Title:
LED STROBE LIGHTING POWER SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2017220349
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an LED strobe lighting power source device that, when a plurality of LED illuminating devices emit strobe-light, is able to prevent variations in an amount of light emitted and a temporal change.SOLUTION: Constant voltage circuits 13a, 13b are provided, which output a constant voltage by independently decreasing output voltage of an AD/DC converter 10 in correspondence with semiconductor switches 15a, 15b corresponding to LEDs 3a, 3b. Respective input terminals of the constant voltage circuits 13a, 13b are provided with capacitors 12a, 12b, and resistors 11a, 11b are provided between the respective input terminals of the constant voltage circuits 13a, 13b and a voltage output terminal of the AD/DC converter 10. Even if the LEDs 3a, 3a simultaneously emit light, a drive current flows and, consequently, respective inputs voltages of the constant voltage circuits 13a, 13b decrease, operation of constant voltage is not affected, and the constant voltage circuits 13a, 13b output a constant voltage.SELECTED DRAWING: Figure 1
More Like This:
| JP2012114028 | LIGHTING APPARATUS |
| JP3849168 | ILLUMINANCE LEVEL RECORDER, ILLUMINATION CONTROLLER, AND CENTRALIZED SUPERVISORY AND CONTROL SYSTEM |
| JP2013149480 | LUMINAIRE |
Inventors:
NOMURA YUKIO
Application Number:
JP2016113585A
Publication Date:
December 14, 2017
Filing Date:
June 07, 2016
Export Citation:
Assignee:
KYOTO DENKIKI KK
International Classes:
H05B37/02
Attorney, Agent or Firm:
Kyoto International Patent Office