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

Find the percent of probable error, Q. A voltmeter with a full scale of 100...

Q. A voltmeter with a full scale of 100 V has a probable error of 0.1% of full scale. When this meter is employed to measure 100 V, find the percent of probable error that can exis

Instruction set architecture, assume that the top of the stack in the progr...

assume that the top of the stack in the program is pointed by the register sp.

Design an integrator, Q. An integrator as shown in Figure is to be designed...

Q. An integrator as shown in Figure is to be designed to solve dy(t) / dt + 2000y (t) = 0 with y(0) = 5. If R i is chosen to be 10 k, find C f .

Charge variation with time, Q. A charge variation with time is given in Fig...

Q. A charge variation with time is given in Figure. Draw the corresponding current variation with time.

What is direct memory access, What is Direct memory access? Direct memo...

What is Direct memory access? Direct memory access (DMA) is a process wherein an external device takes over the control of system bus by the CPU.DMA is for high-speed data tran

Working principle of ultrasonic machining, Explain the basic working princi...

Explain the basic working principle of ultrasonic machining with the help of diagram. What are the different kinds of tool materials explain, tool holders are used in ultrasonic

Common-emitter configuration, Q. Common-Emitter Configuration? The emit...

Q. Common-Emitter Configuration? The emitter part of a circuit being common to both the input and the output portions, Figure (a) illustrates a common-emitter (CE) BJT amplifie

Any number system to decimal conversion , Any number System  to Decimal Co...

Any number System  to Decimal Conversion To convert a number in any number system to its  equivalent  decimal number, simply multiple each  digit of the number  with its  posi

Determine the expression for strain energy, A 3.2m long bar of 16mm in diam...

A 3.2m long bar of 16mm in diameter hangs vertically and has a collar attached at the lower end calculate the max. stress induced when a weight of 80 kg falls fromaheight of 32mm o

Plc and control system analysis, The assignment is to plan, design and writ...

The assignment is to plan, design and write a PLC program on the FX Training Software using a PART SUPPLY CONTROL SYSTEM based on the requirement specification outlined be

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