SQUARE WAVE GENERATOR IN PROTEUS 8 SOFTWARE

The simplest switching scheme for the full-bridge converter produces a square wave output voltage. The semiconductor devices T1, T2, T3, T4 must be fully controllable switches which can be turned on and off (such as BJT, MOSFET, JFET, IGBT, GTO, MCT). Therefore, a feedback diode is placed in parallel (antiparallel) with each switch. The switches S1, S2, S3, S4 in the full-bridge inverter must be capable of carrying both positive and negative currents. There are many types of modulation techniques, the most familiar are: PWM technique provides a way to push harmonics to higher frequencies, making filtering easier. The main aim of these modulation techniques is to enhance the output of the inverters by obtaining an output voltage or current very close to sine waveform. The most common one is the Pulse Width Modulation (PWM) technique. There are several control techniques for inverters.

The full- bridge converter of Fig.1 is the basic structure of an inverter.Д¬omplete classification of inverter circuits is as follows: TABLE I.

Inverters are circuits that convert DC to AC. Once the theoretical simulation is made, the circuit should be built into a protoboard for real testing. After that, Proteus simulations are carried out in order to have a better idea about the results expected. For this purpose, the way to obtain the PWM signal from the Arduino board is explained. The most important task in this project is the implementation of the PWM modulation digitally. In order to achieve this, the first step is a theoretical reminder about inverters. The main objective of this project is the design, simulation and testing of a single-phase inverter for educational purposes. Inverters can be classified into many types based on output, source, type of loadвЂ¦ Inverters are used in applications such as adjustable-speed ac motor drives, uninterruptible power supplies (UPS), active filters, flexible ac transmission systems (FACTS), running ac appliances from an automobile batteryвЂ¦ Inverters are circuits that transfer power from a DC source to an AC load. Keywords Single-phase inverter, PWM, Arduino Proteus simulations

SQUARE WAVE GENERATOR IN PROTEUS 8 SOFTWARE

The complete design is modeled in Proteus software and its output is verified practically. To achieve those aims, a first complete theoretical analysis will be made, including the study of the different conventional PWM techniques. This project has the aim to use Arduino board to ease the Pulse Width Modulation (PWM) implementation on a single-phase inverter, substituting analogical circuitry. Simulation and Design of A Single Phase Inverter with Digital PWM Issued by An Arduino BoardДepartment of Electromechanical Engineering, Military Academy, Foundouk Jedid, Nabeul, Tunisia.Дepartment of Electromechanical Engineering, Military Academy, Foundouk Jedid,Д®nergy and Environment Research Unit, National School of Engineering of Tunis, University of Tunis El Manar, BP 37, Belvedere 1002 Tunis-Tunisia.ДЄbstract The current paper has as major purpose the design of a single-phase inverter for educational purposes.

Square wave generator in proteus 8