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:
Sep. 18, 2007
Filed:
Sep. 09, 2005
Jae-wook Jung, Hwaseong-si, KR;
Jae-wook Jung, Hwaseong-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A horizontal deflection circuit having a horizontal output transistor that receives an input horizontal driving signal and drives a horizontal deflection coil includes a current controlling unit to selectively perform an operation to decrease a base current applied to a base terminal of the horizontal output transistor, and a controlling unit to sense a frequency of the horizontal driving signal and to enable the operation of the current controlling unit when the sensed frequency of the horizontal driving signal is higher than a predetermined level. Accordingly, the horizontal deflection circuit can control the base current of the horizontal output transistor according to a frequency mode, thereby decreasing damage to the horizontal output transistor.