A Comprehensive Design of Audio-Modulated Dual Resonant Solid State Tesla Coil: Mechanical and Electrical Aspects

Abstract

An Audio modulated Tesla coil is a high voltage, high frequency transformer. In this paper, a comprehensive design of Audio-Modulated Dual Resonant Solid State Tesla Coil (AUM-DRSSTC) is explored. Both mechanical and electrical design specifications of AUM-DRSSTC are investigated in detail. The geometrical mechanical model is derived and built based on mathematical equations. After that, the paper proposes the electrical design for modulating the audio signal, hence, transferring the energy from primary coil to the secondary coil. The methodology of this paper is unique in high voltage generating system engineering. The results of the introduced design are practically tested in the lab. A 15 kV, 200 kHz prototype is built to prove the design aspects. Due to the safety regulations in the research lab inside the university, the electrical board has been tested at low DC input voltage 15 V.

Design of Solid State Tesla Coil With Music Playback Functionality

“…To do so, it uses a combination of a capacitor, a primary coil as an inductor, and spark gap. This design was also termed the spark-gap Tesla Coil [5], [8], [9]. This paper presents the design of a SOILD STATE Tesla Coil that eliminates the need for a spark gap [6], [10].…”

“…Obeidat et al [8] present a design of audio modulated dual resonant solid state tesla coil. The design used a full bridge (Hbridge) to drive the primary side.…”

“…Many of these studies utilized a simple sparkgap-based approach to drive the Tesla coil, which requires a high input voltage in the range of a few ~kV to cause a dielectric breakdown. A more efficient way to drive these Tesla transformers is by using semiconductor switches instead of a spark gap, as described in [6], [7], [8]. Thus, a much lower voltage of around ~80v could be used to a produce significantly large output at the top load.…”

“…6. Obeidat et al [8] tested their SSTC apparatus at a low voltage of ~15Vdc which did not produce arcs at the top load. The output arcs are one of the key features of tesla coil.…”