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. 15, 2011
Filed:
Jan. 22, 2009
Ke-horng Chen, Taipei County, TW;
Chun-yu Hsieh, Taichung, TW;
Shih-meng Chang, Taipei County, TW;
Chia-lin Liu, Tai-Chung Hsien, TW;
Chi-neng MO, Tao-Yuan Hsien, TW;
Ke-Horng Chen, Taipei County, TW;
Chun-Yu Hsieh, Taichung, TW;
Shih-Meng Chang, Taipei County, TW;
Chia-Lin Liu, Tai-Chung Hsien, TW;
Chi-Neng Mo, Tao-Yuan Hsien, TW;
Chunghwa Picture Tubes, Ltd., Bade, Taoyuan, TW;
Abstract
A power supply device is disclosed in the present invention, which includes a DC-DC boost converter and a charge recycling circuit. The DC-DC boost converter is utilized for boosting an input voltage to generate an output voltage, and adjusting a voltage level of the output voltage according to a level switching signal. The charge recycling circuit is electrically connected to the DC-DC boost converter, and is utilized for generating a current path according to the level switching signal to recycle redundant charges from the DC-DC boost converter when the output voltage is switched from high to low and to return stored charges back to the DC-DC boost converter when the output voltage is switched from low to high, so as to accelerate voltage switching of the output voltage and to reduce power consumption of the DC-DC boost converter.