反激式开关变压器和反馈控制回路设计，以及考虑电磁兼容性对电路的改进，是其关键技术。
The design of flyback switching transformer and feedback control loop and the improvement of the circuit for considering electromagnetic compatibility are the critical technologies.
通过对电容器充电回路开关管进行控制，实现交流输入端的高功率因数。
High power factor at ac input can be achieved by controlling the switch of capacitor charge circuit.
介绍了一个8控制回路的组合开关，从外形结构和功能结构上，给出了其模块化的设计过程。
A combined switches with 8 control circuits is presented and its modularized design process is offered from figure configuration and function structure.
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