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Wein Bridge Oscillators Circuits

Audio Test Oscillator:

Few Extra Components Stabilize Oscillator: 02/15/96 EDN-Design Ideas

Programmable oscillator uses digital potentiometers: 03/07/2002  EDN - Design Ideas / Digital potentiometers are versatile devices; you can use them in many filtering and waveform-generation applications. This Design Idea describes an oscillator in which setting the resistance of two digital potentiometers independently programs the oscillation amplitude and frequency.

Sine Wave Generator:

The Wien bridge oscillator is reborn: 06/13/2002  EDN - Design Ideas / In 1940, William Hewlett and David Packard launched a product from a garage. The product was a Wien-bridge oscillator. It consisted of a single-pole highpass filter in series with a single-pole lowpass filter. To keep the gain constant, the circuit used an incandescent pilot light to provide AGC (automatic gain control)

Wein Bridge Oscillator keeps THD Below One PPM: 11/10/94 EDN-Design Ideas  / The Wien-bridge sine-wave oscillator uses a light bulb to stabilize its amplitude. The circuit doesn't have a light bulb; it sports several enhancements that lower its distortion and generate a test signal pure enough for testing modern op amps and high-resolution A/D converters.

Wein Bridge Oscillator:

Wein Bridge Theremin:

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