graph LR
subgraph "三相/單相輸入級"
A["交流輸入 \n 85-305VAC"] --> B["EMI濾波器"]
B --> C["整流橋"]
C --> D["直流母線電容"]
D --> E["PFC電感"]
E --> F["PFC開關節點"]
end
subgraph "高壓開關與保護"
F --> G["VBL18R17SE \n 800V/17A"]
G --> H["高壓直流輸出 \n 400VDC"]
I["PFC控制器"] --> J["柵極驅動器"]
J --> G
subgraph "保護電路"
K["RCD鉗位電路"]
L["輸入浪湧保護"]
M["過壓檢測"]
end
K --> G
L --> C
M --> H
H -->|電壓回饋| I
end
subgraph "PCB散熱設計"
N["TO-263封裝"] --> O["PCB正面銅箔"]
O --> P["熱過孔陣列"]
P --> Q["底層散熱銅層"]
Q --> R["輔助散熱片"]
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC-DC變換與同步整流拓撲詳圖
graph TB
subgraph "LLC諧振變換級"
A["高壓直流輸入 \n 400VDC"] --> B["LLC諧振腔"]
B --> C["高頻變壓器初級"]
C --> D["LLC開關節點"]
D --> E["初級側開關管"]
E --> F["初級地"]
G["LLC控制器"] --> H["隔離驅動器"]
H --> E
end
subgraph "同步整流級"
I["變壓器次級"] --> J["同步整流節點"]
J --> K["VBGP1801 \n 80V/350A"]
K --> L["輸出濾波電感"]
L --> M["輸出電容"]
M --> N["中間直流母線 \n 48VDC"]
O["同步整流控制器"] --> P["大電流驅動器"]
P --> K
N -->|電壓回饋| O
end
subgraph "強制散熱系統"
Q["大面積散熱器"] --> K
R["溫度感測器"] --> S["MCU"]
S --> T["風扇PWM控制"]
T --> U["冷卻風扇"]
U --> Q
end
subgraph "驅動與保護"
V["自適應死區控制"] --> O
W["直通防止電路"] --> P
X["過流保護"] --> K
end
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能輸出管理拓撲詳圖
graph LR
subgraph "智能安全開關通道"
A["中間直流母線 \n 48VDC"] --> B["輸出開關節點"]
B --> C["VBQF1206 \n 20V/58A"]
C --> D["充電輸出 \n 200-500VDC"]
D --> E["電動車電池"]
end
subgraph "控制與驅動"
F["MCU GPIO"] --> G["電平轉換電路"]
G --> H["開關驅動器"]
H --> C
subgraph "電流檢測與保護"
I["高精度電流採樣"]
J["快速比較器"]
K["故障鎖存器"]
end
I --> J
J --> K
K --> L["關斷信號"]
L --> H
end
subgraph "安全功能"
M["軟啟動控制"] --> F
N["插拔火花抑制"] --> C
O["負載診斷"] --> I
P["短路保護"] --> K
end
subgraph "PCB熱管理"
Q["DFN8封裝"] --> R["大面積敷銅"]
R --> S["熱焊盤"]
S --> T["過孔散熱"]
T --> U["底層銅層"]
end
subgraph "通信介面"
V["CAN收發器"] --> F
W["WiFi模組"] --> F
X["藍牙模組"] --> F
Y["計量晶片"] --> F
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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