T --> L
U["PWM控制"] --> V["死区时间控制"]
V --> L
end
style UL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style VL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style WL fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
主电源PFC拓扑详图
graph TB
subgraph "三相PFC功率级"
A["工业380VAC \n 三相输入"] --> B["EMI滤波器"]
B --> C["三相整流桥"]
C --> D["PFC升压电感"]
D --> E["PFC开关节点"]
E --> F["VBM17R20SE \n PFC开关管"]
F --> G["高压直流母线 \n ~540VDC"]
H["PFC控制器"] --> I["隔离型栅极驱动器"]
I --> F
G --> J["电压反馈"]
J --> H
K["电流检测"] --> H
end
subgraph "DC-DC降压级"
G --> L["LLC谐振变换器"]
L --> M["高频变压器"]
M --> N["同步整流"]
N --> O["低压直流母线 \n 24V/48VDC"]
P["LLC控制器"] --> Q["驱动电路"]
Q --> L
O --> R["电流/电压反馈"]
R --> P
end
subgraph "保护电路"
S["MOV阵列"] --> A
T["TVS保护"] --> G
U["RC缓冲电路"] --> F
V["栅极保护"] --> I
W["过压/欠压保护"] --> H
X["过温保护"] --> H
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
安全制动与电源管理拓扑详图
graph LR
subgraph "安全制动H桥控制"
A["低压直流母线"] --> B["VBA5206 \n 双N+P MOSFET"]
subgraph B ["VBA5206内部结构"]
direction LR
IN1["栅极1(N)"]
IN2["栅极2(P)"]
S1["源极1"]
S2["源极2"]
D1["漏极1(N)"]
D2["漏极2(P)"]
end
D1 --> C["制动器线圈+"]
D2 --> D["制动器线圈-"]
E["安全控制器"] --> F["电平转换/驱动"]
F --> IN1
F --> IN2
G["制动状态反馈"] --> E
H["制动电流检测"] --> I["过流保护"]
I --> E
end
subgraph "传感器电源管理"
J["MCU GPIO"] --> K["VBA5206 \n 电源开关"]
subgraph K ["VBA5206开关通道"]
direction TB
IN_SW["栅极输入"]
D_SW["漏极输入(12V/24V)"]
S_SW["源极输出"]
end
D_SW --> L["传感器阵列"]
S_SW --> L
M["电流检测"] --> N["故障诊断"]
N --> J
O["温度监测"] --> J
end
subgraph "紧急安全回路"
P["安全光幕"] --> Q["安全继电器"]
R["急停按钮"] --> Q
S["碰撞检测"] --> Q
Q --> T["安全关断信号"]
T --> E
T --> U["伺服驱动关断"]
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBE1302规格书
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