1.产品简介/Product introduction

DE3KS21A 是我公司专门为纯电动汽车量身打造的一款大功率、小体积 DC/DC

变换器。变换器具有超宽的输入范围，可工作在输入电压 200Vdc 至 950Vdc 之间，解决了不

同车型需选用多种 DC 变换器的困扰，避免重复设计，达到通用化、模块化的目的；采用数

字化处理技术，自带 CAN 通讯，能够向 CAN 总线上报数据，同时接受 CAN 总线的开关机

命令，可实时控制和监测 DC 变换器工作状态。与国际一流汽车电源厂商完全同步，各项性

能指标已达到或超越国际同行水平，无故障运行时间更长。该系列电源也可适用于需要恒压、

恒流电源的各个领域。

DE3KS21A is a high-power, small-volume DC/DC converter specially designed for

pure electric vehicles . The converter has wide input voltage range and of 200Vdc to 750Vdc,

solved the problem of choosing multiple DC converters for different vehicle type, avoiding repeated

design and achieving the purpose of generalization and modularization;It adopts digital processing

technology, with CAN communication, able to report data to CAN bus and accept power on

command of CAN bus at the same time, monitoring the working status of DCDC converter in real

time. Synchronizing with the world-class automobile manufacturers, the performance indicators

have reached and even exceeded the international peer level, with longer fault free operation time,

can be also applied to field needing constant voltage and constant current field.

输出电压：14Vdc & 28Vdc & 48Vdc

Output Voltage

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

报通讯故障不关机，CAN 通讯恢复正常后，取消报通

讯故障。

does not shut down when it reports communication failure.

After CAN communication returns to normal, the

communication failure report will be canceled.

工作环境温度： -30℃～+60℃

Working

贮存温度  -40℃~+105℃

Storage

工作湿度 5％～85％RH（不冷凝） (Non-condensing)

Working

冷却方式：水冷/Water Cooling

Cooling Method

IP防护等级：IP67

IP Protection Grade

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, mobile energy storage vehicles,

 AGVs, photovoltaic and other energy storage and power exchange equipment.