How a 555 Timer Works Objectives:

Slides:

Advertisements

Similar presentations

Interfacing Project. Computer Controlled Car Left Headlight – D0 Right Headlight – D1 Left Taillight – D2 Right Taillight – D3.

Advertisements

Assembly Manual Mike Fortney 04/09/2004 CricketSat Receiver.

True or False? The electrons in a circuit move in the same direction as the current. The current through a component is directly proportional to the voltage.

Assembly Manual Mike Fortney 04/02/2006 CricketSat Receiver.

C1C3C2 C4C5C6 U2 R1 D1 DIP Socket Notch U1: 555 Timer IC Dimple Pin 1 Flat Side Up U3: RF Transmitter 5-Volt Regulator.

Janelle Yong SACNAS Community Day October 29, 2011.

The “555 Timer” A quick Intro. What is a Timer? a small chip which generates a constant electrical pulse. Used extensively in electronics The CPU has.

Op-Amp Oscillator. Reading Schematics: Battery What’s this?

You will need the following parts from your kit: 1.Breadboard ohm resistor (brown, black, brown, gold) 3.1 LED (light emitting diode) 4.1 Potentiometer.

Blinking LED Lab David Luong Herrick Chang. Recall Capacitor Flash in disposable camera.

Current, Resistance, and Simple Circuits.  A capacitor is a device used to store electrical energy.  There are two different ways to arrange circuit.

Basic Electrical Circuits Advanced Design Applications Mr. Brooks.

Gate Anode Cathode. You will need the following parts from your kit: 1.Breadboard ohms resistor (red, red, brown, gold) ohms resistor (brown,

Electricity Define Electricity: Electrons: Short Circuit: Current: Battery: Voltage:

REVIEW OF ELECTRICITY IT’S LIKE A LESSON THAT ASSUMES YOU ALREADY LEARNED THIS STUFF!

How To Make A Simple Circuit Speaker By: Brian Thomas, Dan Sampson, Brendan Dempsey, Ryan Boarder, Mikael Adane.

NPN Foundations of Technology NPN © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™ Foundations.

Electronic Products. Objectives Learn what a 555 timer is and what it can be used for Learn how to connect a 555 timer up as a monostable Understand how.

Speaker Foundations of Technology Speaker © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™

Oscillator Foundations of Technology Oscillator © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™

Experiments Day 1 & 2 Resistors, Potentiometers and Photocells.

Experiments Day 1 Resistors.. Electronic Technology Definition: The technology of using small amounts of electricity for controlling, detecting, collecting,

SCR (Silicon-Controlled Rectifier) Foundations of Technology SCR (Silicon-Controlled Rectifier) © 2013 International Technology and Engineering Educators.

RC Circuits. We can use a resistor to slow the charging of the capacitor. -Current now varies with time. -In the very short term, you can treat the capacitor.

Potentiometer Foundations of Technology Potentiometer © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching.

Capacitor Foundations of Technology Capacitor © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™

+ Using Ohm’s Law to Build a Voltage Divider 1. + Learning Objectives Understand and demonstrate the engineering design process Use Ohm's Law as a tool.

How an NPN Transistor Works

Two basic types Ceramic disk Electrolytic Has positive and negative sides Farads – unit of measure (F) Microfarads(uF) and picofarads (pF) Cans have value.

How a Photocell Works.

MOTOR VEHICLE ELECTRIC’S INTRODUCING OHM’S LAW BY PAUL LANE.

Wiring the PIC Robot. Microcontroller Circuit Left Sensor Right Sensor Left Motor Right Motor To PIC Programmer L293D

1 Electrical Fundamentals We need some understanding of electrical fundamentals to do the lab exercises. Electric Circuit Consists of: –Power Source: Battery,

7. Direct Current circuits. 11 Find the currents, which flow in all the wires of the circuit in this figure 12  9 V 6 V b a cd 18 

Objective: 1.You will build a simple circuit - two transistor audio oscillator that will generate an audio tone in a speaker.

Resistors Foundations of Technology Resistors © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™

Introduction to Electronic Circuits Khansaa Almansor.

Intro to Electricity Electricity Definition: Circuit Definition: Three things for a circuit to work:

Diode Foundations of Technology Diode © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™ Foundations.

Photocell Foundations of Technology Photocell © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching and Learning™

Current and Power Calculations Practice Math once again!!!

Class Parts List Breadboard 1 Wire kit 1 Red LEDs 3 Green LEDs 3 Yellow LEDs 1 Photoresistor 1 xPiezo sensor 1 Button 3 Slide button, switch 1 Reed switch.

Continuity tester a handy tool for testing circuits

Circuit Simulation Training

Pulse Detector Ramiro Duarte, Clayton Greenbaum Frank Paynter

Fair Use Building and Research Labs Presents

OHM’S LAW INTRODUCING MOTOR VEHICLE ELECTRIC’S BY PAUL LANE

Circuit Construction Kit Clicker Questions

Circuit Introduction Section 1:

Electronic Education Kits

Electrical Circuits & Ohm’s Law

OHM’S LAW INTRODUCING MOTOR VEHICLE ELECTRIC’S BY PAUL LANE

Circuits Lab Introduction

ASSEMBLING THE TIMER Have the PCB in front of you as shown. Make sure there are no copper tracks showing. This side is called the component side.

OHM’S LAW INTRODUCING MOTOR VEHICLE ELECTRIC’S BY PAUL LANE

FIGURE 6-1 The amount of current flowing into junction point A equals the total amount of current flowing out of the junction.

THERMOMETER PROJECT PCB ASSEMBLY INSTRUCTIONS Ver: 3.21 edutek.ltd.uk.

FIGURE 6-1 The amount of current flowing into junction point A equals the total amount of current flowing out of the junction.

Arduino Part 4 Let there be more light.

How a Speaker Works.

Series Circuit.

How a PNP Transistor Works

How an NPN Transistor Works

Simple Circuit PHet.

CTY SAR FCPS Shawn Lupoli, Elliot Tan

Series Circuits Makeup Lab

Payload 2015 Class 8 By Jeff Dunker 5/22/ Beginner Payload.

Intro to Arduino Part 2 The Breadboard

Presentation transcript:

How a 555 Timer Works Objectives: You will build a simple circuit to observe the operation of a 555 Timer. This dot marks pin 1 555

Take Inventory of your Parts You will need the following parts from your kit: Breadboard 220 ohms resistor 6800 ohms resistor 16K ohms resistor LED 10 uF Capacitor 555 Timer 9 volt battery lead 5 wires 9 volt battery

Use this schematic to construct the experiment. Build the Circuit Use this schematic to construct the experiment. + 6.8K Ohm 9 volts - 7 4 8 220 Ohm 16K Ohm 3 6 2 1 + 10 uF

Your circuit should like one of these. Quick Check Your circuit should like one of these.

Do the Experiment Once you have the circuit complete, attach the battery. You should notice the LED flash. Record your observations. Try changing one or more of the resistors. Do not change the 220 Ohm resistor it is used to protect the LED. Record your observations. Try changing the capacitor. Record your observations. Troubleshooting: If the LED does not flash, check to make sure everything is in correctly. Check the battery. Does it have voltage? Are there any breaks in the circuit? Is the capacitor in correctly? Is it wired correctly? Check to make sure you have the 555 timer in the right way.

In complete sentences, write what you learned about a 555 timer . Observations: What did you learn? In complete sentences, write what you learned about a 555 timer .