graph LR
subgraph "離線式開關電源"
A["220VAC輸入"] --> B["EMI濾波器"]
B --> C["整流橋"]
C --> D["高壓直流 \n ~310VDC"]
D --> E["高頻變壓器 \n 初級"]
E --> F["VBM18R05S \n 800V/5A"]
F --> G["初級地"]
H["PWM控制器"] --> I["隔離驅動器"]
I --> F
subgraph "次級側"
E_SEC["變壓器次級"] --> J["同步整流器"]
J --> K["輸出濾波"]
K --> L["直流輸出 \n 24V/36V"]
M["回饋光耦"] --> H
end
L -->|電壓回饋| M
end
subgraph "保護電路"
N["RCD緩衝"] --> F
O["TVS陣列"] --> I
P["過流檢測"] --> H
Q["過壓檢測"] --> H
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
熱床加熱控制拓撲詳圖
graph TB
subgraph "高側電源管理"
A["24V/36V DC輸入"] --> B["VBL2611 \n P-MOS \n -60V/-100A"]
C["MCU GPIO"] --> D["電平轉換電路"]
D --> E["柵極驅動"]
E --> B
B --> F["熱床電源節點"]
end
subgraph "PWM加熱控制"
F --> G["VBGL11515 \n N-MOS \n 150V/70A"]
H["溫控MCU"] --> I["專用驅動器"]
I --> G
G --> J["回路地"]
subgraph "電流檢測"
K["採樣電阻"] --> L["差分放大"]
L --> M["ADC輸入"]
end
J --> K
M --> H
end
subgraph "溫度回饋"
N["NTC感測器"] --> O["信號調理"]
O --> P["ADC輸入"]
P --> H
end
F --> Q["熱床負載 \n 500-1000W"]
Q --> J
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
保護與熱管理拓撲詳圖
graph LR
subgraph "三級熱管理架構"
A["一級: PCB大面積敷銅"] --> B["VBGL11515/VBL2611"]
C["二級: 外接散熱器"] --> D["VBM18R05S"]
E["三級: 系統強制風冷"] --> F["整個功率模組"]
G["溫度感測器"] --> H["MCU"]
H --> I["風扇PWM控制"]
I --> J["冷卻風扇"]
H --> K["降頻保護"]
K --> L["功率MOSFET"]
end
subgraph "多層次保護電路"
M["硬體過流保護"] --> N["比較器"]
N --> O["故障鎖存"]
O --> P["關斷信號"]
P --> Q["VBL2611"]
P --> R["VBGL11515"]
S["RCD緩衝"] --> D
T["RC吸收"] --> B
U["TVS柵極保護"] --> V["所有MOSFET柵極"]
W["電纜浪湧吸收"] --> X["熱床介面"]
Y["硬體過溫保護"] --> Z["熱繼電器"]
Z --> P
end
subgraph "智能保護"
AA["AI故障預測"] --> AB["雲平臺/本地"]
AC["運行數據記錄"] --> AD["壽命預測"]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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