graph LR
subgraph "DC-DC降壓轉換級"
A["24V DC輸入"] --> B["輸入濾波電容"]
B --> C["VBI1101MF \n 主開關管"]
C --> D["開關節點"]
D --> E["降壓電感"]
E --> F["輸出電容"]
F --> G["5V/12V輸出"]
H["PWM控制器"] --> I["柵極驅動器"]
I --> C
G -->|電壓回饋| H
D --> J["續流二極體"]
J --> K["初級地"]
end
subgraph "初級側保護電路"
L["輸入TVS管"] --> A
M["柵極RC吸收"] --> C
N["源極電流檢測"] --> C
N --> O["過流保護電路"]
O --> H
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
LED驅動與精密調光拓撲詳圖
graph TB
subgraph "恒流驅動與高頻PWM調光"
A["12V輸入"] --> B["恒流驅動器IC"]
B --> C["驅動輸出"]
C --> D["VBGQF1305 \n 低側開關"]
D --> E["電流檢測電阻"]
E --> F["LED+"]
F --> G["LED陣列"]
G --> H["LED-"]
H --> I["驅動地"]
J["MCU PWM"] --> K["調光介面"]
K --> B
E --> L["電流回饋"]
L --> B
end
subgraph "多路LED配置"
subgraph "主照明通道"
M["暖白LED串 \n 2700K"]
N["冷白LED串 \n 5000K"]
end
subgraph "氛圍照明"
O["RGB LED \n 多通道"]
end
F --> M
F --> N
F --> O
M --> P["獨立電流設置"]
N --> Q["獨立電流設置"]
O --> R["RGB控制器"]
end
subgraph "熱管理與保護"
S["NTC溫度感測器"] --> T["溫度監控IC"]
T --> B
U["過溫保護"] --> B
V["過流保護"] --> B
W["開路保護"] --> B
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
智能負載管理拓撲詳圖
graph LR
subgraph "雙路智能開關通道"
A["MCU GPIO \n 3.3V"] --> B["電平匹配"]
B --> C["VBK362K \n 通道1柵極"]
C --> D["VBK362K \n 通道1漏極"]
E["5V感測器電源"] --> D
D --> F["感測器VCC"]
F --> G["環境光感測器"]
F --> H["接近感測器"]
G --> I["感測器地"]
H --> I
end
subgraph "多路負載管理應用"
subgraph "無線模組電源管理"
J["MCU GPIO2"] --> K["VBK362K \n Wi-Fi開關"]
L["3.3V電源"] --> K
K --> M["Wi-Fi模組 \n ESP32"]
end
subgraph "散熱控制"
N["MCU GPIO3"] --> O["VBK362K \n 風扇開關"]
P["5V風扇電源"] --> O
O --> Q["微型風扇"]
end
subgraph "用戶介面電源"
R["MCU GPIO4"] --> S["VBK362K \n 觸摸電路開關"]
T["3.3V介面電源"] --> S
S --> U["電容觸摸IC"]
end
end
subgraph "保護與ESD防護"
V["柵極TVS"] --> C
W["電源線TVS"] --> F
X["限流電阻"] --> G
X --> H
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style O fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style S fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
熱管理與保護拓撲詳圖
graph TB
subgraph "三級溫度監控網路"
A["一級: LED驅動熱監測"] --> B["NTC感測器貼裝於 \n VBGQF1305附近"]
C["二級: 電源轉換熱監測"] --> D["NTC感測器貼裝於 \n VBI1101MF附近"]
E["三級: 環境溫度監測"] --> F["環境NTC感測器 \n 燈體內部"]
B --> G["溫度採集ADC"]
D --> G
F --> G
G --> H["MCU溫度管理演算法"]
end
subgraph "自適應散熱控制"
H --> I["溫度閾值判斷"]
I --> J["PWM風扇控制"]
I --> K["LED電流降額"]
I --> L["過溫保護關斷"]
J --> M["風扇驅動電路"]
M --> N["散熱風扇"]
K --> O["調光控制器"]
L --> P["功率開關關斷信號"]
P --> Q["VBI1101MF"]
P --> R["VBGQF1305"]
end
subgraph "電氣保護網路"
S["輸入過壓保護"] --> T["TVS+保險絲"]
U["輸出過流保護"] --> V["電流檢測+比較器"]
W["LED開路保護"] --> X["電壓檢測電路"]
Y["ESD防護陣列"] --> Z["所有外部介面"]
end
style Q fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style R fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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