6
Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01 ١

(03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

  • Upload
    dotuyen

  • View
    228

  • Download
    0

Embed Size (px)

Citation preview

Page 1: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

Lecture (03)Building simple Monostableusing 555 IC

By:Dr. Ahmed ElShafee

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01١

Page 2: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

• In this mode, the timer generates a fixed pulse whenever the trigger voltage falls below Vcc/3. When the trigger pulse voltage applied to the #2 pin falls below Vcc/3 while the timer output is low, the timer's internal flip‐flop turns the discharging Transistor off and causes the timer output to become high by charging the external capacitor C1and setting the flip‐flop output at the same time.

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01٢

Page 3: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01٣

Page 4: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01٤

The periodT = 1.1 x Rt x Ct

Page 5: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01٥

Page 6: (03) Building simple Monostable using 555 ICdraelshafee.net/Fall2017/practical-app.-ee-01---lecture...Lecture (03) Building simple Monostable using 555 IC By: Dr. Ahmed ElShafee ١

Thanks,..See you next week (ISA),…

Dr. Ahmed ElShafee, ACU : Fall 2017, Practical App. EE 01٦