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

Transformer, residual voltage in potential transformer

residual voltage in potential transformer

For parity flag - return instructions , For Parity Flag PRE ( Return ...

For Parity Flag PRE ( Return on Parity Even)  and RPO ( Return on Parity Odd) Instructions RPE returns from the  subroutine to the  calling  program if parity flag is not s

Electromagnetic torque, The torque produced by each conductor in the field ...

The torque produced by each conductor in the field will be:  where A is the area of the armature winding in the magnetic field, Ia is the current in armature winding, and B

Input resistance of an ideal op amp, Q. The input resistance of an ideal op...

Q. The input resistance of an ideal op amp with no feedback is infinite. Investigate the input resistance of an op amp with a feedback resistance RF: (a) When there is no resist

What do you mean by most and least significant digits, Q. What do you mean ...

Q. What do you mean by Most and least significant digits? The MSD (most significant digit) in a number is the digit which represents the largest part of the number. Therefore i

Designing of a 2 way cross-over circuit for loudspeaker, Loudspeakers using...

Loudspeakers using single driver are unable to cover the entire frequency band from low frequency to high frequency. Sometimes multiband frequency is required for the bass enhancem

Show that any periodic signal is not typically energy type, (a) Evaluate wh...

(a) Evaluate whether the sinusoidal signal x(t) = A cos (2πf 0 t + θ) is an energy-type or a power-type signal. (b) Show that any periodic signal is not typically energy type, a

Indirect addressing , Indirect Addressing In this  addressing  mo e al...

Indirect Addressing In this  addressing  mo e also ne  of the  operands is the  stored in the memory. The memory  address of the  operand  is specified  by the  register pair.

Complete the timing diagram of an sr latch, Complete the timing diagram of ...

Complete the timing diagram of Figure of an SR latch.

Split-phase or resistance-split-phasemotor, Q. Split-phase or resistance-sp...

Q. Split-phase or resistance-split-phasemotor? Split-phase or resistance-split-phasemotors: Split-phasemotors have two statorwindings (amainwinding and an auxiliarywinding)with

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