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

Explain what is linker, Explain what is Linker? Linker: A huge progra...

Explain what is Linker? Linker: A huge program is divided in smaller programs termed as modules. A linker is a program that links smaller programs together to by a large prog

Electronic and electrical measurement CRO., Describe the construction and w...

Describe the construction and working of atleast two types of storage CRO

What do you mean by external data bus, What do you mean by external data bu...

What do you mean by external data bus? External Data Bus: A bus which connects a computer to the peripheral devices. The microprocessor-8088 has 16-bit registers, 20-bit add

DC machines, what are the functions of interpolar winding and compensating ...

what are the functions of interpolar winding and compensating winding?

Engineer, Transmission Through a LiNb0 3 Plate Examine the transmission of...

Transmission Through a LiNb0 3 Plate Examine the transmission of an unpolarized He-Ne laser beam (?o= 633 nm) normally incident on a LiNb0 3 plate (ne = 2.29, no = 2.20) of thickn

Determine the disadvantages of expert systems, Determine the Disadvantages ...

Determine the Disadvantages of expert systems -  Lacks common sense in some decision making processes -  Errors in the knowledge base can result in incorrect decisions being

Break over voltage of finger voltage - thyristor , Break over  voltage of...

Break over  voltage of Finger Voltage   The  minimum  forward voltage  when the gate  is opened  at which SCR  starts  conducting  heavily is called  the break over  voltage. To

Closed loop block diagram into Electrical Circuit, I have a closed loop or ...

I have a closed loop or feedback system and i want to convert it into electrical circuit. please give me example about this

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