Title:
発光素子駆動回路、発光装置、車両
Document Type and Number:
Japanese Patent JP6571918
Kind Code:
B2
Abstract:
A light emitting drive device has an output voltage supply unit, and an emergency drive unit. The output voltage supply unit generates an output voltage from an input voltage on the basis of a control signal transmitted from a control unit, and supplies at least one light emitting element with the output voltage. In the cases where the emergency drive unit received a signal indicating abnormality of the control unit, the emergency drive unit lights the whole or a part of the at least one light emitting element irrespective of the control signal transmitted from the control unit.
Inventors:
High Shinsuke Kimoto
Application Number:
JP2014204261A
Publication Date:
September 04, 2019
Filing Date:
October 02, 2014
Export Citation:
Assignee:
ROHM Co., Ltd.
International Classes:
B60Q1/00; B60Q11/00; H01L33/00; H05B44/00
Domestic Patent References:
| JP2013060085A | ||||
| JP2010015887A | ||||
| JP2014138524A |
Foreign References:
| WO2014017465A1 |
Attorney, Agent or Firm:
Sano patent office