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www.play-hookey.com | Fri, 12-06-2019 |
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Direct Current
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Alternating Current
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Semiconductors
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Digital
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Logic Families
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Digital Experiments
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Computers
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| Analog | Analog Experiments | Oscillators | Optics | HTML Test | |
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The Basics
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Variations in Feedback Circuits
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Mixing Analog and Digital Technologies
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Generating Waveforms
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| Operational Amplifiers | Current Mirrors | Differential Amplifiers | |
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| A Square Wave Generator | A Triangle Wave Generator | A Sine Wave Generator | |
Analog Circuits: Waveform Generators |
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Op amps are not limited to use within an analog computer. In fact, they can be effectively used in a wide range of circuits and applications. In these pages, we will see a few of the very many ways op amps can be used to generate various waveforms. Once we have these signals, they in turn can be used for a wide range of purposes, ranging from circuit testing to music synthesis.
It's easy to drive an op amp's output to either voltage limit. Making it change to the other limit takes a few extra components.
It's also easy to get an exponential charging voltage on a capacitor. Can we somehow make it linear instead?
A sine wave is a bit more difficult, since the op amp output cannot be allowed to reach saturation. Then again, maybe it's not really all that hard to do.
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