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:
Jan. 06, 2026
Filed:
Jul. 03, 2024
Elite Semiconductor Microelectronics Technology Inc., Hsinchu, TW;
Isaac Y. Chen, Hsinchu, TW;
ELITE SEMICONDUCTOR MICROELECTRONICS TECHNOLOGY INC., Hsinchu, TW;
Abstract
A charge pump device includes a voltage adjustment unit, an output capacitor, a first output unit and a second output unit. The voltage adjustment unit performs voltage pumping or voltage reducing operation on a power supply voltage according to first to fourth control signals, a positive pump voltage and an negative pump voltage to generate a first voltage adjustment output and a second voltage adjustment output at a first node and a second node respectively. The output capacitor has a first output terminal and a second output terminal. When the first output unit is turned on, the first voltage adjustment output charges the output capacitor through the first output unit, so that the first output terminal generates the positive pump voltage. When the second output unit is turned on, the second voltage adjustment output charges the output capacitor through the second output unit, so that the second output terminal generates the negative pump voltage. When the first output unit is turned on, the second output unit is not turned on. When the second output unit is turned on, the first output unit is not turned on.