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555 IC 50 Circuits Download PDF

Download 555 IC 50 Circuits PDF
555 IC 50 Circuits Download PDF
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555 IC 50 Circuits PDF

About Of The Book :

This e-book covers 555 words. The 555 is everywhere and it is one of the cheapest and most-rugged chips on the market. It comes as a TTL 555 and will operate from 4v to about 16-18v. It costs from 20 cents (eBay) to $1.20 depending on the quantity and distributor. The circuitry inside the chip takes about 10mA - even when the output is not driving a load. This means it is not suitable for battery operation if the chip is to be powered ALL THE TIME. The 555 is also available as a CMOS chip (ICM7555 or ICL7555 or TLC555) and will operate from 2v to 18v and takes 60uA when the circuitry inside the chip is powered. The "7555" costs from 60 cents (eBay) to $2.00 We call the TTL version "555" and the CMOS version "7555." This is called ELECTRONICS JARGON. The 555 comes as a single timer in an 8-pin package or a dual timer (556) in a 14-pin package. The 7555 comes as a single timer in an 8-pin package or a dual timer (7556) in a 14-pin package. The 555 and 7555 are called TIMERS or Timer Chips. They contain about 28 transistors and the only extra components you need are called TIMING COMPONENTS. This is an external resistor and capacitor. When a capacitor is connected to a voltage, it takes a period of time to charge. If a resistor is placed in series with the capacitor, the timing will increase. The chip detects the rising and falling voltage on the capacitor. When the voltage on the capacitor is 2/3 of the supply the output goes LOW and when the voltage falls to 1/3, the output goes HIGH. We can also do other things with the chip such as "freezing" or halting its operation or allowing it to produce a single HIGH-LOW on the output pin. This is called a "ONESHOT" or MONOSTABLE OPERATION. When the chip produces an output frequency above 1 cycle per second, (1Hz), the circuit is called an OSCILLATOR and below one cycle per second, it is called a TIMER. But the chip should not be called a "555 Timer," as it has so many applications. That's why we call it a "555." (triple 5) Another thing you have to be aware of is the voltage on output pin 3. It is about 1-2v LESS THAN rail voltage and does not go to 0v (about 0.7v for 10mA and up to 1900mV for 200mA sinking current). For instance, to get an output swing of 10v you will need a 12.6v supply. In "electronic terms" the 555 has very poor sinking and sourcing capabilities. 

Contents Of The Book :

Active High Trigger
Active Low Trigger
Alarm Sounds (4 sounds)
Amplifier using 555
Animated Display
Audio Frequency Meter
Automatic Curtain Closer
Astable Multivibrator
Battery Charger
Bi-Coloured LED
Bike Turning Signal 
Bi-Polar LED Driver
Bi-Stable 555
Building the Circuits
Capacitor Charge Pump 
Car Lights Flasher - warning flasher
Car Tachometer
Charge Pump 
Clark Zapper
Clicks Uneven 
Calculator 555 7555
CMOS 555
Constant Current
Continuity Tester
Curtain Closer
Dark Detector
Dog-Bark Stopper
Dice to 7-Segment Display
Display - Animated
Divide by 2
Driving A Bi-Coloured LED
Driving A Relay
Driving White LEDs
Music Box
Negative Voltage
Normally Closed Trigger
One-Shot 555
Police Lights 1,2,3
Police Siren
Powering A Project
Pulse Extender
Pulser - 74c14
Push Pull
Push-Pull - high current
PWM Controller - FET buffer
PWM - transistor buffer
see also Motor PWM
Railroad Lights (flashing)
Railway Time
Rain Alarm
Ramp Generator
Reaction Timer Game
Replacing 556 with two 555's
Replacing TTL 555 with CMOS 555
Resistor Colour Codes
Reversing A Motor 
Schmitt Trigger
Screamer Siren - Light Controlled
Servo Controller
Servo Tester
Simplest 555 Oscillator
Sinewave Output
Siren 100dB
Solar Tracker - not suitable for 555
Square Wave Oscillator
Duty Cycle 1:1 (50%)
Fading LED
Fastest 555 Oscillator
Flashing Indicators
Flashing Railroad Lights
Flip Flop see also Toggle
Four Alarm Sounds
Frequency Divider
Frequency Meter 
Function of each 555 pin 
H-Bridge Push-Pull - high current
H-Bridge with PWM
Headlight Flasher - faulty circuit
Headlight Selector
Hee Haw Siren
Higher Sinking Current
High Frequency 555 Oscillator
How to use the 555
Improving the output of a 555
Increasing Sinking Current
Increasing Output Push-Pull Current
Inverter 12v to 240v
Inside the 555
Jammer for TV
Kitt Scanner
Knight Rider
Laser Ray Sound
Latch - using transistors
LED Dice
LED Dimmer
Light Controlled Screamer Siren
Light Detector
Lights - Traffic Lights
LMC555 CMOS 555
Low Frequency 555 Oscillator 
Low Power 555
Machine Gun 
Mark-Space Ratio
Memory Cell see also Toggle Flip Flop
Mercury Switch Detector - faulty circuit
Metal Detector 
Missing Pulse Detector - faulty circuit
Model Railway Time 
Monostable 555
Morse Keyer
Mosquito Repeller
Motor Controller (stepper Motor)
Motor PWM
Stepper Motor Controller
Stun Gun
Substituting a 555 - Part 1
Substituting a 555 - Part 2
Supply (170v) for Nixie Tubes
Switch Debounce
TE555-1 Stepper Motor Controller
Ticking Bomb
Tilt Switch
Toggle 555 see also Flip Flop
Touch Switch
Touch ON-OFF
Toy Organ 
Traffic Lights
Traffic Lights - 4 way 
Transistor Tester
Trigger Timer - 74c14
Turning Signal
TV Remote Control Jammer
Useless Machine
Uneven Clicks 
Up/Down Fading LED
Using the 555
Voltage Doubler
Voltage Inverter
Voltage Multiplier x10times
Warning Flasher - car lights flasher
Water Level Detector
Wailing Siren
Zapper (Dr Clark)
Zapper - Voltage Multiplier 
Zener Diode Tester
2 Minute Timer - 74c14
3x3x3 Cube
4 Alarm Sounds
4 way Traffic Lights
1-10 Minute Auto Turn Off
10 Minute Timer - 74c14
12v DC to 12v DC Battery Charger
12v to 240v Inverter
50% Duty Cycle
100dB Siren
170v Supply for Nixie Tubes
555's - a list of substitutes
555 Amplifier
555 CMOS version LMC555
555 Kit of Components
555 Pinout
555 Pins - Remembering the pins
555 Mistakes (No-No's)
555 on 24v
Multivibrator - Astable
555 Timer Calculator
555 VCO
556 Dual Timer 
7555 CMOS Calculato

Information Of the Book:

Title: 555 IC 50 Circuits Download PDF
Language: English.
Size: 1.3 Mb
Pages: 89
Year: 2011
Format: PDF
Author:  Simon Monk