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Resonant Electronic Circuits

Resonant Electronic Circuits. Series and parallel resonant circuits. Capacitor. Inductor. Source: allaboutcircuits,com. Peter Auer. Resonant Electronic Circuits. Inductive and capacitive reactances. Soruce: HyperPhysics. fo. resonant frequency. Glossary : reactance – Blindwiderstand

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Resonant Electronic Circuits

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  1. Resonant Electronic Circuits Series and parallel resonant circuits Capacitor Inductor Source: allaboutcircuits,com Peter Auer

  2. Resonant Electronic Circuits Inductive and capacitive reactances Soruce: HyperPhysics fo resonant frequency Glossary: reactance – Blindwiderstand resonant frequency – Resonanzfrequenz phasor - Zeiger XC: hyperbolic decrease XL: linear increase Source: electronics-tutorials Peter Auer

  3. Impedance Resonant Electronic Circuits Loss (Verlust) Source: HyperPhysics Peter Auer

  4. Resonant Electronic Circuits Circuit quality and bandwidth Quality factor High Q – narrow bandwidth Low Q – wide bandwidth Glossary: quality factor – Gütefaktor bandwidth - Bandbreite Series resonance Peter Auer

  5. Resonant Electronic Circuits Quality factor versus bandwidth in a parallel resonant circuit Bandwidth Source: wikipedia Source: HyperPhysics Peter Auer

  6. Resonant Electronic Circuits • Applications: • Radio receiver and transmitter (amplifier, filter) • RFID tags (Radio Frequency Identification) • Medical therapy equipment Peter Auer

  7. Resonant Electronic Circuits • CLIL-tasks: • Explain the function of a resonant circuit to a fellow student • Explain the impedance versus frequency graphs • Give an instruction for the lab experiment shown in the video • Discuss the effect of the Q-factor on the bandwidth Peter Auer

  8. Resonant Electronic Circuits • Gap filling text • A resonant circuit consists of a …………. and an …………………. • The frequency where XL and XC are equal in magnitude is called ………………… • At the resonant frequency the impedance of a series resonant circuit is …………. • Bandwidth is calculated: ……………….. divided by ……………. • The resonant frequency is determined by values of …………. and ……………… Peter Auer

  9. Resonant Electronic Circuits • Matching exercise • Find a matching pair of expressions: • minimal impedance narrow bandwidth • capacitive reactance series resonance • low Q parallel resonance • maximal impedance increase • inductive reactance wide bandwidth • high Q decrease Peter Auer

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