| 摘要 |
<p>The present invention relates to a contact-less switch, more specifically, to a contact-less switch including a button which is placed at a point of a housing, works upon external pressure, and has a magnetic body on one end; a magnetic field sensor device which is contained by the housing, faces the magnetic body, and generates inducing voltage according to the distance between the magnetic field sensor device and the magnetic body; and a semiconductor device which runs on the inducing voltage generated by the magnetic field sensor device and switches power supplied by a separate battery to a separate load. Therefore, the contact-less switch according to the present invention can improve durability compared to the conventional switches with the connection type structure and eliminate noise generated when operating the switch, by realizing the contact-less structure using magnetic field sensor device and the semiconductor device.</p> |
