Ic 555 astable operation for speed control Of d. C motor

195

04:57:02

Change  duty cycle for speed control!!! ===for change duty cyle change The position of conductor of potentiometer........ 
Duty cycle =t on /t off (See lamp) 

published 9 years ago

Benb0456

9 years ago

You short circuited the battery trough the 555

juani_causse

9 years ago

Battery is actually backwarded. You have to connect pins 8 and 4 to the positive. There is no capacitor between pins 6 and 2 and ground, so if you are trying to make an astable 555, it won't work that way. Also LED has no current-limiting resistor

BillyT

9 years ago

I don't know what your background is, but just about every thing that could be done wrong was done in your circuit. Using your circuit components, I have put them into a circuit that works. Draw your circuit on paper and compare it with the changed one. See if you can understand the differences. Watch the circuits that appear on this blog keep on experimenting with the circuits and read up so you can understand how these circuits work. http://everycircuit.com/circuit/4634056020459520

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