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:
Oct. 27, 2020
Filed:
May. 24, 2019
Newpowerplasma Co., Ltd., Pyoungtak-si, Gyeonggi-do, KR;
NEWPOWERPLASMA CO., LTD., Pyoungtak-si, Gyeonggi-do, KR;
Abstract
Disclosed herein is an RF generator that includes an inverter including first and second switching elements controlled by a PWM control signal and converting a DC voltage having a predetermined level outputted from the DC/DC converter into an AC voltage having a predetermined level, an LC filter that outputs a sine wave resonance signal having a predetermined resonance frequency from a high frequency signal, a transformer that induces a high frequency power signal of a pulse waveform outputted from the LC filter to a secondary side, an ignition module that sets a switching frequency at the termination of an ignition mode as an ignition mode escape frequency, an operation module that applies the ignition mode escape frequency as an initial value of a switching frequency in an operation mode, and a signal controller that generates the PWM control signal by using the switching frequency.