graph TB
subgraph "Buck變換器(降壓)"
A["寬壓輸入 \n 12-36VDC"] --> B["輸入濾波電容"]
B --> C["VBGM1101N \n 主開關管"]
C --> D["續流二極體/ \n 同步整流管"]
D --> E["輸出電感"]
E --> F["輸出濾波電容"]
F --> G["5V/12V輸出"]
H["Buck控制器"] --> I["柵極驅動器"]
I --> C
G -->|電壓回饋| H
A -->|電流檢測| H
end
subgraph "Boost變換器(升壓)"
J["寬壓輸入 \n 12-36VDC"] --> K["輸入濾波電容"]
K --> L["升壓電感"]
L --> M["VBGM1101N \n 主開關管"]
M --> N["輸出二極體/ \n 同步整流管"]
N --> O["輸出濾波電容"]
O --> P["24V/36V輸出"]
Q["Boost控制器"] --> R["柵極驅動器"]
R --> M
P -->|電壓回饋| Q
J -->|電流檢測| Q
end
subgraph "熱管理設計"
S["一級:散熱器"] --> C
S --> M
T["二級:PCB敷銅"] --> I
T --> R
U["三級:自然對流"] --> H
U --> Q
V["溫度感測器"] --> W["MCU熱管理"]
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style M fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
多路負載智能配電拓撲詳圖
graph LR
subgraph "負載開關通道1-3"
A["配電匯流排5V"] --> B["VBJ1322 \n 負載開關1"]
C["配電匯流排12V"] --> D["VBJ1322 \n 負載開關2"]
E["配電匯流排24V"] --> F["VBJ1322 \n 負載開關3"]
B --> G["溫濕度感測器 \n 5V/100mA"]
D --> H["通信模組 \n 12V/500mA"]
F --> I["加熱器 \n 24V/2A"]
J["MCU GPIO1"] --> K["電平轉換"]
K --> L["柵極驅動1"]
L --> B
M["MCU GPIO2"] --> N["電平轉換"]
N --> O["柵極驅動2"]
O --> D
P["MCU GPIO3"] --> Q["電平轉換"]
Q --> R["柵極驅動3"]
R --> F
end
subgraph "負載開關通道4-5"
S["配電匯流排5V"] --> T["VBJ1322 \n 負載開關4"]
U["配電匯流排12V"] --> V["VBJ1322 \n 負載開關5"]
T --> W["GPS模組 \n 5V/50mA"]
V --> X["數據採集器 \n 12V/300mA"]
Y["MCU GPIO4"] --> Z["電平轉換"]
Z --> AA["柵極驅動4"]
AA --> T
AB["MCU GPIO5"] --> AC["電平轉換"]
AC --> AD["柵極驅動5"]
AD --> V
end
subgraph "保護電路"
AE["續流二極體"] --> G
AF["續流二極體"] --> H
AG["續流二極體"] --> I
AH["磁珠濾波"] --> W
AI["π型濾波"] --> X
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
AC-DC隔離前級拓撲詳圖
graph TB
subgraph "輸入保護與濾波"
A["85-265VAC輸入"] --> B["保險絲"]
B --> C["壓敏電阻"]
C --> D["氣體放電管"]
D --> E["共模電感"]
E --> F["X電容"]
F --> G["整流橋"]
G --> H["高壓直流母線 \n ~400VDC"]
end
subgraph "反激變換功率級"
H --> I["直流母線電容"]
I --> J["VBM165R13S \n 主開關管"]
J --> K["反激變壓器 \n 初級"]
K --> L["RCD吸收電路"]
L --> J
M["反激控制器"] --> N["隔離驅動器 \n Si8235"]
N --> J
K --> O["反激變壓器 \n 次級"]
O --> P["整流二極體"]
P --> Q["輸出濾波"]
Q --> R["直流輸出 \n 12-24VDC"]
R --> S["電池充電管理"]
end
subgraph "浪湧與過壓保護"
T["雷擊感應浪湧"] --> U["多級防護: \n 1.氣體放電管 \n 2.壓敏電阻 \n 3.TVS"]
U --> V["保護地"]
W["電網波動"] --> X["輸入過壓保護"]
X --> Y["保護控制器"]
Y --> Z["關斷信號"]
Z --> M
end
subgraph "熱設計與隔離"
AA["散熱器"] --> J
AB["安全間距 \n 8mm"] --> AC["初級側"]
AB --> AD["次級側"]
AE["隔離電壓 \n 3000VAC"] --> AF["變壓器"]
AE --> AG["光耦回饋"]
end
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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