Single Phase H-Bridge Inverter Essay

DESIGN AND DEVELOPMENT OF SINGLE PHASE H-BRIDGE INVERTER FOR FLUX SWITCHING MACHINE DRIVE

M.Venkateswarlu

Dept of PED

Vellore institute of technology

Chennai(T.N.), INDIA

[e-mail]

Abstract— This paper describes about single phase H-bridge inverter which was developed for a flux switching machine .The performance of the inverter and the motor was tested. It is explained why to choose this converter for a flux switching machine and the advantages and disadvantages are mentioned. The simulation of the proposed converter using PSPICE software was done and the importance the converter was presented.

Keywords—H-bridge inverter, flux switching motor

I. INTRODUCTION Power electronics is interdisciplinary and is at the confluence

Mainly H-bridge inverter consists four electronic switches which we placed in two legs and each leg having two switches. Apart from the construction here one terminal of the load is connected to one leg of the h bridge inverter and another end of the load is connected to the another leg of the inverter. so that the whole diagram will look like the shape of the alphabet “H”. so that the dc to ac converter is knows as the H-bridge inverter or H-bridge dc to ac converter. The circuit diagram of the h- bridge shown below and here in this figure the S1,S2,S3, S4 are the switches, M is motor and Vin is input

Here we did the simulation in the PSPICE. The H-bridge inverter requires less number of components to get our desired output and It does not require any clipping diodes or voltage balancing capacitors. So that the PSPICE simulation circuits and results are

Fig(5): Simulation of single phase H-bridge inverter

Fig(6): Simulation results of H-bridge inverter

IV.HARDWARE IMPLIMENTATION

In this section explains the hardware design of the single phase H-bridge inverter and the driver circuit for single phase H-bridge inverter. Here in this section we used IRF540 mosfet switches in main power circuit and IR2110 IC used as the driver circuit for H-bridge inverter and also PIC16F877A is used as a microcontroller for the same main power circuit.

Here we used IRF540 has a good dynamic dV/dt ratings, fast switching ,simple drive requirement and voltage and current ratings are 100V and 20A respectively. Here we use IR2110 as a driver circuit for this H-bridge inverter. It has so many advantages. It is a high side and low side driver, all high voltage pins are at one side, separate logic and power ground, shut