DA20KM33A 是一款 AC/DC 开关电源变换器，采用的谐振调频技术，效率高、

功率大、体积小、工作可靠，充电方式采用恒功率与恒压状态自动转换，有效地节省了充电时

间，具有有源功率因数校正对电网，输入和输出电压范围宽，采用 CAN2.0B 通信协议，

具有智能充电功能，具有智能监测故障告警保护功能；同时内置 28V 独立辅助电源，用于汽车

电池管理系统供电。该款电源专为新能源汽车高压电池充电而设计,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。

DA20KM33A is an AC/DC switch power converter that adopts advanced resonant frequency modulation technology, featuring high efficiency, high power output, compact size, and reliable operation. The charging process is carried out through automatic conversion between constant power and constant voltage states, effectively reducing charging time. It has active power factor correction, resulting in zero pollution to the power grid. The input and output voltage ranges are wide, and it uses the CAN2.0B communication protocol. It has inte

1.1 产品特点：

a. 恒功率与恒压状态自动转换，有效节省充电时间

b. 有源功率因数校正≥0.99

c. 输入过欠压保护

d. 输出过欠压保护

e. 输出过流保护

f. 输出防反接保护

g. 过温保护

h. CAN通讯智能故障告警、保护功能

i. 内置28V独立辅助电源，用于汽车电池管理系统供电

j. 适用于汽车多种安装方式

1.2 冷却和安装

本电源采用强制液冷设计，使用时注意液体温度及流量，以利于散热。

1.1 Product Features:

a. Automatic transition between constant power and constant voltage, effectively saving charging time.

b. Active power factor correction ≥0.99

c. Input over/under voltage protection

d. Output over/under voltage protection

e. Output overcurrent protection

f. Output reverse connection protection

g. Over-temperature protection

h. CAN communication intelligent fault monitoring and protection functions

i. Built-in 28V independent auxiliary power supply for automotive battery management system

j. Suitable for various installation methods in autos

1.2 Cooling and Installation:

This power supply adopts forced liquid cooling design. When using, pay attention to the liquid temperature and flow rate to facilitate heat dissipation.