It is common for the direct current circuit to be interfered by alternatingcurrentvoltage.
直流回路受到交流电压干扰，是控制回路中容易产生的现象。
2
Step down transformers provide low voltage AC power for lighting, instruments and other circuits that use alternatingcurrent at a lower voltage.
降压变压器低压AC电源提供照明，仪器仪表和其他使用交流电在一个较低的电压的电路。
3
In the application of above 24V fort currentvoltage grade control circuit, Voltage Alternating and resonant wave interference of input model for Programmable Logic Controllers must be resolved.