A Fully Integrated Clocked AC-DC Charge Pump for Mignetostrictive Vibration Energy Harvesting
Round 1
Reviewer 1 Report
Nice work and the idea are clearly presented. My comment is listed in the following:
1) Please make sure all the symbols are defined, such a Vout, Pout, and others.
2) An efficiency chat is recommended to add to demonstrate the circuit performance under different inputs.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This paper presents a clocked AC-DC charge pump with the illustration of a full integration in 65 nm 1V CMOS process.
The related work section in Section 1 is well written and well explained for the two examples. However, I don’t find it sufficiently illustrative. Some more examples should be enumerated, at least regarding the practical implementation of the two suggested solutions.
I’m afraid I cannot agree to so many self-citations: 14-18, 21, 23, that is 7 titles out of 23. In this case, what exactly is the novelty of this paper? This should be clearly stated in the introduction and in the abstract. I understand that this paper is actually an extended conference paper (this fact should be more clearly stated), but is seems to me that it is actually a “concatenation” of conference paper and I don’t see the novelty.
The mathematical model in Section 2.1 is well derived
I believe that the description of the system in Figure 8 should have a stand-alone section. The system is actually the contribution of this paper and should be better highlighted.
The test results are thoroughly described and credible, well supporting the discussions in section 4
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 3 Report
- Authors can use a built-in equation editor to write the equations.
- The figures are placed between the sentences (for example, Figs. 7, 8, and 11). It is not accepted for scientific writing. Please place the figures after/before the paragraph.
- Several sentences are needed to rewrite. Authors merged 2-3 sentences into one sentence, which causes lengthy and clumsy sentences. (Line numbers: 14-17, 73-75, 77-80, etc.)
- Line 153-155: “Note that ….. are available.” Please explain it.
- Line 153-159: It is difficult to understand. Please rewrite this section.
- Line 300-302: “Although the ………….. cost and the smallest form factor.” Can you support this sentence with calculations?
- Line 303-304: “Authors can use built-in equation editor to write the equations.” What authors want to say?
- In table 2, Pout in previous research is higher than that of present work. Why? Please explain.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 4 Report
The paper proposes a fully integrated clocked AC-DC charge pump for mignetostrictive vibration energy harvesting. The model of the system including the charge pump and vibration energy transducer is discussed. The output power is insensitive to the change of the input frequency. In a low input region, the proposed circuit has higher output power than the conventional circuits. However, there are several points should be revised before the paper can be accepted.
- Fig. 6 should be separated into Fig. 6(a), (b), and (c).
- Fig. 18(a) is not clear enough. A revision is required.
- Fig. 1 & Resistance--> and Resistance
- Fig.1 Energy Harvester should add "+" sign and "-"sign.
- Fig. 9, input ac source should add "+" sign and "-"sign.
- Fig. 14, power efficiency should be expressed as "%"
- Fig. 21 Rload should be expressed by using a symbol, which is shown in Fig. 20.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Nice work. All of my concerns are clear by the authors and I have no further questions.
Reviewer 2 Report
My comments have been addressed in a satisfactory manner. I have no further remarks
Reviewer 3 Report
The revised manuscript is improved significantly. Authors addressed the reviewer's comment. I recommend the manuscript for publication.
