Title:
LIGHT-EMITTING ELEMENT DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/075473
Kind Code:
A1
Abstract:
This light-emitting element drive device (1) comprises: an input terminal (ADIM terminal); a smoothing circuit (4); a frequency monitor circuit (3) configured to switch whether an input signal (Din) inputted by the input terminal is inputted to the smoothing circuit or bypasses the output of the smoothing circuit in accordance with whether the frequency of the input signal is higher than a prescribed frequency threshold value; and a current driver (9) configured to generate, on the basis of the output from the smoothing circuit, a light-emitting element current (ILED) to be channeled to a light-emitting element (10).
Inventors:
SUYAMA MAKOTO (JP)
Application Number:
PCT/JP2023/033178
Publication Date:
April 11, 2024
Filing Date:
September 12, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H01L33/00; H05B45/10; H05B45/345
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
Download PDF: