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Overunity Machines Forum



optic sensor pulse motor

Started by jasonspinmaster, February 01, 2008, 02:53:35 PM

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jasonspinmaster

February 01, 2008, 02:53:35 PM
i am building a pulse motor and i am using an optic sensor as the trigger. i am using a TIP 120 NPN Darlington transistor, from a 12 volt motor bike battery. i am getting a pulse but a small one. can any one help or does any one of any good but basic circuits. thanks all
jason compson

Groundloop

#1
February 01, 2008, 03:35:27 PM
@Jasonspinmaster,

Attached is a simple circuit that uses a Hall sensor. You can probably use a opto
coupler instead of the Hall device. It is also possible to put a diode bridge over L1 to
harvest back emf power.

Groundloop.

RunningBare

#2
February 01, 2008, 06:15:12 PM
Quote from: jasonspinmaster on February 01, 2008, 02:53:35 PM
i am building a pulse motor and i am using an optic sensor as the trigger. i am using a TIP 120 NPN Darlington transistor, from a 12 volt motor bike battery. i am getting a pulse but a small one. can any one help or does any one of any good but basic circuits. thanks all
jason compson

Need more information, whats the DC resistance of the coil?

hoptoad

#3
February 01, 2008, 10:10:34 PM
Quote from: jasonspinmaster on February 01, 2008, 02:53:35 PM
i am building a pulse motor and i am using an optic sensor as the trigger. i am using a TIP 120 NPN Darlington transistor, from a 12 volt motor bike battery. i am getting a pulse but a small one. can any one help or does any one of any good but basic circuits. thanks all
jason compson
@jasonspinmaster
Try this thread : http://www.overunity.com/index.php/topic,3318.0/topicseen.html

Cheers

jasonspinmaster

#4
February 02, 2008, 06:25:29 AM
the DC resistance of my coil is 003 ohms, i do not know if this sounds right or not. my coil is shaped like an ice cream cone, with a other wire wrapped around the primary coil for the back EMF (not connected )
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