1-phase full bridge inverter will rl load , Electrical Engineering

Assignment Help:

1-Phase Full  Bridge  inverter will RL Load

For a  resistive load R the load  current  wave form  will be  identical with load  voltage wave form  and feedback  diodes will not  come into  conduction. In  the case of RL -Load  the wave form  of output current is  shown in the  circuit of 1-? full bridge  inverter with Rl load  is shown .

Before t =0  thyristors T3 and T4 are conducting and load  current is flowing in  negative direction. After  T3 and T4  are turned of at t=0  load current  io can not change its direction immediately due to the existence of inductance in the load. Therefore  after t= 0 diodes D1 and D2 start conducting and  allow the  load  current  to flow  against  the source voltage. Load voltage becomes  Vdc.

At t=0  thyristor  T1 and T2  are gated but these  thyristors will not  turn on because these are reverse biased by voltage drops across  D1 and D2. After the  load  current  becomes equal to zero T1 and  T2  start concocting up to  the period t = T/2  now  load  current  start flowing in positive direction ( as we  assumed in circuit) at  t= T/2 T1 and   T2 are  commutated and T3  and T4  are gated but tagging  the current can not change its direction immediately. As  a result diodes D3 and D4 starts conducting to allow the current to flow in positive direction. Thyristors T3 and T4 will not  start conduction until the  load current through diodes D3 and D4 falls  to zero because these thyristors will not turn  on as these  are reverse  biased by the voltage drops in the D3 and

 


Related Discussions:- 1-phase full bridge inverter will rl load

Microcontroller, 1. Look at a method of creating AC from DC. 2. This may...

1. Look at a method of creating AC from DC. 2. This may involve a microcontroller. 3. Method must be able to synchronise your produced AC to local AC supply. 4. Look at po

Introduction to electronics, Explain the difference between a microprocesso...

Explain the difference between a microprocessor and an embedded microcontroller

Power system, maxium capacity of genrators in practical use

maxium capacity of genrators in practical use

Digital electronics logic family, For a given logic family, consider VOL = ...

For a given logic family, consider VOL = 0.25V and VOH = 5 V . For a given circuit, VIL = 0.96 V and VIH = 2.18 V. Find the largest positive-going and largest negative-going nois

Explain protected mode interrupt, Explain protected mode interrupt. In...

Explain protected mode interrupt. In this mode, interrupts have exactly similar assignments as in real mode, but the interrupt vector table is not same. In place of interrupt

Plc - programmable logical controller , PLC ( Programmable Logical  Contr...

PLC ( Programmable Logical  Controller ) PLC  stand for programmable logical  controller.  PLC   is an  industrial computer  used to monitor inputs and depending upon  their  m

Explain limit signal spectrum to prevent aliasing, Explain Limit Signal Spe...

Explain Limit Signal Spectrum to Prevent Aliasing? The sampling frequency should at least be two times that of the highest frequency in the incoming signal to avoid aliasing. T

Digital communication systems, Q. Digital communication systems? Today ...

Q. Digital communication systems? Today digital communication systems are in common use, carrying the bulk of our daily information transmission through a variety of communicat

Find out the low-frequency voltage gain, Design a differential amplifier wi...

Design a differential amplifier with active current mirror load in Cadence using TSMC 0.35 micron process. The power supply voltage is 3.3V. A 10µA current reference is available

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd