A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point

Fırat Aydemir; Mehmet Ebeoğlu

doi:10.5281/zenodo.4698418

TR EN

A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point

Öz

In this study, a driver system for high-power light-emitting diodes (LEDs) is presented. The proposed driver system is based on flyback converter topology, and it uses single-stage power factor correction with microcontroller support. The driver has two main parts; a source for an LED array, and a control unit including sensors. Instead of using conventional constant voltage or constant current driver topologies, the proposed system adjusts the output voltage by considering the LED parameters, the number of serial and parallel LEDs on the load array, and the data from sensors. Via the current sensor, the output current is measured at specific periods and limited by the microcontroller according to the LED load. Moreover, the microcontroller can detect an open circuit condition on the LED array by following current changes. A temperature sensor and a light-dependent resistor (LDR) are used to increase the lifetime of LEDs.

Anahtar Kelimeler

LED , LED Driver , Smart Driver , LED Life , LED Array

A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point

Abstract

In this study, a driver system for high-power light-emitting diodes (LEDs) is presented. The proposed driver system is based on flyback converter topology, and it uses single-stage power factor correction with microcontroller support. The driver has two main parts; a source for an LED array, and a control unit including sensors. Instead of using conventional constant voltage or constant current driver topologies, the proposed system adjusts the output voltage by considering the LED parameters, the number of serial and parallel LEDs on the load array, and the data from sensors. Via the current sensor, the output current is measured at specific periods and limited by the microcontroller according to the LED load. Moreover, the microcontroller can detect an open circuit condition on the LED array by following current changes. A temperature sensor and a light-dependent resistor (LDR) are used to increase the lifetime of LEDs.

Keywords

LED , LED Driver , Smart Driver , LED Life , LED Array

References

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Details

Primary Language

English

Subjects

Electrical Engineering

Journal Section

Research Article

Authors

Fırat Aydemir ^*
0000-0002-8965-1429
Türkiye

Mehmet Ebeoğlu
0000-0003-3045-3003
Türkiye

Publication Date

June 21, 2021

Submission Date

April 10, 2021

Acceptance Date

April 17, 2021

Published in Issue

Year 2021 Volume: 2 Number: 1

DOI

https://doi.org/10.5281/zenodo.4698418

IZ

https://izlik.org/JA58KY24KU

APA

Aydemir, F., & Ebeoğlu, M. (2021). A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point. Journal of Science, Technology and Engineering Research, 2(1), 23-31. https://doi.org/10.5281/zenodo.4698418

AMA

1.Aydemir F, Ebeoğlu M. A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point. Journal of Science, Technology and Engineering Research. 2021;2(1):23-31. doi:10.5281/zenodo.4698418

Chicago

Aydemir, Fırat, and Mehmet Ebeoğlu. 2021. “A Single-Stage Smart Driver With Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point”. Journal of Science, Technology and Engineering Research 2 (1): 23-31. https://doi.org/10.5281/zenodo.4698418.

EndNote

Aydemir F, Ebeoğlu M (June 1, 2021) A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point. Journal of Science, Technology and Engineering Research 2 1 23–31.

IEEE

[1]F. Aydemir and M. Ebeoğlu, “A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point”, Journal of Science, Technology and Engineering Research, vol. 2, no. 1, pp. 23–31, June 2021, doi: 10.5281/zenodo.4698418.

ISNAD

Aydemir, Fırat - Ebeoğlu, Mehmet. “A Single-Stage Smart Driver With Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point”. Journal of Science, Technology and Engineering Research 2/1 (June 1, 2021): 23-31. https://doi.org/10.5281/zenodo.4698418.

JAMA

1.Aydemir F, Ebeoğlu M. A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point. Journal of Science, Technology and Engineering Research. 2021;2:23–31.

MLA

Aydemir, Fırat, and Mehmet Ebeoğlu. “A Single-Stage Smart Driver With Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point”. Journal of Science, Technology and Engineering Research, vol. 2, no. 1, June 2021, pp. 23-31, doi:10.5281/zenodo.4698418.

Vancouver

1.Fırat Aydemir, Mehmet Ebeoğlu. A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point. Journal of Science, Technology and Engineering Research. 2021 Jun. 1;2(1):23-31. doi:10.5281/zenodo.4698418

Studies published in the journal are licensed under a

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND 4.0) International License.

A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point

Öz

Anahtar Kelimeler

A Single-Stage Smart Driver with Automatic Dimming Capability for Multiple LED Strings Biased from a Single Point

Abstract

Keywords

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

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