555 IC TIMER - 20 TOP 555 IC TIMER Questions and Answers...

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20 TOP 555 IC TIMER Questions and Answers pdf engineeringinterviewquestions.com /555-ic-timer-questions-answers-pdf/ 555 IC TIMER Questions and Answers pdf :- 1. Explain what is 555 timer? The 555 times is a highly stable IC that can produce accurate and highly stable time delays or oscillation. The frqeuency of oscillation and duty cycle are accurately controlled by only two external resistors and a capacitor. 2. Explain what do you mean by a grounded load? When the load is connected between the output terminal (pin 3) and grounded terminal (pin 1), it is called grounded load, this is also sometimes called the normally off load. 3. Explain why normally control terminal of 555 timer is connected to ground through a 0.01µF bypass capacitor?
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  • Summer '16
  • tiwari
  • Integrated Circuit, Multivibrator, duty cycle, 555 timer IC, IC TIMER Questions

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