Tag Archives: Signal Conditioner

Audio Signal Strength Detector/Converter

Posted on January 10, 2011 by Rust

Below is the schematic diagram of an audio input module. We can produce a DC output voltage that is proportional to the input signal amplitude (the signal strength) using this circuit. One application of this circuit is audio level meter. … Continue reading →

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Logarithmic Light (Photodiode) Sensor Signal Conditioner

Posted on January 6, 2011 by Rust

There are many measurement system that would be more suitable if we use logarithmic scale, especially when we try to mimics human sensory response. Most physical phenomenon that sensible to human’s biological sensor system is wide range in nature. Human … Continue reading →

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Basic Audio Mixer Using Op-Amp

Posted on December 6, 2010 by Rust

Audio mixer is used to mix several audio signal from many channel into one channel, in analog form. The basic requirement of an audio mixer is that the mixed signal is a product of simple addition. When connected to several … Continue reading →

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