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IFD:Analog Circuits and Interfaces/introduction to electronics (view source)
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* A very powerful concept is the voltage divider, it allows us to attenuate (but not amplify!) any voltage in any circuit | * A very powerful concept is the voltage divider, it allows us to attenuate (but not amplify!) any voltage in any circuit | ||
[http://tinyurl.com/yxhsk8sc voltage divider with even resistors] | [http://tinyurl.com/yxhsk8sc voltage divider with even resistors] | ||
== Amplifiers (and Attenuators) == | |||
* We will use the OpAmp (=operational amplifier) to amplify the small signals from our microphones to usable and less noisy signals before we digitize them in the computer. The opamp (= operational amplifier) is a three port device and its circuit diagram is a triangle. It has a positive and a negative input terminal and an output terminal. The most basic opamp circuit is the "comparator". | * We will use the OpAmp (=operational amplifier) to amplify the small signals from our microphones to usable and less noisy signals before we digitize them in the computer. The opamp (= operational amplifier) is a three port device and its circuit diagram is a triangle. It has a positive and a negative input terminal and an output terminal. The most basic opamp circuit is the "comparator". | ||
[http://tinyurl.com/yxrdh8gx opamp as a comparator] | [http://tinyurl.com/yxrdh8gx opamp as a comparator] | ||