Summary:
Sometimes all we know about a circuit is its transfer function graph. The transfer function might look like the one in Figure 1. How can we design a circuit so that its input-output behavior will match the graph?
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Articles Tagged ‘transfer function’
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How to Design a Circuit from its Transfer Function Graph
Sunday, February 21st, 2010Tags: amplifier, Differential Amplifier, differential amplifier formula, op amp, operational amplifier, transfer function
Categories: Analog Design, Differential Amplifier, Electronic Circuits Examples
How to Derive the Inverting Amplifier Transfer Function
Thursday, November 26th, 2009Summary:
Widely used in Analog Design, the inverting amplifier in Figure 1 has a simple transfer function. What is the proof of this function?
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Tags: amplifier, inverting, op amp, op amp (opamp) formulas, proof, transfer function
Categories: Analog Design, Operational Amplifier Formulas
Derive the Transfer Function of the Common Collector Amplifier with Thevenin’s Theorem
Sunday, October 4th, 2009Summary:
How to Apply Thevenin’s Theorem for Solving Circuits with Dependent Sources.
Besides its use to simplify and calculate currents in electrical circuits, Thevenin’s Theorem is also a great tool that we can use to derive transfer functions. This article will illustrate how to derive the small signal transfer function of the Common-Collector Amplifier with bipolar junction transistors (BJTs).
The circuit is shown in Figure 1. It is also called a repeater, so we expect that the calculated transfer function to be close to unity gain.
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Tags: amplifier, BJT, common-collector, dependent sources, open circuit voltage, proof, Thevenin's Theorem, transfer function, transistor, voltage follower, voltage source
Categories: Analog Design, Thevenin's Theorem, Transistor Circuits
How to Derive the Instrumentation Amplifier Transfer Function
Sunday, August 30th, 2009Summary:
The Instrumentation Amplifier (IA) resembles the differential amplifier, with the main difference that the inputs are buffered by two Op Amps. Besides that, it is designed for low DC offset, low offset drift with temperature, low input bias currents and high common-mode rejection ratio. These qualities make the IA very useful in analog circuit design, in precision applications and in sensor signal processing.
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Tags: differential amplifier, instrumentation amplifier, op amp (opamp) formulas, operational amplifier, proof, transfer function
Categories: Analog Design, Differential Amplifier, Superposition Theorem
How to Derive the Non-Inverting Amplifier Transfer Function
Saturday, August 29th, 2009Summary:
One of the most common amplifiers in Analog Design is the non-inverting amplifier. How do you derive its transfer function?
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Tags: amplifier, non-inverting, op amp (opamp) formulas, operational amplifier, transfer function
Categories: Analog Design, Operational Amplifier Formulas
Useful Operational Amplifier Formulas and Configurations
Sunday, August 23rd, 2009Summary:
A compilation of Op Amp configurations and transfer functions.
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Tags: amplifier, Differential Amplifier, non-inverting, op amp (opamp) formulas, operational amplifier, Summing amplifier, transfer function, voltage follower
Categories: Analog Design, Operational Amplifier Formulas
The Transfer Function of the Non-Inverting Summing Amplifier with “N” Input Signals
Sunday, August 9th, 2009Summary:
In a previous article, How to Derive the Summing Amplifier Transfer Function, I deduced the formula for the non-inverting summing amplifier with two signals in its input. But what if we have 3, 4 or an n number of signals? Can we add them all with one amplifier?
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Tags: amplifier, analog, non-inverting, op amp (opamp) formulas, operational amplifier, proof, Summing amplifier, summing amplifier formula, transfer function
Categories: Analog Design, Operational Amplifier Formulas, Summing amplifier, Superposition Theorem
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