@Callisto here is the image of the circuit

Question

anonymous · Answer

attachment

sidsiddhartha · Answer

so u want control the speed of the motor ?

anonymous · Answer

yeah :o

experimentx · Answer

have made not gate using transistor?

anonymous · Answer

Man I just need some explanation of this circuit cause I've to implement it and show it to my instructor.
I want to know where to give input voltage and where i'd get output voltage direction of currents

anonymous · Answer

it's a common emitter right ?

anonymous · Answer

you must know I am not an electrical engineer I am actually noob at circuits and forced to study this one course :P I am basically software engineer

sidsiddhartha · Answer

the base of the transistor should be connected to a microconroller

experimentx · Answer

this is just switching circuit ... if you turn on on the base then the motor goes off.

anonymous · Answer

without using microcontroller ? @experimentX

experimentx · Answer

where is microcontroller?

anonymous · Answer

sid was saying xD

sidsiddhartha · Answer

i dont see a microcintroller in the picture but it is needed to supply amperes to the motor

experimentx · Answer

there is no microcontroller here ... this is just usual way of constructing a switch using transistor.

experimentx · Answer

http://www.electronics-tutorials.ws/logic/log47.gif

anonymous · Answer

Ah ok @experimentX 
base will be connected to just an input right ?

experimentx · Answer

it is a switch

experimentx · Answer

it will control voltage between collector and ground

anonymous · Answer

|dw:1401003709312:dw|
so when we practically implement it on a board it'll be like this ?