Category Archives: How can AC electricity charge a DC device?

Rectification and smoothing

Explore the use of half and full rectifiers, changing capacitance and load. Downloads: Flash source file (.fla)  Flash (.swf) Mac application (.app) Windows Application (.exe)

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A dozen USB chargers in the lab….

Just when you thought that a charger is a charger – be careful what you plug into an expensive device. http://www.righto.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html (This has a lot of relevance to students studying the Further Electronics detailed study

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Capacitor charging

This animation shows the charge and discharge of a capacitor. You can see how the time taken depends on the resistance & capacitance of the circuit. Use the sliders to change the values of battery voltage, resistance or capacitance. Discharge … Continue reading

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Transformer simulation

This animation shows the operation of a transformer, designed to step voltages up or down for more efficient & safer transfer of energy. The primary & secondary wires are wrapped around a solid iron core. Changing current in the primary … Continue reading

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Rectification & smoothing podcast

An analysis of half-wave & full rectification – a key aspect of the VCE Further Electronics detailed study. Based on the Rectification & smoothing learning object: http://vcephysics.com/rectification-and-smoothing/ Download the video.

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