Essays on Circuit Diagram

REPORT NUMBER 4

‘LOGIC DECODING CIRCUITS AND MULTIPLEXERS’ The report presented is the sole work of the author. None of this report is plagiarised (in whole or part) from a fellow student's work, or from any un-referenced outside source.

AIM:

INTRODUCTION: This experiment is about the design, implementation, and testing of logic decoding circuits. In PART A, an industrial system problem is presented which requires a logic decoding control system. The solution to the problem is a combinatorial logic circuit that takes four (4) logic inputs (Bottle Position B, Water level indicator W, Flow valve position V, and Water filtration system F), and ...

555timer

Introduction The 555 integrated circuit (chip) is used in a variety of timer and oscillator applications. A 555 timer is used to provide time delays and oscillations and as a flip-flop element. The device has additional terminals provided to trigger or resetting purpose (Nair, 2006). During the time delay operation mode, time is precisely controlled by an external resistor and capacitor. While working as an oscillator, the duty cycle and the frequency are accurately regulated by two external resistors and a capacitor (Brumbach, & Clade, 2003). 555 is triggered and reset on falling waveforms. A typical 555 timer IC is ...

REPORT NUMBER 2

The report presented is the sole work of the author.  None of this report is plagiarized (in whole or part) from a fellow student's work, or from any un-referenced outside source.

AIM:

The purpose of this experiment is to: Investigate the voltage switch over the points required for logic high or low levels. Prove experimentally different Boolean laws and logic theorems. Use different logic laws and theorems, to simply a combinatorial logic circuit. INTRODUCTION: This level detector circuit is based upon a LM311 Digital Comparator. This digital comparator is a device that produces an output level, either high or low ...

Objective:

This experiment is about the implementation and testing of low-pass, high-pass, and band-pass filters. The frequency response of each filter is analyzed using Bode plots. The properties of passive devices will be used to explain the response.

Equipment List:

EQUIPMENT Oscilloscope 2 Function Generators

COMPONENTS

1µF Capacitors 1 kΩ Resistors

Relevant Theory/Background Information:

A low-pass filter is a filter that allows frequencies below a cut-off frequency while filtering out frequencies above this cut-off frequency. For a simple series RC circuit, a low-pass filter can be created by connecting the input signal to the resistor and taking the output from the capacitor. The cut-off frequency ...

Lab Report (Kirchhoff’s Laws)

Introduction This lab experiment was intended to learn and apply Kirchhoff’s Rules in calculating the current and voltages in a circuit. To achieve this, a circuit is built consisting of resistors that are in parallel and series which will aid to test the different aspects of Kirchhoff’s Rule.

The simplest circuit is that which can be reduced to an equivalent circuit having a single resistance

and a single voltage source. Many circuits are not simple and require the use of Kirchhoff’s

Laws to determine voltage, current, or resistance.

Objectives: forecast by Kirchhoff’s Laws.

Theory:

A junction is a point in a circuit where more than three wires join or where a current gets divided. A loop is a path which is closed by two ...

Introduction

This report is about the design of a two-way crossover laud speakers. The major task is the building of the circuit diagram. In the design, I have ensured that the 12dB crossover follows the Linkwitz-Riley alignment. This is achieved through the use of a sub-Bessel filter whose Q is 0.5 instead of the common Butterworth alignment resulting from a Q of 0.707. At the crossover frequency, the Butterworth crossovers have a 3dB peak. This is the main problem of such crossovers. This problem occurs when the outputs are acoustically or electrically summed. With a filter whose Q is 0.5, the signal is ...