Will this circuit work, and how much power will I need?

[smpaladin]

This is a depiction of a circuit that I am planning to make.
http://www.geocities.com/smpaladin/maglevcircuit.gif

It is a linear motor; Whenever a magnet is passed over the hall
sensor, it turns on the Power transistor, and therefore turns on the
Electromagnet coil. In the picture, there are only four sets of the
hall sensor/transistor/coil. In the real circuit, I am planning on
having 12 sets of them.

So will this circuit work properly? And how much power will I need?
You would think that the circuit would need a lot of power, but then
you realize that only one set of the hallsensor/transistor/coil will
be turned on at any one time.

Any advice is greatly appreciated.

 

[smpaladin]

"Rheilly Phoull" <Rheilly@bigpong.com> wrote in message news:<2th766F1v9sdiU1@uni-berlin.de>...

"smpaladin" <smpaladin@yahoo.com> wrote in message
news:6753235c.0410171702.de6d3c6@posting.google.com...
This is a depiction of a circuit that I am planning to make.
http://www.geocities.com/smpaladin/maglevcircuit.gif

It is a linear motor; Whenever a magnet is passed over the hall
sensor, it turns on the Power transistor, and therefore turns on the
Electromagnet coil. In the picture, there are only four sets of the
hall sensor/transistor/coil. In the real circuit, I am planning on
having 12 sets of them.

So will this circuit work properly? And how much power will I need?
You would think that the circuit would need a lot of power, but then
you realize that only one set of the hallsensor/transistor/coil will
be turned on at any one time.

Any advice is greatly appreciated.

OK, so all you really want to know is the current for one section. No one
can tell you unless the details of the coil and battery are shown. I.e
battery voltage and details of the coil. Always include that sort of info
when asking this type of question. Also what the device is required to do
usually helps anyone answering.

Each coil consists of 15 ft of magnet wire (i'm not sure what type of
magnet wire, but its slightly thicker than thread) wrapped around a
1/4 inch thick screw. The coil should be strong enough to attract and
get a hold onto a similar sized screw from about 1/4 inch away (That
works with one set of hallsensor/transistor/coil, but the question is
will it work with 10 sets connected to eachother).

The transistors are PNP TIP106, and the hall sensors are PNP 21E.