Explain working of inverting amplifier, Electrical Engineering

Assignment Help:

Q. Explain working of Inverting Amplifier?

One common op-amp circuit is shown in Figure. For the case of finite voltage gain Ao of an op amp that is otherwise ideal, the output voltage becomes

527_Explain working of Inverting Amplifier1.png

150_Explain working of Inverting Amplifier.png


which is independent of the op amp's gain Ao. The sign inversion associated with Equation makes the amplifier "inverting." Generally if Ao is at least 200 times the magnitude of R2/R1, then the actual gain given by Equation will be within 1% of the ideal gain given by Equation. Assuming infinite gain of the op amp, it follows that

vd = v2 - v1 = 0 or v1 = v2

Since terminal 2 is at ground potential (zero) in Figure, terminal 1 is said to be a virtual ground.Notice that when R2 =R1, the inverting amplifier becomes a voltage follower with inverted sign and a gain magnitude of unity.


Related Discussions:- Explain working of inverting amplifier

Carry flag - sub subtract instruction , Carry Flag CY is  reset  as e...

Carry Flag CY is  reset  as explained  above.  ( in chapter 1 we have  sen in the 2 complement  methods of subtraction that  the carry  is set  when the result is positive. He

Bus organisation, Bus Organisation Set of  communication lines in micro...

Bus Organisation Set of  communication lines in microprocessor  which  carry  bits from microprocessor to  peripherals  ( memory  inputs ports  output  ports  and other chips

Briefly explain energy and power, Q. Briefly Explain Energy and Power? ...

Q. Briefly Explain Energy and Power? If a charge dq gives up energy dw when going from point a to point b, then the voltage across those points is defined as v = dw/dq If

Electronic devices technology and circuits, Please can you explain the oper...

Please can you explain the operation of a transistor in a Common Emitter Class A audio Amplifier?

Spectral analysis and signal bandwidth, Q. Show Spectral Analysis and Signa...

Q. Show Spectral Analysis and Signal Bandwidth? Spectral analysis is based on the fact that a sinusoidal waveform is completely characterized by three quantities: amplitude, ph

What is error-rate control, Q. What is error-rate control? A system is ...

Q. What is error-rate control? A system is said to possess error-rate damping when the generation of the output in some way depends upon the rate of change of the actuating sig

Bidirectional shift register, Design 2-bit bidirectional shift register? ...

Design 2-bit bidirectional shift register? ## A list of ten 8-bit numbers is located at address $5000. Write a 68000 Assembly program (flowchart and code) to sort those numbe

Find the ratio of the speed of the generator, Q. A dc shunt machine has an ...

Q. A dc shunt machine has an armature winding resistance of 0.12  and a shunt-?eld winding resistance of 50 . The machine may be run on 250-V mains as either a generator or a mot

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