electronic transformer

例句：

1. 1. The electronic transformer is used to convert AC into DC power.
   电子变压器用于将交流电转换为直流电。
2. 2.The electronic transformer is essential for the operation of many electrical devices.
   电子变压器对于许多电气设备的运行至关重要。
3. 3. The electronic transformer was designed to improve efficiency and reduce noise in the power system.
   电子变压器被设计用来提高系统效率并减少噪音。