This document summarizes a project to develop a system for wireless power transfer for medical applications such as charging pacemaker batteries without wires. The system works by taking household AC power at 230V/50Hz and converting it to AC power at 20kHz and 12V using a transformer. This power is then rectified, filtered and regulated before being transmitted through coils to power a receiving coil and charge the battery. The document outlines the block diagram, hardware requirements including transformers, rectifiers and regulators, and applications for wireless power such as powering implanted medical devices.

1. WIRELESS POWER TRANSFER
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2. Introduction
The main objective of this project is to develop a system of wireless
power transfer for medical applications.
Many people use pace makers implanted in their body that runs on a
battery.
This project is designed to charge a rechargeable battery wirelessly .
This project is formed out of an ac 230 volt 50 Hz to ac 20 KHz at 12
volt circuit.
But in the project a DC fan motor is provided in place of a battery
charging arrangement for better visibility.

3. Contents
Introduction
Block diagram
Hardware requirements
Power supply
Schematic diagram
Working of the project
Advantages
Applications
Conclusion

4. Block diagram

5. Hardware requirements
HIGH FREQUENCY TRANSFORMER
RECTIFIER
FILTER
VOLTAGE REGULATOR
TRANSISTOR
COIL
LED
1N4007
RESISTOR
CAPACITOR

6. Hardware Components description
1.Design of HF transformers

7. Hardware Components description
2. Using In4007 as Bridge rectifier 3. Capacitors Filter(470µf)
4. 5v Regulator 5. Relay

8. 6.COIL 7. LED
8. RESISTOR

9. 11. Capacitor

10. Description of HF transformers
Electric power transmission over long distances.
High-voltage direct-current HVDC power transmission systems
Large, specially constructed power transformers are used for electric arc
furnaces used in steelmaking.
Rotating transformers are designed so that one winding turns while the other
remains stationary.
A common use was the video head system as used in VHS and Beta video
tape players.
These can pass power or radio signals from a stationary mounting to a
rotating mechanism, or radar antenna.