Stair Lighting Timer
Giới thiệu về sách điện tử này
This is a push-to-on, and auto-OFF circuit. User needs to push the button only ones: to turn the light on. The light will turn automatically OFF after some time, since the switching OFF mechanism is timer based. The "push to on" switch is used here; this should be momentarily pushed to turn the light on. When "push to on" switch is pushed, pin-2 gets a negative pulse, and the timer gets triggered. and the IC1 555 output voltage at pin 3 will be high for certain time period, T=1.1RC, energizing the relay and so closing its contact to provide supply to illuminate the lights for that period. At the end of the time period the IC1 555 output voltage at pin 3 will be low, and so de-energizing the relay and so its contact will open cutting the supply and turning off the lamps
The book consists from the following parts:
1. Introduction
2. Circuit components: 555 and 556 Timer Circuits, Relays and Transistors
3. Description of the Project: Main circuit components, circuit description, selection of R and C according to required time period, settings, designed Circuit
4. Conclusion
5. References
Giới thiệu tác giả
I am Dr. Hidaia Mahmood Mohamed Alassouli. I completed my PhD degree in Electrical Engineering from Czech Technical University by February 2003, and my M. Sc. degree in Electrical Engineering from Bahrain University by June 1995. I completed also one study year of most important courses in telecommunication and computer engineering courses in Islamic university in Gaza. So, I covered most important subjects in Electrical Engineering, Computer Engineering and Telecommunications Engineering during my study. My nationality is Palestinian from gaza strip.
I obtained a lot of certified courses in MCSE, SPSS, Cisco (CCNA), A+, Linux.
I worked as Electrical, Telecommunicating and Computer Engineer in a lot of institutions. I worked also as a computer networking administrator.
I had considerable undergraduate teaching experience in several types of courses in many universities. I handled teaching the most important subjects in Electrical and Telecommunication and Computer Engineering.
I could publish a lot of papers a top-tier journals and conference proceedings, besides I published a lot of books in Publishing and Distribution houses.
I wrote a lot of important Arabic articles on online news websites. I also have my own magazine website that I publish on it all my articles: http://www.anticorruption.
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