The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
Dec. 28, 1995
Applicant:
Inventor:
Tae Woo Kim, Kyungsangnam-Do, KR;
Assignee:
LG Electronics Inc., , KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219721 ; 219716 ; 219722 ; 363 49 ;
Abstract
In a relay driving apparatus and method for a microwave oven, a high relay driving voltage is applied at an initial relay driving time to reduce the operating time deviation between relay parts and the high relay driving voltage is lowered to a normal relay driving voltage through a damp resistance if contact points of a relay switch are coupled, thereby implementing a fix crossing. Therefore, rush current is minimized during relay operation, thereby preventing the fixation of the contact points of a relay switch and the generation of noises due to vibration.