Design of switched capacitor converter-based wireless power transfer using mutual inductance for micropower applications

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|Feb 2025

Figures & Tables

Voltage fraction	Input voltage	SCC output voltage	Receiving end voltage
½	24 V	11.63 V	10.81 V
1/3	24 V	9.72 V	8.98 V
1/4	24 V	5.58 V	4.82 V
1/5	24 V	4.5 V	3.79 V
1/6	24 V	3.56 V	2.73 V
1/7	24 V	2.89 V	1.89 V
1/8	24 V	2.77 V	1.97 V
2/3	24 V	15.66 V	14.79 V
2/5	24 V	8.99 V	8.29 V
2/7	24 V	5.82 V	5.13 V
3/4	24 V	17.65 V	16.88 V
3/5	24 V	13.82 V	13.17 V
3/7	24 V	9.66 V	8.87 V
3/8	24 V	8.77 V	7.97 V
4/5	24 V	18.54 V	17.89 V
4/7	24 V	12.88 V	11.93 V
5/6	24 V	19.88 V	18.93 V
5/7	24 V	16.32 V	15.48 V
5/8	24 V	14.78 V	13.99 V
6/7	24 V	19.41 V	18.46 V
7/8	24 V	20.90 V	19.73 V

Papers	Buck/Boost	Topology used	Input voltage	Output voltage	Maximum distance	Efficiency (%)
[2]	Boost	Frequency tracking WPT system based on PLL	30 V	106.8 (effective)	5 cm	70–80
[3]	Boost	Wireless battery recharging	14 V	10 V–38 V	15 cm	<20
[7]	Buck	WPT (Resonant frequency technique)	24 V	23.5 V	15 cm	90–95
Proposed	Buck/boost	WPT using PWM SCC	12 V-24 V	1 V–21 V	20 mm	80–85

Distance (mm)	5	10	15	18	20
VR	7/8	7/8	7/8	7/8	7/8
Input voltage	24	24	24	24	24
Output voltage	21	21	21	21	21
Load resistance (kOhm)	10	10	10	10	10
Receiving voltage	20.97	20.96	20.93	20.903	20.89
Output power	88.29 µW	87.61 µW	85.84 µW	84.1 µW	83.51 µW

	S1	S2	S3	S4	S5	S6	S7	S8	S9	S11
ϕ₁	0	1	1	0	1	0	1	0	0	0
ϕ₂	1	0	1	0	1	0	0	1	0	0
ϕ₃	1	0	1	0	0	1	0	0	0	1
ϕ₄	1	0	0	1	0	0	0	0	1	1

Language: English

Submitted on: Dec 19, 2024

Published on: Feb 18, 2025

Published by: Professor Subhas Chandra Mukhopadhyay

In partnership with: Paradigm Publishing Services

Publication frequency: 1 times per year

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© 2025 Akshat Rawat, Sivaprasad Athikkal, S Saahithi, Vivekanandan Subburaj, published by Professor Subhas Chandra Mukhopadhyay
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.