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. 11, 2011
Filed:
Mar. 19, 2008
Shwang-shi Bai, Tainan County, TW;
I-sheng Lin, Tainan County, TW;
Hsiu-na Hsieh, Tainan County, TW;
Shu-ming Chang, Tainan County, TW;
Shwang-Shi Bai, Tainan County, TW;
I-Sheng Lin, Tainan County, TW;
Hsiu-Na Hsieh, Tainan County, TW;
Shu-Ming Chang, Tainan County, TW;
Himax Technologies Limited, Tainan, TW;
Abstract
An inverter circuit for driving a lamp and a backlight module using the same are provided. The inverter circuit includes a signal generation module, a switching unit, a first capacitor, a transformer and a first detecting module. The signal generation module generates a pulse width modulation (PWM) signal, wherein the duty cycle of the PWM signal is controlled by a feedback signal and a sensed signal. The switching unit has a control terminal receiving the PWM signal, and has a first current terminal and a second current terminal respectively coupled to a first terminal and a second terminal of the first capacitor. The transformer generates an AC driving signal to the lamp according to a signal variation of the primary winding coupled the first current terminal of the first transistor. The first detecting module generates the sensed signal according to the flowing current of the switching unit.