Available online www.ejaet.com European Journal of Advances in Engineering and Technology, 2015, 2(1): 68-72 Research Article ISSN: 2394 - 658X 68 Wireless Power Transfer by Engrafting Resonance to High Voltage Pulses Sk Khader, P Vivek, P Santoshi, P Pavani and Ch Kusma Kumari Department of Electronics and Communication, Gayatri Vidya Parishad College of Engineering (Autonomous), Visakhapatnam, India chkusumasrinivas@gvpce.ac.in _____________________________________________________________________________________________ ABSTRACT This paper is about transmitting electricity wirelessly using high voltage high frequency signals. The device uses concepts of tesla coil, mutual induction and resonance to procreate electricity in the receiver coil placed at a distance. The main aim in designing this device is to allow automatic recharge of mobiles when the power gets drained. This is device can also be used for internal pacemaker charging without the need of surgery. To achieve this, mutual induction and resonance concepts were employed Mutual induction is achieved through high voltage pulses that can be achieved as a novel attempt. From this experimental setup the maximum distance of transmission achieved is 55cm. Key words: Mutual induction, resonance, high voltage, spark gap, coil _________________________________________________________________________________ INTRODUCTION This paper explicates an experimental setup which deals with transferring power wirelessly by using the concepts of high voltage and low frequency. It is called as ‘witricity’ which means wireless power transmission. The delineate was initially designed by Sir Nikola Tesla in 1900 [1]. In 1904 Nikola Tesla contrived a large scale project of transmission of electricity wirelessly entire the city it wasn’t successful due to the lack of funding. To avoid surgery for the recharge internal pacemakers and to auto recharge laptops, mobiles and other devices wireless transmission of electricity can be engaged [2]. In 2004 MIT university researchers designed a prototype which could transmit electricity for 2 meters to flare a 60watt blub. But this design was bulky and requires high expenditure. Designers across the world have designed similar projects which aren’t portable [3]. In this design a central transmitter is employed which is portable enough to place it on a table. The total diameter of this design is 55cms.This has the capability to drive smaller appliances like lights, mobiles etc. The receiver size is variable depending on the device used by the receiver. Maximum distance can be achieved when the receiver and transmitter are identical. DESIGN DESCRIPTION The design was inspired from the tesla coil design of Nikola Tesla as illustrated in [4], where the secondary coil is removed and the primary coil is used as the transmitter. A circular cardboard structure is taken to wound the coil around it and the power supply and driver circuit are placed at centre which would function as transmitter section. The main blocks present in the experimental setup are Power supply, Oscillator, Fly back transformer, Clamper circuit, Capacitor bank, Transmitter coil, Receiver coil as illustrated in Fig.1. The block diagram in Fig.2 illustrates the transmitter section.