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:
Feb. 17, 2009
Filed:
Apr. 04, 2007
Jong-tae Hwang, Seoul, KR;
Moon-sang Jung, Seoul, KR;
Dong-hwan Kim, Bucheon-si, KR;
Jin-sung Kim, Seoul, KR;
Jong-Tae Hwang, Seoul, KR;
Moon-Sang Jung, Seoul, KR;
Dong-Hwan Kim, Bucheon-si, KR;
Jin-Sung Kim, Seoul, KR;
Fairchild Korea Semiconductor, Ltd., Bucheon-Si, KR;
Abstract
A resonant inverter includes a first driver and a second driver for driving a first and second switching devices, respectively, a dead time generator for generating a first drive signal and a second drive signal respectively, a current-controlled oscillator for supplying, to the dead time generator, an output clock having a frequency determined based on a first current input to the current-controlled oscillator, and a current mirror for supplying the first current to the current-controlled oscillator in an amount proportional to a second current flowing through an external resistor. The current mirror includes a track/hold circuit, to supply the second current in an amount equal to an amount of the second current supplied before a variation in the amount of the second current, during a transition of an output signal between the first and second switching devices.