DA20KM33A 是一款 AC/DC 開關電源變換器，采用的諧振調頻技術，效率高、

功率大、體積小、工作可靠，充電方式采用恒功率與恒壓狀態自動轉換，有效地節省了充電時

間，具有有源功率因數校正對電網，輸入和輸出電壓范圍寬，采用 CAN2.0B 通信協議，

具有智能充電功能，具有智能監測故障告警保護功能；同時內置 28V 獨立輔助電源，用于汽車

電池管理系統供電。該款電源專為新能源汽車高壓電池充電而設計,與國際汽車電源廠商

同步，各項性能指標已達到或超越國際同行水平，運行時間更長。該系列電源也可

適用于需要恒壓、恒流電源的各個領域。

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 產品特點：

a. 恒功率與恒壓狀態自動轉換，有效節省充電時間

b. 有源功率因數校正≥0.99

c. 輸入過欠壓保護

d. 輸出過欠壓保護

e. 輸出過流保護

f. 輸出防反接保護

g. 過溫保護

h. CAN通訊智能故障告警、保護功能

i. 內置28V獨立輔助電源，用于汽車電池管理系統供電

j. 適用于汽車多種安裝方式

1.2 冷卻和安裝

本電源采用強制液冷設計，使用時注意液體溫度及流量，以利于散熱。

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 automobiles

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.