graph LR
subgraph "主動式PFC電路"
A["交流輸入"] --> B["EMI濾波器"]
B --> C["整流橋"]
C --> D["母線電容"]
D --> E["PFC電感"]
E --> F["PFC開關節點"]
F --> G["VBP16R25SFD \n 600V/25A"]
G --> H["高壓直流輸出"]
I["PFC控制器"] --> J["柵極驅動器"]
J --> G
K["電流檢測"] --> I
L["電壓回饋"] --> I
end
subgraph "LLC諧振變換器"
H --> M["LLC諧振腔"]
M --> N["高頻變壓器"]
N --> O["次級整流"]
O --> P["輸出濾波"]
P --> Q["隔離直流輸出"]
R["LLC控制器"] --> S["半橋驅動器"]
S --> T["VBP16R25SFD \n 600V/25A"]
T --> U["初級地"]
end
subgraph "保護與吸收電路"
V["RCD緩衝"] --> G
W["RC吸收"] --> T
X["TVS陣列"] --> J
X --> S
end
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style T fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
同步降壓與電源管理拓撲詳圖
graph TB
subgraph "多相同步降壓轉換器"
A["12V/24V輸入"] --> B["輸入電容"]
B --> C["上管MOSFET"]
C --> D["開關節點"]
D --> E["VBM1400 \n 40V/409A"]
E --> F["輸出電感"]
F --> G["輸出電容"]
G --> H["核心板電源 \n 1.2V/3.3V"]
I["多相Buck控制器"] --> J["驅動器"]
J --> C
J --> E
K["電流檢測"] --> I
L["電壓回饋"] --> I
end
subgraph "負載智能管理通道"
M["MCU GPIO"] --> N["電平轉換"]
N --> O["VBA2307B \n -30V/-14A"]
P["12V輔助電源"] --> Q["保險絲"]
Q --> O
O --> R["負載(風扇/背光/USB)"]
R --> S["地"]
T["過流檢測"] --> U["比較器"]
U --> V["故障信號"]
V --> MCU["主控MCU"]
end
subgraph "散熱設計"
W["大面積PCB敷銅"] --> E
X["散熱器"] --> E
Y["溫度感測器"] --> MCU
MCU --> Z["PWM控制"]
Z --> FAN["風扇"]
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style O fill:#fff3e0,stroke:#ff9800,stroke-width:2px
熱管理與系統保護拓撲詳圖
graph LR
subgraph "三級熱管理系統"
A["一級: 獨立散熱器"] --> B["VBP16R25SFD \n PFC MOSFET"]
C["二級: PCB敷銅+散熱片"] --> D["VBM1400 \n 同步整流MOSFET"]
E["三級: PCB敷銅"] --> F["VBA2307B \n 負載開關"]
subgraph "溫度監控網路"
G["NTC感測器1"] --> H["ADC介面"]
I["NTC感測器2"] --> H
J["環境光感測器"] --> K["I2C介面"]
end
H --> MCU["主控MCU"]
MCU --> L["風扇PWM控制"]
MCU --> M["背光調光控制"]
L --> N["散熱風扇"]
M --> O["LED背光"]
end
subgraph "保護與可靠性設計"
P["輸入浪湧保護"] --> Q["MOV+TVS"]
R["過流保護"] --> S["電流檢測+比較器"]
T["過溫保護"] --> U["溫度檢測+鎖存"]
V["ESD防護"] --> W["柵極保護電路"]
X["降額設計"] --> Y["電壓/電流裕量"]
Z["故障指示"] --> LED["狀態指示燈"]
end
subgraph "EMI抑制措施"
AA["RC吸收電路"] --> B
AB["RC吸收電路"] --> D
AC["磁珠濾波"] --> F
AD["遮罩層"] --> CASE["金屬外殼"]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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