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. 21, 2024
Filed:
Jan. 17, 2023
Delta Electronics, Inc., Taoyuan, TW;
Ching-Ho Chou, Taoyuan, TW;
Yung-Chuan Lu, Taoyuan, TW;
DELTA ELECTRONICS, INC., Taoyuan, TW;
Abstract
A LED power supply with bi-level dimming receives an input voltage to supply power to an LED lamp, and adjusts the brightness of the LED lamp according to whether an external detection switch is triggered to be turned on. The LED power supply includes a conversion circuit, a switch, and an oscillation circuit. The conversion circuit converts the input voltage into an output voltage, and provides the output voltage to supply power to the LED lamp so as to control the LED lamp to provide a first brightness. The oscillation circuit provides a dimming signal with a fixed frequency and a duty cycle to the switch when the external detection switch is turned on so as to turn on and turn off the switch. The switch correspondingly adjusts the output voltage according to the dimming signal to control the LED lamp to provide a second brightness.