EE3950_Class_Notes_Chapter_8

EE3950_Class_Notes_Chapter_8 - Electronics Elect...

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Electronics Electronics is that branch of science and technology which makes use of the controlled motion of electrons through different media and vacuum. In other ords the se of devices and circuits to words, the use of devices and circuits to control the flow of electric current to chieve some purpose achieve some purpose.
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Electronics These circuits contain: ± Resistors, capacitors, inductors, … ± Electronic devices: diodes, transistors (non-linear devices)… Electronic devices are termed solid state.
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Energy and Power The transfer of power from its generation point to its point of use may be done by using: ± AC – alternating current. ± DC – Direct current. ost electronic circuit require DC as a Most electronic circuit require DC as a source of power in order to operate.
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Analog and Digital Systems Signal–a voltage or current varied over time in order to encode and transmit information. Electronic systems may be classified by ect o c syste s ay be c ass ed by the type of signal they process. nalog. ± Analog. ± Digital.
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Analog Signals Signals that vary continuously with time.
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Analog Systems This systems handle analog signals and ese signals may these signals may be complex or periodic. Note that a complex signal can be shown to be mposed of a composed of a number of sinusoidal signals.
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Sinusoidally Varying Signals v(t) = A sin( ω t + θ ) ± A = amplitude.
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EE3950_Class_Notes_Chapter_8 - Electronics Elect...

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