Analog computers, Electrical Engineering

Assignment Help:

Q. Analog Computers?

Although not used as much as the digital computer (which nowadays forms the basic tool for numerical analysis and the solution of algebraic as well as differential equations), the analog computer still retains some significant advantages over the digital computer. A physical system can be represented by a set of differential equations which can be modeled on an analog computer that uses continuously varying voltages to represent system variables. The differential equation is solved by the computer, whereas the modeled quantities are readily varied by adjusting passive components on the computer. The mathematical functions (integration, addition, scaling, and inversion) are provided by op amps.

The analog computer components are shown in Figure. Let the ordinary differential equation to be solved be

1363_Analog Computers.png

The simulation of the solution is accomplished by the connection diagram of Figure 5.4.19. Time scaling is done by redefining t as t = ατ , in which case the differential equation [Equation] becomes

1064_Analog Computers1.png

1423_Analog Computers2.png

The coefficients may simply be scaled by the appropriate factors to change the solution time of the analog computer. For example, if α = 20, then t = 20 s corresponds to τ = 1 s, and thus the solution time may be reduced.


Related Discussions:- Analog computers

Control bus -bus organisation, Control  Bus The control  bus comprises...

Control  Bus The control  bus comprises of various  single  lines that carry  various  control  signals for synchronizing  various devices  and performing different task. The m

Binary subtraction , Binary Subtraction Negative numbers are represent...

Binary Subtraction Negative numbers are represented in 2 complement form and subtraction is also  per formed  using  2 complement  method in microprocessor. Hence we will  dis

Amper circuital lw, the plot of amper circuital law by using matlap?

the plot of amper circuital law by using matlap?

What do you understand by progressive control, Q. What do you understand by...

Q. What do you understand by progressive control? Progressive Control: Step by step system is an example of progressive control. The connection is set up in stages, in response

V-i characteristics - power semiconductor devices , V-I Characteristics ...

V-I Characteristics  In the  normal  mode of  operation of an IGBT  a positive  voltage is applied to the collector relative to emitter. When  the gate is at zero potential wi

Obtain the z-parameters for the circuit, Q. (a) Consider the capacitor -...

Q. (a) Consider the capacitor - input filter circuit of Figure and obtain the z-parameters for the circuit. (b) Determine the transfer function V 2 /V 1 when I 2 is zero.

Objective of long-term plans for technical loss reduction, Objective of Lon...

Objective of Long-Term Plans for Technical Loss Reduction The primary objectives of strengthening and improvement of sub-transmission and distribution system in the long-term

What is work-sharing constructs, Q. What is Work-Sharing Constructs? A ...

Q. What is Work-Sharing Constructs? A work-sharing construct distributes execution of associated region amongst the members of team which encounters it. A work-sharing construc

Explain about simplex communication, Q. Explain about Simplex communication...

Q. Explain about Simplex communication? Simplex communication: Microphone and the earphone are transducer elements of the telephone communication system. Microphone converts

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