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:
May. 22, 2018
Filed:
Nov. 19, 2015
Upi Semiconductor Corp., Hsinchu County, TW;
Ya-Ran Xue, Hsinchu County, TW;
Heng-Li Lin, Hsinchu County, TW;
uPI Semiconductor Corp., Hsinchu County, TW;
Abstract
A power control circuit and a power control method for an electronic cigarette are provided. The power control method includes the following steps: detecting a sensing temperature of a heating wire; when the sensing temperature is lower than a preset temperature, providing a first switch signal according to a ramp signal and an input signal, and adjusting an operation current of the electronic cigarette according to the first switch signal; and when the sensing temperature is higher than the preset temperature, providing a second switch signal, and adjusting the operation current of the electronic cigarette according to the second switch signal, wherein an on-time of the second switch signal is less than an on-time of the first switch signal. The invention controls the temperature of the electronic cigarette by adjusting the on-time so as to avoid overheating.