Series/Parallel Boost/Buck DC/DC Converter as a Visible Light Communication HB-LED Driver Based on Split Power^†

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

1. Please refine the title clearly “High performance Series/Parallel Boost/Buck DC/DC Converter as a Visible Light Communication HB-LED Driver based on Split Power†”. 2. In Figure 1, why analyzed temperature shift in HB-LED? Please give a detailed explanation. 3. This paper is not concise enough, and attention should also be paid to English grammars and words. 4. In part 3.3, Figure 5 cannot explain the mechanism about efficiency. 5. A table could be given about the performance of Series/Parallel Boost/Buck DC/DC. 6. Please provide a detailed comparison with other research findings regarding the proposed Converter.

Comments on the Quality of English Language

The English could be improved to more clearly express the research.

Author Response

All answers to the reviewer questions and comments are included in the file attached.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Dear editors

This work proposes a High-Brightness LED (HB-LED) driver for Visible Light Communi-15 cation (VLC) based on two converters: a high-frequency Buck DC/DC converter and a low-frequency Boost DC/DC converter, connected in series with respect to the LED load and connected in parallel at the input. It is an interesting and meaningful research task. It is worth publishing after minor revisions in format.

The comment details are as follows:

• As a research paper, the section “The paper is organized as follows. Section 2 reviews the analysis of the Series/Parallel 120 Boost/Buck DC/DC converter, highlighting the main advantages over other topologies 121 that use split power [14]-[15]. Section 3 describes the power flow between the two con-122 inverters and an efficiency analysis. The experimental results are given in Sections 4 and 123. finally, the conclusions are described in Section 5.” should be deleted.
• Figure 5 should include a horizontal coordinate.
• The format of Figure 7 and Figure 8 and the quality of picture are needed to be improved.

Author Response

All answers to the reviewer questions and comments are included in the file attached.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

Title: High performance Series/Parallel Boost/Buck DC/DC Converter as a Visible Light Communication HB-LED Driver based on Split Power

General comment:
In this paper, a high-brightness LED driver for visible light communication is designed based on two converters: a high-frequency buck DC/DC converter and a low-frequency DC/DC converter. These converters offer high efficiency, excellent communication capability, flexible input voltage, and enhanced data rate. The paper needs to be revised, and the following questions must be answered, and more research comparison items should be added:

 

Technical comments:

1- The changes in essential design parameters, such as bit error rate (BER) using the driver designed in VLC, should be investigated and included in the paper.

2- How will the proposed driver's performance be for different communication channel length values?

3- To enhance the quality of the paper's results, the performance of data rates for lower-order modulations, such as BPSK and QPSK, should be investigated and compared.

4- Considering the received bit rate of 1.5 Mbps, the paper should include analytical relations related to the calculations of data rate in terms of output power from the power driver.

5- Changes in the FPGA codes can also be prepared the proposed driver for variable communication channel conditions, improving the quality of the paper.

6- The authors should compare the results of other research on improving data transfer rates and power management with those of the current paper in a comparison study.

Author Response

All answers to the reviewer questions and comments are included in the file attached.

Author Response File: Author Response.pdf

Round 2

Reviewer 3 Report

Comments and Suggestions for Authors

No additional comment. The paper can be accepted.