DE40KS44 是一款 DC/DC 变换器，采用的调宽技术，效率高、功率大、体积小、工作可靠。具有输入过欠压保护、输出过流保护、过温保护等功能，能够实现恒压恒流自动转换。该款电源能把高压电池电压转换为负载需要的100Vdc~750Vdc电压、以及电池充电所使用的电压，专为新能源汽车设计。 电源采用风冷设计，与国际汽车电源厂商同步，各项性能指标已达到或超越国际同行水平，运行时间更长。该系列电源也可适用于需要恒压、恒流电源的各个领域。

DE40KS44 is a DC/DC converter employing advanced pulse-width modulation technology, characterized by its high efficiency, high power, small size, and reliable performance. Featuring input overvoltage and undervoltage protection, output overcurrent protection, and overtemperature protection, it achieves constant voltage and constant current automatic conversion. This power supply can convert high voltage battery voltage into the required 100Vdc~750Vdc voltage for the load and battery charging voltage, making it specifically designed for new energy vehicles. Adopting air-cooled design, it keeps pace with the world's leading automotive power supply manufacturers. Its performance indicators have exceeded the international peer level, with longer trouble-free operation times. This series of power supplies can also be applied to various applications requiring constant voltage and constant current power supplies.

额定功率:40000W

Rated Power

输入电压范围：200V~950Vdc

Input Voltage Range

输出电压：100-750Vdc

Output Voltage

IP防护等级：IP66

IP Protection Grade

冷却方式：风冷/Air Cooling

Cooling Method

保护功能/ Protection

输出过流保护/Output Current Limited Protect

输出短路保护/Output Short Circuit Protection

输出过压保护/Output over Voltage Protect

输出欠压保护/ Output under Voltage Protect

输入过压保护/ Input over Voltage Protection

输入欠压保护/ Input under Voltage Protection

过温保护/Over Temperature Protect

CAN 通信故障/CAN Communication Fault

连续 5s 未收到指令,DC报通讯故障不关机，CAN 通讯恢复正常后，取消报通讯故障。

No commａnd receivedfor 5 consecutive seconds

does not shut down when it reports communication failure.

After CAN communication returns to normal, the

communication failure report will be canceled.

环境温度

Environmental Temperature

工作环境温度Working -30℃～+60℃

贮存温度 -40℃~+105℃

Storage

工作湿度 5％～85％RH（不冷凝） (Non-condensing)

Working

耐振动性能：3.12 in QC/T 413-2002 (other parts)

Vibration Resistance

DC直流转换器广泛应用：新能源乘用车、新能源商用车、新能源工程机械车、

新能源叉车、 新能源牵引车、 移动储能车、

AGV以及光伏和其他储能换电设备。

DC-DC converters are widely used in new energy passenger vehicles, new energy commercial vehicles, new energy construction machinery vehicles, new energy forklifts, new energy tractors, energy storage vehicles, AGVs, photovoltaic and other energy storage and power exchange equipment.