自耦调压变压器变通使用的转换电路

• 作 者: 王绍华
• 出 处: 电子制作
• 发表日期: 1996年07期
• 关键词: 转换电路 双刀 最大工作电流 自耦变压器 电子爱好者 接线端子 电子设备 输出电压 压敏电阻 端所

一般电子爱好者都备有自耦变压器。市电过低时需要用它来升压,在维修或调试电子设备时,需要用它来降压。这就需要经常改动接线端子,使用中颇感不便。笔者只需加一只双刀双掷开关,就能解决这一问题,电路见附图。K为所加双刀双掷开关(电流要大于变压器最大工作电流)。

General electronic enthusiasts are equipped with auto-transformers. It needs to be boosted when the utility power is too low, and it needs to be used to reduce the voltage when repairing or debugging the electronic equipment. This requires frequent changes to the terminals, the use of quite inconvenient. The author just need to add a double pole double throw switch, can solve this problem, the circuit sees a picture. K for the added double-pole double-throw switch (current is greater than the maximum operating current transformer).