Rise time - power semiconductor devices , Electrical Engineering

Rise  Time (tr)

During  rise time voltage falls from 90% Va to 10%  where  Va where Va is the initial  anode  voltage. In terms  of current  time taken  by anode  current  to rise form  10% Ia 90 % I a is  the final value  of anode  current. The turn  on time  of a thyristor mainly depends  upon the  rise time. If tr is high means ton will be high.  To reduce the time tr should  be kept  low in limit. The rise  time tr can  be reduced by applying  high and  current  pulses to the gate because is inversely proportional to the magnitude of Is  and its build up rate. During tr Ia  starts spreading from the narrow  conducting  region near  the gate.

Posted Date: 4/2/2013 3:42:44 AM | Location : United States







Related Discussions:- Rise time - power semiconductor devices , Assignment Help, Ask Question on Rise time - power semiconductor devices , Get Answer, Expert's Help, Rise time - power semiconductor devices Discussions

Write discussion on Rise time - power semiconductor devices
Your posts are moderated
Related Questions
What is the impedance Z between terminals A and B of the networks shown below? Express your answers in polar form. Three voltages represented by v 1 (t)=100cosωt, v 2 (t)=7

Q. Show Balanced three-phase loads? Three-phase loads can be connected in either wye (also known as star or Y) or delta (otherwise known as mesh or ). If the load impedances i

Discuss important properties and uses of Glass and glass products. Glass and glass products - Glass is an inorganic material build by the fusion of various metallic oxides. The

how to write a matlab program for TITO system to draw nyquit plots.

Find out Form factor and Peak factor: For the output of full wave rectifier, find out (a) RMS value, (b) Average value, (c) Form factor, and (d) Peak factor. S

Q. Addition and integration can be combined by the summing integrator circuit shown in Figure. With the given component values and input waveforms, sketch v o when S is opened at

Q. Electronic Photo Flash? A simplified schematic diagram of the electric circuit of an electronic photo flash typically used on cameras is shown in Figure 7.7.1. By passing a

Consider the circuit of Figure and obtain the complete solution for the voltage v C (t) across the 5-F capacitor and the voltage vx(t) across the 5- resistor.

Q. The external - characteristics data of two shunt generators in parallel are given as follows: Load Current, A: 0 5 10 15 20 25 30 Terminal voltage I, V: 270 263 254 240 22