Ujt as a relaxation oscillator , Electrical Engineering

Assignment Help:

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.


Related Discussions:- Ujt as a relaxation oscillator

Show that the output will be high, Considering the TTL NAND gate circuit of...

Considering the TTL NAND gate circuit of Figure, with one or more inputs low, show that the output will be high.

Ac resistance and dc resistance, Background Information Electrical mach...

Background Information Electrical machines usually consist of copper windings on steel cores, and their AC resistance is greater than their DC resistance. The power loss has

Speed control of ac machine, what is meant by pole changing methods in ind...

what is meant by pole changing methods in induction motor

Customer relationship management software, Customer Relationship Management...

Customer Relationship Management Software CRM software products are most varied and variable in cost and functionality. The significant CRM software application includes: a

Explain commercial adcs and dacs, Explain Commercial ADCs and DACs? Ana...

Explain Commercial ADCs and DACs? Analog interface chips (AICs), like those in the Texas Instruments TLC32040 series, consist of all type of the analog components that explaine

Memory address - address bus , Memory Address The memory  address is of...

Memory Address The memory  address is of 16  bits. It ranges from 0000?H to  FFFH 16bits address lines of 8085 microprocessor are  capable  of addressing 216 i e 65, 536, ( or

Define number systems, Q. Define Number Systems? A number system, in ge...

Q. Define Number Systems? A number system, in general, is an ordered set of symbols (digits) with relationships defined for addition, subtraction, multiplication, and division.

Image gradient, Image gradient Write an m-file "grad.m" which computes ...

Image gradient Write an m-file "grad.m" which computes and displays gradient and orientation of an input image (use Gaussian derivatives). To compute Gaussian derivative in o

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