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. 01, 2022
Filed:
Feb. 02, 2019
Opple Lighting Co., Ltd., Shanghai, CN;
Wei Wen, Shanghai, CN;
Opple Lighting Co., Ltd., Shanghai, CN;
Abstract
The present disclosure provides a timer based protection circuit and a lighting device. The protection circuit is configured to acquire a working current or an output voltage of a protected object, and compare a voltage value converted from a current value of the working current or a voltage value of the acquired output voltage with a predetermined threshold. When the voltage value converted from the current value of the working current or the voltage value of the acquired output voltage is greater than or equal to the predetermined threshold, the protection circuit resets the timer to cause the timer to output a low voltage level; and when the voltage value converted from the current value of the working current or the voltage value of the acquired output voltage is less than the predetermined threshold, the timer works normally.