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:
Dec. 30, 2014
Filed:
Aug. 11, 2011
Shang-i Liu, Kaohsiung, TW;
Shang-I Liu, Kaohsiung, TW;
Novatek Microelectronics Corp., Hsinchu, TW;
Abstract
A charge pump including an output terminal, an external capacitor, and a switch module is provided. The output terminal is coupled to an internal capacitor disposed inside an integrated circuit (IC). The external capacitor is disposed outside the IC. The switch module, coupled to the external capacitor and the internal capacitor configured to control the external capacitor and the internal capacitor to charge and discharge by turns. In a first operating period, the switch module controls the external capacitor to charge without providing current to the output terminal, and controls the internal capacitor to discharge to the output terminal.