摘  要：漏磁变压器，是指通过漏磁支路对主磁通的分流作用，而实现稳压功能的一种特种变压器。文中针对一种微波炉用漏磁变压器，详细地阐述了其利用主磁路的饱和效应及漏磁支路的非饱和特性，实现稳压的工作原理与工作条件，并在此基础上，给出了漏磁变压器的设计原则。基于电磁关系的分析，文中建立了漏磁变压器的等效电路与仿真模型。最后，通过实验验证了等效电路与仿真模型的准确性，对漏磁变压器的设计提供了有效的指导。
关键词：漏磁变压器；微波炉电源；等效电路
Abstract:  The magnetic leakage transformer is a kind of particular transformers which achieves voltage regulation function by dividing the main flux with the leakage magnetic branch. Around a basic structure of magnetic leakage transformer used in microwave oven, the paper elaborated on the regulator principle of the magnetic leakage transformer and presented its design principles. Meanwhile, the paper presented a widely applicable equivalent circuit of the magnetic flux leakage transformer and built a solving model based on the magnetic circuit method. Simulations and experiments have performed to indicate the regulator performance of magnetic leakage transformer.
Key words:  magnetic leakage transformer; microwave oven source; equivalent circuit