Issue 17 - Free-Energy Devices

Now – briefly – scratch the negative terminal
of the battery with other lead of the
electromagnet. Notice what happens. If the
electromagnet and permanent magnet are like
poles, they will repell with a good deal of force.
This is due to the transient current developed
by the initial turning on of the switch. A
capacitor will increase the transient effect. If the
poles are opposite, the electromagnet attracts
the permanent magnet.
This is a low voltage, safe demonstration of how
briefly pulsing an electromagnet can perform
useful work. This is the basic principle of a
permanent magnet / pulsed electromagnet
motor-generator. The rotor consist of
permanent magnets. The stator consist of
electromagnets. During the attractive phase of
the two magnets coming into alignment, the
magnetic flux of the permanent magnet attracts
the soft steel core of the electromagnet. No
power is consumed.
During the repulsive phase, after the magnets
have passed center, a short duration pulse of
high current is delivered to the electromagnet
at the optimum time. The like pole of the
permanent magnet provides half the magnetic
flux for the repulsion phase. The only power
consumed to perform work is for a brief [millisec.]
pulse, each time the magnets are slightly
passed alignment. Most of the work [torque to
the shaft] is done by the permanent magnets. A
conventional electric motor consumes power
constantly. Theory is fine and necessary, but
theory must be confirmed by experimentation.
I am an engineer and a firm believer in scientific
method. If a theory is proposed, then an
experiment that follows the design, build, test
and report procedure confirms whether the
theory works or does not. This experiment is
safe to perform. Please do not try to discharge
a high voltage capacitor or other high voltage
apparatus through the electromagnet unless
you a trained electrician or electrical engineer.
Obviously the greater the voltage, the more the
current. The strength of the electromagnet is
dependent upon the number of turns and the
amperage traveling through the coil.
Rare-earth permanent magnets are 4 times more
powerful than ceramic magnets. If you use a
stronger magnet please be careful – it is not for
kids. Work safely and have fun!
70 New Energy Technologies, Issue #3(18) 2004