graph LR
subgraph "隔离反激变换器"
A["高压直流输入 \n 200-500VDC"] --> B["输入滤波电容"]
B --> C["VBM165R25SE \n 初级开关管"]
C --> D["高频变压器 \n 初级绕组"]
D --> E["RCD吸收网络"]
E --> F["初级地"]
G["PWM控制器"] --> H["隔离驱动器"]
H --> C
subgraph "次级侧"
I["变压器次级"] --> J["整流二极管"]
J --> K["输出滤波"]
K --> L["隔离输出 \n 12V/5V"]
end
D --> I
L --> M["反馈光耦"]
M --> G
end
subgraph "保护电路"
N["输入TVS"] --> A
O["栅极TVS"] --> C
P["电流检测"] --> Q["过流保护"]
Q --> R["关断信号"]
R --> G
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电池采样通道切换拓扑详图
graph TB
subgraph "电池电压采样网络"
A["电池堆正极"] --> B["分压电阻网络"]
subgraph "电池单体"
BAT1["单体电池1"]
BAT2["单体电池2"]
BAT3["单体电池3"]
BAT4["单体电池4"]
end
B --> BAT1
BAT1 --> BAT2
BAT2 --> BAT3
BAT3 --> BAT4
BAT4 --> C["电池堆负极"]
end
subgraph "多路选择开关矩阵"
D["通道选择逻辑"] --> E["电平转换器"]
E --> F["VBA8338 \n 通道1开关"]
E --> G["VBA8338 \n 通道2开关"]
E --> H["VBA8338 \n 通道3开关"]
E --> I["VBA8338 \n 通道4开关"]
F --> J["采样保持电路"]
G --> J
H --> J
I --> J
J --> K["高精度ADC"]
K --> L["MCU数据处理"]
end
subgraph "保护与滤波"
M["RC低通滤波"] --> F
N["ESD保护"] --> K
O["参考电压源"] --> K
end
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
通信接口控制拓扑详图
graph LR
subgraph "通信接口电源管理"
A["MCU控制信号"] --> B["隔离驱动器"]
B --> C["VBM1303 \n 电源开关"]
C --> D["通信模块电源 \n 12V/24V"]
D --> E["RS-485收发器"]
D --> F["CAN收发器"]
E --> G["RS-485总线"]
F --> H["CAN总线"]
I["电源监控IC"] --> J["故障指示"]
J --> A
end
subgraph "辅助负载驱动"
K["MCU PWM输出"] --> L["电平转换"]
L --> M["VBM1303 \n 风扇驱动"]
L --> N["VBM1303 \n 加热器驱动"]
L --> O["VBM1303 \n 告警驱动"]
M --> P["散热风扇"]
N --> Q["加热元件"]
O --> R["告警蜂鸣器"]
subgraph "保护电路"
S["续流二极管"] --> M
T["过流检测"] --> U["保护电路"]
U --> K
end
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style M fill:#fff3e0,stroke:#ff9800,stroke-width:2px
*To request free samples, please complete and submit the following information. Our team will review your application within 24 hours and arrange shipment upon approval. Thank you!
X
SN Check
***Serial Number Lookup Prompt**
1. Enter the complete serial number, including all letters and numbers.
2. Click Submit to proceed with verification.
The system will verify the validity of the serial number and its corresponding product information to help you confirm its authenticity.
If you notice any inconsistencies or have any questions, please immediately contact our customer service team. You can also call 400-655-8788 for manual verification to ensure that the product you purchased is authentic.