基于微型变压器的电磁隔离式DC/DC转换器测试方法

摘要

基于微型变压器的电磁隔离式DC/DC转换器与传统光耦相比，在很多方面具有明显优势，因此在国内各领域的应用越来越广泛，大有全面取代之势。但其微型变压器的设计和制造技术还是一项前沿的微电子技术，在封装上，为了实现芯片输入/输出两端的高压隔离性能，都采用多片封装方式。以ADI公司的ADUM540x系列电路为例，就其重要电特性参数做测试方面的探讨，为同行业提供借鉴参考。%Compared with traditional optical coupler, magnetic isolation DC/DC converter based on microtransformer, has obvious advantages in many aspects. It tends to take the place of optical coupler. The design and manufacturing technology of the microtransformer is still at a front edge. On the packaging, multi chip packaging has been adopted to realize the high voltage isolation performance. Some important electrical parameters on ADUM540x series circuits of ADI are taken to discuss for providing some testing references.