高频感应元件电气特性和测量方法第2部分:直流-直流变换器用电感的额定电流

[中文适用范围]： 本部分IEC 62024规定了小电感额定直流电流限制值的测量方法。确定额定值的标准化测量方法使用户能够准确比较不同制造商数据手册中给出的电流额定值。本文件适用于符合IEC 62025-1尺寸标准的引脚式和表面贴装式电感，其额定电流通常小于22 A，尽管存在额定电流大于22 A但符合本文件尺寸限制（ footprint 约不大于12 mm × 12 mm）的电感。这些电感通常用于安装在印刷电路板（PCB）上的直流 - 直流转换器、电气和电信设备以及小型开关电源单元。测量方法由仅由直流电流引起的饱和和温升限制定义。 [外文原描述]： IEC 62024-2:2020 specifies the measuring methods of the rated direct current limits for small inductors. Standardized measuring methods for the determination of ratings enable users to accurately compare the current ratings given in various manufacturers’ data books. This document is applicable to leaded and surface mount inductors with dimensions according to IEC 62025-1 and generally with rated current less than 22 A, although inductors with rated current greater than 22 A are available that fall within the dimension restrictions of this document (no larger than a 12 mm x 12 mm footprint approximately). These inductors are typically used in DC-to-DC converters built on PCBs, for electric and telecommunication equipment, and small size switching power supply units. The measuring methods are defined by the saturation and temperature rise limitations induced solely by direct current. This edition includes the following significant technical changes with respect to the previous edition: - addition of Table 2 and Figure 2 b).