Op-amp oscillator circuit - square, triangle, sine waveforms

In summary, the group discusses the construction of an oscillating circuit that can produce various waveforms using high-speed op-amps and general components. They suggest searching for semiconductor manufacturers for triangle wave outputs and using a current source feeding a capacitor for square waveforms. They also remind each other to not give away answers for potential school assignments.
  • #1
louie
10
0
Does anyone know of any good oscillating circuits that are able to produce square, triangle, and sine waveforms (or any combination of these waveforms). The circuit that I'm constructing has to vary in frequency and is limited to using high-speed op-amps and other general components (resistors, caps, etc. - no special IC's).

Thanks in advance
 
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  • #2
Wein Bridge

Search a semiconductor manufacturer like national for the triangle wave outputs, they'll have documentation on using op amps to get it like Linear Brief 23.

I'll let you figure out the square. :)

Cliff
 
  • #3
This sounds suspicously like a school assignment. Just remember that a current souce feeding a capacitor causes a linear ramp voltage to form across the cap. Figure it out from there.
 

1. What is an Op-amp oscillator circuit?

An op-amp oscillator circuit is a type of electronic circuit that uses an operational amplifier (op-amp) to generate a periodic output signal without the need for an external input signal. It can produce different waveforms such as square, triangle, and sine waves.

2. How does an Op-amp oscillator circuit work?

An op-amp oscillator circuit works by using positive feedback to create a loop that amplifies and sustains the output signal. The op-amp acts as a high-gain amplifier and the feedback network determines the frequency and shape of the output waveform.

3. What are the advantages of using an Op-amp oscillator circuit?

An op-amp oscillator circuit has several advantages including low cost, simplicity, and high stability. It also has a wide frequency range and can generate various waveforms with minimal additional components.

4. How do you design an Op-amp oscillator circuit?

To design an op-amp oscillator circuit, you need to determine the desired frequency and waveform, select appropriate components, and calculate the values for the feedback network. You may also need to consider factors such as power supply voltage and stability to ensure proper functioning of the circuit.

5. Can an Op-amp oscillator circuit be used in practical applications?

Yes, an op-amp oscillator circuit has many practical applications such as in audio and radio frequency signal generation, function generators, and electronic musical instruments. It is also commonly used in testing and troubleshooting electronic circuits.

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