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:
Nov. 12, 2024
Filed:
Feb. 19, 2021
Inspur Suzhou Intelligent Technology Co., Ltd., Jiangsu, CN;
Kai Yang, Jiangsu, CN;
INSPUR SUZHOU INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu, CN;
Abstract
A voltage pump circuit and method for supporting power-down data protection. The circuit includes: a first capacitor connected to a voltage source; a second capacitor connected to the first capacitor by a second metal oxide semiconductor (MOS); a boost chopper connected to the voltage source and the first capacitor and connected to the second capacitor by a first MOS; a buck chopper connected to the second capacitor and a hard disk; a logic chip connected to the voltage source, the first MOS and the second MOS, where the logic chip is configured to control on or off of the first MOS and the second MOS according to voltage information of the voltage source to realize normal power supply to the hard disk for a normal voltage source, and to prolong power supply time to the hard disk for an abnormal and closed voltage source to save cache data.