Electrical and Electronics 10, Electrical 20, 30, Electronics 20, A30, B30
ELEC32B
Module 32B: Tuned Circuits and Oscillators B (Optional)
Outcome
Examine the role of impedance, resonant frequency, bandwidth and oscillators in tuned circuits.
Indicators
| (a) | Compare impedance in alternating current circuits with resistance in direct current circuits. |
| (b) | Determine the impedance of circuits. |
| (c) | Determine the phase angle in series and parallel resistor-inductor-capacitor (RLC) circuits. |
| (d) | Explain how series and parallel resonance occur in circuits. |
| (e) | Determine the resonant frequency of inductor-capacitor (LC) or RLC circuits. |
| (f) | Determine the value of the capacitor and the inductor required for resonance in LC circuits. |
| (g) | Describe factors affecting the Q and bandwidth of a resonant circuit. |
| (h) | Determine the bandwidth of resonant circuits. |
| (i) | Draw a typical resonance curve for both series and parallel resonant circuits. |
| (j) | Draw circuit diagrams and explain the operation of band-pass, band-stop, low-pass and high-pass filters. |
| (k) | Describe the conditions required for oscillation in circuits. |
| (l) | Identify LC oscillators in circuits. |
| (m) | Construct and analyze the effect of common (e.g., Hartley and Colpitts) LC oscillators on the resonant frequency of the circuit. |
| (n) | Construct and analyze the operation of a crystal oscillator circuit. |
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