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:
Apr. 30, 2019
Filed:
Jul. 31, 2017
New Power Plasma Co., Ltd., Gyeonggi-do, KR;
Research & Business Foundation Sungkyunkwan University, Gyeonggi-do, KR;
Won Yong Sung, Gyeonggi-do, KR;
Keun Wan Koo, Gyeonggi-do, KR;
Byoung Kuk Lee, Gyeonggi-do, KR;
Seung Hee Ryu, Gyeonggi-do, KR;
Chang Seob Lim, Gyeonggi-do, KR;
Hong Kweon Moon, Gyeonggi-do, KR;
NEW POWER PLASMA CO., LTD., Gyeonggi-Do, KR;
Abstract
A power supply apparatus able to control an output current for maintaining plasma in a plasma generator includes: a switching power supply including a rectifier, an inverter, and a phase shifter; a plasma source connected to the switching power supply and generating the plasma in the plasma generator; a resonance network connected between the switching power supply and the plasma source and including a resonance inductor connected to a primary winding in series and a resonance capacitor connected to the plasma source in parallel and connected to the resonance inductor in series; and a control unit controlling the switching power supply in order to phase-shift a voltage and a current provided to the resonance network.