Title:
POWER SUPPLY DEVICE FOR CONTROLLING LED
Document Type and Number:
Japanese Patent JP2020061345
Kind Code:
A
Abstract:
To solve the problem that, in a power supply device for lighting an LED light source which is generally designed by an electronic circuit, an electronic component has less reliability under an ultra-low temperature atmosphere when the power supply device is installed under an ultra-low temperature of minus 40°C or less and a high temperature of 70°C or more, and particularly in an electrolyte capacitor, an electrolyte freezes under an atmosphere of minus 60°C, posing a problem for an operation of the power supply device, the electrolyte capacitor becomes a short life under the high temperature atmosphere, and thus, a long life as one purpose of adopting an LED light source cannot be achieved.SOLUTION: A problem under an ultra-low temperature atmosphere and a high temperature atmosphere is reliability of an electrolyte capacitor and an electronic component. A power supply for controlling an LED uses a magnetic circuit type stabilizer without using an electronic circuit to light an LED light source in a pulsating DC output by connecting only a rectification bridge to their output end.SELECTED DRAWING: Figure 1
Inventors:
KITADE WATARU
YOSHIOKA KAZUHIRO
YOSHIOKA KAZUHIRO
Application Number:
JP2018204470A
Publication Date:
April 16, 2020
Filing Date:
October 12, 2018
Export Citation:
Assignee:
TOZAI DENKO CO LTD
International Classes:
H05B45/00