Design of Wireless Power transmission System includes Rectifier, Inverter, Transmission and receiving coils, High frequency rectifier and DC to DC buck Converter. For more info on the project please connect with me on LinkedIn : https://www.linkedin.com/in/yogesh2711

1. Wireless Power Transmission System
Presented by,
Yogesh Raju N R
Electrical and Electronics Engineering
Sir MVIT

2. Objective
 Wireless Power Transfer(WPT) is the transmission of
electrical energy without wires as a physical link.
WPT nowadays are used in mobile charging
applications .
 Our project focuses on overcoming this problem up to some
extent by designing a WPT system which is powered using
230V, 50Hz single phase AC.

3. Work done :
The WPT system mainly comprises of 5 blocks :
 AC – DC Rectifier
 High Frequency DC – AC Inverter
 Transmission and Receiving coils
 AC - DC High Frequency Rectifier
 DC –DC Buck Converter

4.  AC to DC Rectifier
• At the input side an AC voltage of 40V , 50Hz is
passed into the Full-Bridge Rectifier Circuit.
 Components used : GBXJ2510, Filter Capacitor.
 Output Obtained
• A DC voltage of 60V is obtained as the output
for the AC – DC rectifier block.

5. Calculations:

6. AC – DC Rectifier

7.  DC to AC High Frequency Inverter
• The rectified DC voltage obtained from
Rectifier is converted into high frequency AC
voltage using a H-Bridge Inverter.
 Components used : IRF840, SCS220AG
Output Obtained:
• AC voltage of 53 V is obtained as the output
for DC – AC High Frequency Inverter block.

8. Calculations:

9. DC – AC High Frequency
Inverter

10. Inverter output waveforms

11.  Gate Drive Circuit
• This circuit Drives the High frequency
Inverter.
• SG3525N generates the PWM pulses
which switches the corresponding
MOSFET’s at 130kHz with the help of gate
drive IC IR2104.
 Components used : SG3525N, IR2104

12. Calculations:

13. Gate Drive Circuit

14.  Transmission and Receiving Coils
• The output Voltage obtained from DC-AC high
frequency inverter is transmitted to the
receiving coil by maintaining the circuit in
resonance.
• A series LC and Parallel LC combination at
Transmission and Receiving Ends is used.
• Transmission coil : 22 turns, 31.65uH, 47nF
• Receiving coil : 18 turns, 20.40uH, 66nF
Components used: Litz wire

15. Calculations:

16. Receiving side Output

17. High Frequency Rectifier
• The High frequency AC voltage
obtained in the receiving coil is
rectified to DC voltage using a high
frequency rectifier circuit.
• Components: SCS220AG, Capacitor

18. High frequency Rectifier
Output

19. DC to DC Buck Converter
• The DC output obtained from the High
Frequency Rectifier circuit is
converted to low voltage efficiently
using a DC – DC Buck Converter.
• IC used : LM5576MH
• Output Obtained : 24V DC
• Design Equation as per application
note of LM5576MX series IC

20. Circuit Design:

21. Outputs Obtained in each block:

22.  Result of the project

23.  References:
• UCx52xA Regulating Pulse Width Modulators, SLUS191D –FEBRUARY
1997–REVISED JULY 2017, Texas Instruments
• Bootstrap Circuitry Selection for Half-Bridge Configurations. SLUA887–
August 2018, Texas Instruments
• Andre krus, "Power Transfer Through Strongly Coupled Resonances",
Master of science thesis, Department of Physics, Massachusetts Institute of
Technology, September 2007
• Jonghyun Cho, Jingdong Sun, Heegon Kim, and Jun Fan, Coil Design for
100 KHz and 6.78 MHz WPT system: Litz and Solid Wires and Winding
Methods, ISSN: 2158-1118, IEEE
• https://coil32.net/online-calculators/flat-spiral-pancake-tesla-coil.html

24. Thank You