Control System - Unit -1 to 3 - Formulas

UNIT I   :  BASIC CONCEPTS AND SYSTEM REPRESENTATION

To solve problem in Electrical system

From question, we have electrical circuits in terms of mesh or loop

Procedure:

Step1:Assume polarity for every loop in circuit along clockwise direction  and mark direction of loop current

Step2:Apply KVL for each loop

Step3:We obtain the no of eqn = no of loop

Step4:Apply Laplace Transform on Both side (refer: Table of Laplace transform)

Step5: Find Input and Output Variable.

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Microprocessor 8085 Simulator - Free download

Here is a software that will do all the activities  of Microprocessor kit. Apart from this will have added features like

• It shows the contents of Registers (A,B,C,D,E,H,L).
• It also shows the contents of SP(stack pointer) and PC(Program Counter).
• We can see the Total T-states, Machine cycle and time for execution.
• By using this software we can adjust the frequency.
• Input can be loaded directly in the single scree.
• User friendly command mode.

For downloading this Microprocessor Simulator 8085 software Click Here

Control System - 2 Mark Question & Answers

1. Define System?
A system is a combination or an arrangement of different physical components which act together as an enti
unit to achieve certain objective.
2. What is control system?
A system consists of a number of components connected together to perform a specific function. In a syste
when the output quantity is controlled by varying the input quantity then the system is called control system.
3. Define regulator system.
A regulator system is one in which the output is maintained at a prescribed level.
4. Define Plant?
The portion of a system which is to be controlled or regulated is called the plant or the process.
5. Define Controller?
The element of the system itself or external to the system which controls the plant or the process is call
controller.
6. Define Input.
It is an applied signal or an excitation signal applied to a control system from an external energy source in ord
to produce a specified output.

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Microprocessor -2 Marks - Question and Answers for Unit-1 & 2

1. What is Microprocessor? Give the power supply & clock frequency of 8085?

Ans:A microprocessor is a multipurpose, programmable logic device that reads binary  instructions from a storage device called memory accepts binary data as input and processes data
according to those instructions and provides result as output. The power supply of 8085 is +5V and clock frequency in 3MHz.

2. List few applications of microprocessor-based system.

Ans:
It is used: i. For measurements, display & control of current, voltage, temperature, pressure, etc.
ii. For traffic control and industrial tool control.
iii. For speed control of machines.

3. What are the functions of an accumulator?

Ans:The accumulator is the register associated with the ALU operations and sometimes I/O operations. It is an integral part of ALU. It holds one of data to be processed by ALU. It also
temporarily stores the result of the operation performed by the ALU.

4. List the 16 – bit registers of 8085 microprocessor.

Ans:Stack pointer (SP) and Program counter (PC).

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Unit -2 - Hand written Lecturer Notes for Part-1 & Part-2

INTERFACING AND I/O DEVICES

 As already discussed in class, unit-2 is classified into 3 types

1. Memory Interfacing
2. I/O Interfacing
3. DMA transfer.

Part-1 covers the following topics :

1. address space partitioning 
2.  address map 
3.  Address decoding 
4. Designing decoders circuit for the given address map 
5. Bus contention and 2 – line Control 
6.  Access Time Computations. 

To download the Hand written notes for Part-1  Click here 

Part-2 covers the following topics : 

Data transfer schemes – programmed Synchronous and asynchronous –

Interrupt driven Transfer – Multiple devices and multiple interrupt levels – enabling disabiling

and masking of interrupts

1. Data transfer schemes
2.  Programmed Synchronous
3.  Asynchronous
4. Interrupt driven Transfer
5. Multiple devices and multiple interrupt levels
6. Enabling disabling and masking of interrupts.

To download the Hand written notes for Part-2  Click here

Micro processor - Unit-2 -INTERFACING AND I/O DEVICES Notes

Here I have included Study material for unit-2 ---- INTERFACING AND I/O DEVICES

This study material covers the following topics:

1. Address space partitioning – address map  
2. Address decoding – Designing decoders circuit for the given address map 
3.  Bus contention and 2 – line Control 
4. Access Time Computations.
5. Data transfer schemes  P
6. Programmed Synchronous and asynchronous –Interrupt driven Transfer 
7. Multiple devices and multiple interrupt levels 
8. Enabling disabling and masking of interrupts.

This study material is taken from the book "Introduction to Microprocessor" – Third Edition – Aditya P Mathur Tata McGraw- it covers page number 205 to 253

To download the full study material click here