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555 TIMER

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Introduction: It is a IC chip used in vareity of timer,pulse generation and oscillator application. It is one of the cheapest and most rugged chip in the market. It is used to provide accurate and highly stable time delays or an oscillation. It is in widespread use due it's ease of use,low price and stability. It was estimated that 1 billion units are manufactured every year. Depending upon the manufacture the standard 555 package include 25 transistors,2 diodes and 15 resistors on a silicon chip installed in 8-pin mini dual-in-line package(DIP-8). The circuitary inside the chip takes about 10MA even if the o/p is not driving the load i.e it is not suitable for battery operation if the chip is to be powered all the time. This timer bascially operates in one of the two modes either as an Monostable(one shot)or an astable. The chip producing output frequency 1 cycle per second i.e 1HZ is called Oscillator.but below 1HZ is called Timer. The specification of 555 timer is...
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Jackson Brown Jr once Said

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When facing a difficult task, act as though it’s impossible to fail. Remember that overnight success usually takes about fifteen years. Remember that winners do what losers don’t want to do. The importance of winning is not what we get from it, but what we become because of it. Success is getting what you want. Happiness is liking what you get. Spend less time worrying who’s right, more time deciding what’s right. Seek opportunity, not security. A boat in harbor is safe, but in time its bottom will rot out. Never overestimate your power to change others. Never underestimate your power to change yourself. Never cut what can be untied. Live your life as an exclamation, not an explanation. Judge your success by the degree that you’re enjoying peace, health and love. Leave everything a little better than you found it. Learn to listen. Opportunity sometimes knocks very softly. Give people a second chance, but not a third. Don’t waste time grieving over past mistakes. Learn ...
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