Week #4 Our first working circuits using surface mount components.
The following page shows a transformation from drawing a circuit out on paper, transferring to board, and soldering on surface mount components. The circuit is 1 steady LED and one variable flashing LED.
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Devlopment stages of circuit.
The circuit must be drawn out on paper first. From here it will be transferred to a circuit board ready for components. |
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Surface mount components
Note the size of the surface mount components compared to the coin as reference.
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Mounting and soldering of components.
Components are mounted using an everyday soldering iron. Notice the fine craftsmanship here!! |
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Soldering process.
In some cases a magnifying glass needs to be used because the parts are so small.
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Finished circuit board
Note the size comparison between the surface mount capacitor and the through hole capacitor. |
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Testing Circuit
Circuits are hooked to a power supply and the speed of the flashing LED can be changed.
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Size comparison
These two circuits do basically the same thing. Note the size difference between the surface mount in front and the through hole in the background. |
