Title:
LIGHT EMITTING ELEMENT DRIVING DEVICE, LIGHT EMITTING DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/188973
Kind Code:
A1
Abstract:
This light emitting element driving device comprises: an error amplifier configured to output a voltage corresponding to the difference between a reference voltage and a voltage corresponding to the current flowing to a light emitting element, and to switch between operation and non-operation according to a control signal; a drive unit configured to drive, on the basis of the voltage output from the error amplifier, a switching element of a voltage supply unit configured to supply a voltage to the light emitting element; and a suppression unit configured to suppress a rise in the voltage output from the error amplifier when the error amplifier switches from non-operation to operation.
Inventors:
TAKAGI RYO (JP)
AOKI AKIRA (JP)
AOKI AKIRA (JP)
Application Number:
PCT/JP2023/005738
Publication Date:
October 05, 2023
Filing Date:
February 17, 2023
Export Citation:
Assignee:
ROHM CO LTD (JP)
International Classes:
H02M3/155; H05B45/10; H05B45/325
Foreign References:
| JP2014143235A | 2014-08-07 | |||
| JP2017195150A | 2017-10-26 | |||
| JP2012069826A | 2012-04-05 |
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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