Title:
LIGHT-EMITTING ELEMENT DRIVE DEVICE, AND LIGHT EMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/075591
Kind Code:
A1
Abstract:
A light-emitting element drive device (201) is equipped with an overcurrent detection unit (6) which is configured so as to detect an overcurrent of the current flowing to light-emitting element units (41-44) of one or more channels, and so as to be capable of connecting to one or more current detection resistors (R1) provided between the positive electrodes of the light-emitting element units and an end for application of a power supply voltage (Vout) for driving said light-emitting element units.
Inventors:
KATSURA KOJI (JP)
KANEMITSU RYOSUKE (JP)
KANEMITSU RYOSUKE (JP)
Application Number:
PCT/JP2023/034912
Publication Date:
April 11, 2024
Filing Date:
September 26, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H05B47/25; H05B45/345; H05B45/38; H05B45/50; H05B47/14
Domestic Patent References:
| WO2021106360A1 | 2021-06-03 |
Foreign References:
| JP2017195150A | 2017-10-26 | |||
| JP2016122643A | 2016-07-07 | |||
| JP2014003770A | 2014-01-09 | |||
| JP2018019498A | 2018-02-01 | |||
| JP2018014310A | 2018-01-25 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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