Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply adjustment system and lighting apparatus

A technology of power supply adjustment and power supply substrate, applied in lighting devices, electric light sources, electroluminescent light sources, etc., can solve the problem of uneven illumination of LED indoor lamps

Active Publication Date: 2020-06-26
KOITO ELECTRIC IND
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in a power supply unit for LED interior lights used in railways, variations in the output current occur due to product errors (individual differences in parts) of the power supply unit (power supply board), resulting in uneven illuminance of LED interior lights

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply adjustment system and lighting apparatus
  • Power supply adjustment system and lighting apparatus
  • Power supply adjustment system and lighting apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0042] [Schematic structure of the system]

[0043] figure 1 It is a schematic circuit diagram showing the configuration of the power supply adjustment system 10 in one embodiment of the present invention. The power supply adjustment system 10 is used, for example, in the stage of the pre-shipment test of the power supply substrate 2 .

[0044] This power adjustment system 10 includes a PC (Personal Computer: Personal Computer) 1 as an information processing device, a power board 2 , and an electronic load 6 . The electronic load 6 is a load device that can be set to an arbitrary load voltage according to an instruction from the PC 1 . The electronic load 6 may also be configured as a part of a measuring device integrated with the PC 1 . After completing the pre-delivery test, the PC1 and the electronic load 6 are removed, and only the power substrate 2 is shipped. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a power supply adjustment system, which can simply and accurately adjust the deviation of the output current of the power supply substrate. The power supply adjustment system according to one aspect of the present invention including: an electronic load whose load voltage is variable; a power supply board that supplies the electronic load with current; and an information processing apparatus that controls the load voltage of the electronic load and the output current of the power supply board to the electronic load on the basis of a current value in the load voltage, in which the information processing apparatus includes a control unit that sets a plurality of load voltages in a predetermined range as the load voltage of the electronic load and sets a correction current value for adjusting the output current to a preset target current value for each of the plurality of load voltages.

Description

technical field [0001] The present invention relates to a power adjustment system for adjusting deviations in output current caused by product errors of power supply substrates. Background technique [0002] LED lighting is widely used in various fields such as lighting fixtures and signal lights. For example, in a power supply unit for LED interior lights used in railways, variations in output current occur due to product errors (individual differences in parts) of power supply units (power supply boards), resulting in uneven illuminance of LED interior lights. [0003] Therefore, for example, Patent Document 1 discloses a mobile terminal device that includes: a standard table that stores in advance standard setting values ​​for each color required to obtain a given light emission color, so that Correcting the deviation of the light quantity of the LED that emits light when a call is received; means for obtaining a correction coefficient based on the set value of each colo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/345H05B44/00
CPCH05B45/3725H05B45/14H05B45/24H05B45/10
Inventor 泉贵之矢吹幸士丸山和夫
Owner KOITO ELECTRIC IND