Input frequency

In power circuits and similar systems, this refers to the frequency of the alternating voltage applied to the input terminals. When inductors and capacitors are included in the power circuit, the input frequency becomes an important factor in determining the output. Therefore, it is necessary to apply voltage with a frequency that lies within the rated range of the power circuit. If the frequency of the input voltage deviates from the specified value, it may cause malfunctions or failures in the power circuit or connected loads, so caution is required. Additionally, if a large amount of high-frequency noise, in addition to the fundamental sine wave, is present, it can also lead to malfunctions or failure, so caution is required.