Ujt as a relaxation oscillator , Electrical Engineering

UJT as a  relaxation  oscillator

The UJT  is a highly  efficient  switch  it is  used as trigger  a device for SCR. No sinusoidal oscillators saw tooth generators phase control  and timing circuits. Since  UJT  shows negative resistance characteristics it is mostly used  as  a relaxation oscillator.  Relaxation oscillator. Initially the voltage  across capacitor is zero  hence UJT  is off in this condition a small  reverse leakage  current  as a emitter current will be  flowing. As shown  in capacitor  C will  begin  to charge by VBB through  resistor R.

Posted Date: 4/2/2013 7:46:26 AM | Location : United States







Related Discussions:- Ujt as a relaxation oscillator , Assignment Help, Ask Question on Ujt as a relaxation oscillator , Get Answer, Expert's Help, Ujt as a relaxation oscillator Discussions

Write discussion on Ujt as a relaxation oscillator
Your posts are moderated
Related Questions

RST Restart Instructions Restart instructions  are one byte call instructions. Called location for each restart instruction is  predefined on page 0 ( read only memory). They

Q. When the two-wattmeter method for measuring three-phase power is used on a certain balanced load, readings of 1200W and 400W are obtained (without any reversals). Determine the

Name some application where you see use of serial communication. Within the world of serial communications, there are two different equipments are: DTE stand for Data Termin

Interrupt Signals There are five  interrupt  signals in 8085 microprocessor.  These  signals  are used to inter rut the  current  program  under  execution and  transfer the ex

really need help how to run the veener press line for wood-based panels?


(a) What do you understand by Detroit-type automation? (b) What are the situations under which the above kind of automation can be planned ?

what is crossmagnetisation in dc generator

What are tightly coupled systems or closely coupled systems? In a tightly coupled systems the microprocessor (either coprocessor or independent processors) might be share a com