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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Sing Kiong Nguang
The University of Auckland
Control & Systems Engineering Electrical & Electronics Engineering

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Development of Class D Inverter for Acoustics Energy Transfer Implantable Devices Siti Huzaimah Husin; Mohd Shakir Md Saat; Yusmarnita Yusop; Zamre Abdul Ghani; Sing Kiong Nguang
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 1: March 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v7.i1.pp75-84

Abstract

The working principle of half-bridde Class D Parallel-Resonant Inverter (PRI) as power amplifier is presented in this paper. Simulation of the model is carried out using Proteus.  In order to verify the simulation results, an experimental verification is done. This inverter is used to excite the PZT transducers at the suggested resonant frequency of 416 kHz with power level transferred through Acoustics Energy Transfer (AET) concept at about 80mW. As experimental outcome result, the system managed to transfer energy at 66mW to the receiver side.
Design and Analysis of 1MHz Class-E Power Amplifier for Load and Duty Cycle Variations Yusmarnita Yusop; Mohd Shakir Md Saat; Siti Huzaimah Husin; Sing Kiong Nguang; Imran Hindustan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 7, No 2: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v7.i2.pp358-368

Abstract

This paper presents the simulation and experimental of Class-E power amplifier which consists of a load network and a single transistor. The transistor is operated as a switch at the carrier frequency of the output signal. In general, Class-E power amplifier is often used in designing a high frequency ac power source because of its ability to satisfy the zero voltage switching (ZVS) conditions efficiently even when working at high frequencies with significant reduction in switching losses. In this paper, a 10W Class-E power amplifier is designed, constructed, and tested in the laboratory. SK40C microcontroller board with PIC16F877A is used to generate a pulse width modulation (PWM) switching signal to drive the IRF510 MOSFET. To be specific, in this paper, the effect on switching and performance at 1MHz frequency are studied in order to understand the Class-E inverter behavior. Performance parameters relationships were observed and analysed in respect to the load and duty cycle. Theoretical calculations, simulation and experimental results for optimum operation using selected component values are then compared and presented.
Co-Authors Imran Hindustan Mohd Shakir Md Saat Siti Huzaimah Husin Yusmarnita Yusop Zamre Abdul Ghani