graph LR
subgraph "三相PFC升压级"
A["三相690VAC输入"] --> B["EMI滤波器"]
B --> C["浪涌保护网络"]
C --> D["三相整流桥"]
D --> E["PFC升压电感"]
E --> F["PFC开关节点"]
F --> G["VBP112MC30 \n SiC MOSFET"]
G --> H["高压直流母线 \n 1000VDC"]
I["SiC专用驱动器"] --> G
J["PFC控制器"] --> I
H -->|电压反馈| J
end
subgraph "驱动与保护细节"
K["隔离电源"] --> I
L["门极电阻"] --> G
M["RCD缓冲电路"] --> G
N["开尔文源极连接"] --> G
end
subgraph "监测与诊断"
O["母线电压采样"] --> J
P["输入电流采样"] --> J
Q["壳温监测NTC"] --> R["热管理MCU"]
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC-DC大电流变换拓扑详图
graph TB
subgraph "LLC谐振变换器"
A["1000VDC母线"] --> B["LLC谐振腔 \n Lr+Cr"]
B --> C["高频变压器"]
C --> D["次级整流节点"]
end
subgraph "同步整流与并联均流"
D --> E["同步整流控制点"]
subgraph "SGT MOSFET并联阵列"
F["VBGL7802 \n MOSFET1"]
G["VBGL7802 \n MOSFET2"]
H["VBGL7802 \n MOSFET3"]
I["VBGL7802 \n MOSFET4"]
end
E --> F
E --> G
E --> H
E --> I
F --> J["均流电感"]
G --> J
H --> J
I --> J
J --> K["输出滤波电容"]
K --> L["60-100VDC输出"]
end
subgraph "驱动与布局优化"
M["大电流驱动器"] --> F
M --> G
M --> H
M --> I
N["叠层母排设计"] --> F
N --> G
O["开尔文连接"] --> F
P["散热基板"] --> F
P --> G
end
subgraph "电流与温度监测"
Q["精密分流器"] --> R["电流采样ADC"]
S["NTC温度传感器"] --> T["温度监控IC"]
T --> U["过温保护"]
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
三级热管理与环境适应性拓扑详图
graph LR
subgraph "三级散热系统"
A["一级散热: 液冷系统"] --> B["铜基板散热器"]
B --> C["VBGL7802 MOSFET阵列"]
D["二级散热: 强制风冷"] --> E["大型鳍片散热器"]
E --> F["VBP112MC30 SiC MOSFET"]
G["三级散热: 自然冷却"] --> H["厚铜PCB铺铜"]
H --> I["VBA2317A控制芯片"]
end
subgraph "热管理与控制"
J["NTC传感器阵列"] --> K["温度采集MCU"]
K --> L["PWM风扇控制"]
K --> M["液冷泵控制"]
L --> N["高压差冷却风扇"]
M --> O["液冷循环泵"]
K --> P["功率降额策略"]
end
subgraph "环境适应性设计"
Q["全密封机柜"] --> R["IP65防护等级"]
S["三防漆涂层"] --> T["PCB防潮防尘"]
U["防水连接器"] --> V["电气接口"]
W["防尘滤网"] --> X["散热风道"]
Y["抗震动设计"] --> Z["机械固定点"]
end
subgraph "故障保护链"
AA["温度超限"] --> AB["一级报警"]
AC["振动超标"] --> AD["二级报警"]
AE["粉尘积聚"] --> AF["三级报警"]
AB --> AG["功率降额"]
AD --> AG
AF --> AG
AG --> AH["系统关断"]
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
保护电路与智能监测拓扑详图
graph TB
subgraph "电气保护网络"
A["输入浪涌保护"] --> B["MOV+GDT组合"]
C["开关节点保护"] --> D["RCD有源箝位"]
E["栅极驱动保护"] --> F["TVS+稳压管"]
G["输出过压保护"] --> H["比较器+锁存"]
end
subgraph "故障监测系统"
subgraph "电流监测"
I["霍尔电流传感器"] --> J["高速ADC"]
K["精密分流器"] --> J
end
subgraph "电压监测"
L["电阻分压网络"] --> M["隔离ADC"]
N["差分探头"] --> M
end
subgraph "温度监测"
O["NTC传感器"] --> P["温度采集IC"]
Q["红外测温"] --> P
end
subgraph "机械监测"
R["振动传感器"] --> S["振动分析MCU"]
T["倾斜传感器"] --> S
end
end
subgraph "智能保护逻辑"
U["监测数据"] --> V["FPGA快速保护"]
V --> W["多级保护策略"]
W --> X["轻微故障: 报警"]
W --> Y["中等故障: 降额"]
W --> Z["严重故障: 关断"]
X --> AA["远程上报"]
Y --> AA
Z --> AA
end
subgraph "预测性维护"
BB["Rds(on)监测"] --> CC["健康度评估"]
DD["Vth漂移监测"] --> CC
EE["热循环计数"] --> FF["寿命预测"]
CC --> GG["维护预警"]
FF --> GG
end
style V fill:#fce4ec,stroke:#e91e63,stroke-width:2px
点击下载：VBL15R30S规格书
中文
English
