Communication Systems and Signal Processing Problems

Posted by admin on Feb 28, 2024 in Electronics | 0 comments

1) Communication Systems and Signal Processing Problems

• 1) Armstrong FM Modulator Design

  The total amount of frequency multiplication required is: 75 / 1.5 = 50. If the narrowband FM signal is input to a frequency multiplier with factor 50, then the carrier frequency gets converted to 5 MHz. So at the output of the frequency multiplier, we need a mixer, which shifts the carrier frequency by 99 MHz to 104 MHz.

• 2) Binary Channel Decision Rule

  (a) Since 0 and 1 are sent with equal probabilities, the optimal

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Types of Motor Controllers for Different Applications

Posted by admin on Nov 17, 2023 in Electronics | 0 comments

Applications.DC: They are directly connected to batteries in small applications. Or high torques are needed in big industrial applications. Connected to batteries: toys/car whippers. Old elevators/cranes/deployable bridges.

SERVO:

Used when high precision at positioning, speed, or acceleration is needed. Also when high torques at low frequencies. Short and repetitive working cycles. CNC milling machines-close loop/Labeling machine-close loop/Printing presses-open loop.

ASY:

Long working cycles where

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Posted by admin on Jan 5, 2023 in Electronics | 0 comments

Law

The laws are the writen rules aproved by the different goverments or international institutions. The main labour law in Spain is The Workers Statute.

Labour Law Sources

Formal sources:

International legislation

– European legislation: These are legislative acts of the Europen Union that become immediately as a law in all member states simultaneously.

– European directives: The member states of the EU are obliged to reach the results that are stipulated in the directives. The member states are free

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Posted by admin on Aug 16, 2022 in Electronics | 0 comments

UNIT 1. LANGUAGE AS COMMUNICATION: SPOKEN AND WRITTEN LANGUAGE. ELEMENTS DEFINING A COMMUNICATIVE SITUATION: SENDER, RECEIVER, FUNCTIONALITY AND CONTEXT.

1. INTRODUCTION

2. LANGUAGE AS COMMUNICATION

   1. Language definitions

   2. Communication definition.

   3. Communicative competence

3. SPOKEN AND WRITTEN LANGUAGE

   1. Historical attitudes

   2. Differences between writing and speech

5. FACTORS IN A COMMUNICATIVE SITUATION: SENDER, RECIEVER, FUNCIONALLITY AND CONTEXT.

   1. Communication process

   2. Key factors

   3. Language functions 

   4. Context

6. CONCLUSION

7. BIBLIOGRAPHY

1.

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Untitled 1

Posted by admin on Aug 4, 2021 in Electronics | 0 comments

Magnetomotive Force

 = magnetomotive force (mmf) in (A-t)

N = number of turns in coil (t)

I = current in coil (A)

Magnetic Field Intensity

H = magnetic field intensity

 = mmf (A-t)

N = number of turns in coil (t)

I = current in coil (A)

 = mean length of magnetic circuit, or section (m)

Flux Density: 

B = flux density (Wb/m²) or (T)

 = magnetic flux (Wb)

A = cross-sectional area (m²)

Magnetic Circuit Equation:

 = magnetic flux (Wb)

 = magnetomotive force (mmf) in (A-t)

 = reluctance of magnetic circuit (

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mom

Posted by admin on May 27, 2019 in Electronics | 0 comments

Quiz 1&2

To effectively and efficiently use computers, you need to know the parts of an information system, which include people, procedures, software, hardware, data and the Internet. Here between data and information, the total amount you are paid for the week should be information and the number of hours you worked in a week and your pay rate are data. There are two major kinds of software discussed in Chapter1: system software and application software. Midrange computers are

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