graph LR
subgraph "HV-LV DCDC转换器"
A["高压直流母线 \n 300-450VDC"] --> B["输入滤波"]
B --> C["隔离型DCDC拓扑"]
C --> D["VBP16R20SFD \n 主开关管"]
D --> E["高频变压器"]
E --> F["同步整流级"]
F --> G["输出滤波"]
G --> H["24V/12V低压输出"]
I["DCDC控制器"] --> J["隔离驱动器"]
J --> D
H -->|电压反馈| I
end
subgraph "空调压缩机三相逆变"
K["高压直流母线"] --> L["三相逆变桥"]
subgraph L ["三相桥臂"]
direction TB
PHASE_U["U相: VBP16R20SFD"]
PHASE_V["V相: VBP16R20SFD"]
PHASE_W["W相: VBP16R20SFD"]
end
PHASE_U --> M["压缩机电机U"]
PHASE_V --> N["压缩机电机V"]
PHASE_W --> O["压缩机电机W"]
P["压缩机控制器"] --> Q["三相隔离驱动器"]
Q --> PHASE_U
Q --> PHASE_V
Q --> PHASE_W
end
subgraph "保护与缓冲"
R["RC缓冲电路"] --> D
S["栅极TVS阵列"] --> D
T["过流检测"] --> I
U["温度传感器"] --> P
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style PHASE_U fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
低压大电流负载驱动拓扑详图
graph TB
subgraph "电动转向泵H桥驱动"
A["24V低压母线"] --> B["输入电容阵列"]
B --> C["H桥驱动电路"]
subgraph C ["H桥功率级"]
direction LR
Q1["VBL1103 \n 高侧左"]
Q2["VBL1103 \n 低侧左"]
Q3["VBL1103 \n 高侧右"]
Q4["VBL1103 \n 低侧右"]
end
Q1 --> D["转向泵电机+"]
Q2 --> E["转向泵电机-"]
Q3 --> D
Q4 --> E
F["转向控制器"] --> G["H桥预驱动器"]
G --> Q1
G --> Q2
G --> Q3
G --> Q4
end
subgraph "气泵电机驱动"
H["24V低压母线"] --> I["Buck驱动电路"]
I --> J["VBL1103 \n 主开关管"]
J --> K["输出滤波"]
K --> L["气泵电机"]
M["气泵控制器"] --> N["大电流驱动器"]
N --> J
end
subgraph "辅助DCDC同步整流"
O["变压器次级"] --> P["同步整流节点"]
P --> Q["VBL1103 \n 同步整流管"]
Q --> R["输出滤波电感"]
R --> S["输出电容"]
S --> T["辅助电源输出"]
U["同步整流控制器"] --> V["负压驱动器"]
V --> Q
end
subgraph "保护电路"
W["电流采样电阻"] --> X["比较器"]
X --> Y["故障锁存"]
Y --> Z["关断信号"]
Z --> G
Z --> N
AA["熔断器"] --> A
BB["续流二极管"] --> J
end
style Q1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载开关管理拓扑详图
graph LR
subgraph "双路智能负载开关通道"
A["BCM GPIO"] --> B["电平转换电路"]
B --> C["VBQA3316输入"]
subgraph C ["VBQA3316 双N-MOS"]
direction LR
IN1["栅极1"]
IN2["栅极2"]
S1["源极1"]
S2["源极2"]
D1["漏极1"]
D2["漏极2"]
end
VCC_12V["12V电源"] --> D1
VCC_12V --> D2
S1 --> E["负载1(左照明)"]
S2 --> F["负载2(右照明)"]
E --> G[地]
F --> G
end
subgraph "传感器电源管理"
H["BCM GPIO"] --> I["VBQA3316通道1"]
J["12V电源"] --> K["VBQA3316输入"]
subgraph K ["VBQA3316"]
direction TB
IN3["栅极"]
S3["源极"]
D3["漏极"]
end
L["传感器电源总线"] --> D3
S3 --> M["传感器网络"]
N["电流检测"] --> O["过流保护"]
O --> P["关断信号"]
P --> IN3
end
subgraph "USB充电端口控制"
Q["BCM GPIO"] --> R["VBQA3316通道1"]
S["5V电源"] --> T["VBQA3316输入"]
subgraph T ["VBQA3316"]
direction TB
IN4["栅极"]
S4["源极"]
D4["漏极"]
end
U["USB电源总线"] --> D4
S4 --> V["USB端口组"]
end
subgraph "诊断与保护"
W["负载电流检测"] --> X["ADC"]
X --> Y["BCM诊断"]
Z["开路/短路检测"] --> AA["故障标志"]
AA --> Y
BB["热关断"] --> CC["保护电路"]
CC --> IN1
CC --> IN3
CC --> IN4
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style T fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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