About: http://webisa.webdatacommons.org/418045000

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	As a method for reducing the noise, there is a method in which a motor driving current is made sinusoidal by means of so-called PWM (Pulse Width Modulation) control.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com