Title:
光源駆動装置および光源駆動方法
Document Type and Number:
Japanese Patent JP6531121
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To re-determine a lighting control instruction signal, in a light source drive device capable of dealing with any of a PWM signal and a DALI signal by one lighting control section.SOLUTION: A light source drive device 1 includes an interface circuit 2 generating a serial signal according to an input PWM lighting control instruction signal or a DALI lighting control instruction signal, a lighting control section 3 generating a lighting control signal based on a determination result of on which of the PWM lighting control instruction signal or the DALI lighting control instruction signal the serial signal generated from the interface circuit 2 is based, a drive circuit section 9 for driving the light source 10 in response to the lighting control signal generated from the lighting control section 3, an AC voltage detection circuit 11 for detecting AC power supply being transited from OFF to ON, and a re-determination control section 12 for controlling the lighting control section 3 to re-determine which of the PWM lighting control instruction signal or the DALI lighting control instruction signal the serial signal is based, when transition of the AC power supply from OFF to ON is detected.SELECTED DRAWING: Figure 1
Inventors:
Sumi kosuke
Application Number:
JP2017007292A
Publication Date:
June 12, 2019
Filing Date:
January 19, 2017
Export Citation:
Assignee:
MinebeaMitsumi Co., Ltd.
International Classes:
H05B37/02
Domestic Patent References:
| JP2015173031A | ||||
| JP2013069501A |
Foreign References:
| US20130127362 |
Attorney, Agent or Firm:
Isono International Patent and Trademark Office