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电源频率
[电] mains frequency
[电] supply frequency
[电] supply frequency
- 采用锁相技术能产生与电源频率锁定的倍频脉冲。
The phase-lock technique is used to generate multiple frequency pulse, which follows the power frequency. - 因此它可以把“两倍于电源频率的直流电”进行“平滑化处理”，成为一个接近恒定的直流电。
Therefore it can be seen that it will "smooth" the "twice mains frequency DC" into a near constant DC voltage. - 交流供电的源通常具有很高电平的电源频率共模电压（常常有几伏）。
An AC powered source usually has a significant level (often several volts) of line frequency common mode voltage.
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