Pulsed DC Transformer with Embedded Magnets

[ltseung888]

Workshop Slide 4

Use the Scope or the multimeter to determine the wire pair.  This step must be done correctly.  In the "Make a Joule Thief" tutorial, two different color wires were used.  In our case, we need to do this additional step.

This is the basic Joule Thief Toroid.  With mass-production, we need to ensure the quality of the toroids, the winding tightness, the copper wires etc.  With the hand-built method, we may be able to adjust (or tune) to get the good results.  That will be the fun part!

[ltseung888]

Workshop Slide 5

Learn to use the breadboard and the components to build the required circuit.  Read the "make a joule thief" tutorial again to make sure that you understand the circuit.

The exact position of where to insert the component parts is not important at this point.  You can play around to get a good feel.  We shall take all the components out again to add the transformer winding and other components.

If you have not used the breadboard before and managed to get the circuit built correctly, congratulate yourself.  Take a break.

[XS-NRG]

Clown this is a toy for 8 year olds.

[ltseung888]

Workshop Slide 6

God works miracles.  Insults can be turned into inspirations.

The basic Joule Thief circuit built so far will be preserved as a teaching model.  Students can examine it or even unplug the wires and reconnect them.  That can help to build their confidence before they build their own Basic Joule Thief.

The unplugging and reconnecting will be a good exercise in using the breadboard.  This skill will be needed in the tuning later on.

[chrisC]

Workshop Slide 6

"One potential sponsor has a 8 year old daughter who wants to learn electronics from me".

Oh no! Poor girl. She'll exhibit delusional symptoms before she's 12!
Now she'll won't be able to tell the difference between a dalmatian and a panda.

cheers
chrisC