Science Fair Project Encyclopedia
Hartley oscillator
The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor (the tank circuit). A Hartley oscillator is therefore a type of inductively coupled variable frequency oscillator.
Hartley oscillators may be series or shunt fed.
Structure:
- One center-tapped inductor
- One tuning capacitor
Advantages:
- Frequency varied using a variable capacitor
- Output amplitude remains constant over the frequency range
- Feedback ratio of tapped inductor remains constant
Disadvantages:
- Harmonic-rich content
- Not suitable for a pure sine wave
See also: Colpitts oscillator | Clapp oscillator | Vackar oscillator | Armstrong oscillator
External links, references, resources
- Integrated Publishing 's Hartley oscillator
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details