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Electronic Workshop

Electronic Workshop. Electrical Circuits Dr. Sandra Cruz-Pol Professor Electrical & Computer Engineering UPRM. http://www.whyistheskyblue.org/why-is-the-ocean-blue.html. Once upon a time…. E produces H , and vice versa! E=>H Discovery by professor Oersted’s demo!

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Electronic Workshop

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  1. Electronic Workshop Electrical Circuits Dr. Sandra Cruz-Pol Professor Electrical & Computer Engineering UPRM http://www.whyistheskyblue.org/why-is-the-ocean-blue.html

  2. Once upon a time… E produces H, and vice versa!E=>H Discovery by professor Oersted’s demo! • Can H=>E ? Finally 11 yearslater…YES!!! • Used in generating electricity • First DC –Thomas Edison – not so good • Then AC – Nikola TESLA – GREAT!! • Invented ac motor, radio, design Niagara Falls generator, distribution systems, fluorescence lamps, remote control, wireless, logic circuits, 3 phasic and many modern things.

  3. How a Motor works? • http://www.walter-fendt.de/ph11e/electricmotor.htm

  4. How an electric Generator works? • http://www.wvic.com/how-gen-works.htm

  5. Electrical Circuits • We will take a look at several electricity components & concepts: • Resistors • Capacitors • Series & Parallel Connections • LED • IC… or chips • Batteries • Nodes It most have a closed loop

  6. Meet the Concepts: Resistor Resistors- reduce or resist the flow of electrons

  7. Series ConnectionTry to connect a circuit the one belowusing the color light bulbs provided V= I R

  8. Parallel Connection Elements connect on both legs. I = V / R

  9. What is a Node? How many nodes are in this circuit?

  10. LED • Light emitting diodes (LED) like regular light bulbs but that are actually semiconductors that shine when an electrical current passes through them in a specific direction. • Low Power consumption!  + http://www.kpsec.freeuk.com/components/led.htm

  11. What is a circuit Board? Nodes?

  12. Electronic Doorbell Switch Speaker

  13. Electro-magnet ***Warning!! It can get HOT.

  14. Capacitors Capacitors store electrons http://www.kpsec.freeuk.com/components/led.htm

  15. Electric Circuit

  16. Discharging a capacitor

  17. Charge/discharge Capacitor Piezo-electric material

  18. Chip – (integrated circuits) The 555 timer regulator pin layout (from http://www.doctronics.co.uk/555.htm)

  19. 1k

  20. Myth: Why is the Ocean Blue? FALSE:The ocean is blue because the sky reflection on its surface. TRUE:Water is blue. • frequency spectra • But you need a huge amount of it to really see its color. • Look at a swimming pool as it gets deeper; even on cloudy days. http://ece.uprm.edu/~pol/OceanBlue.html

  21. Myth #2 • FALSE: Thomas Edison, greatest contributor to Electricity and systems used today. • TRUE: Nikola Tesla – greatest contributor to Electricity. • Invented ac motor, • perfected dc motor, • invented radio transmission, (wireless) • designed Niagara Falls generator, • distribution systems, • fluorescence lamps, • remote control, wireless, • logic circuits, • 3 phasic and many others.

  22. Where to find this material? • http://ece.uprm.edu/~pol/outreach.html Also look at: • http://casa.ece.uprm.edu • http://ece.uprm.edu/climmate

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