Learn about amplifiers, transfer characteristics, amplifier nonlinearity, and output voltage gain.

Learn about amplifier converts/transfer DC power into the output power, the concept of output gains (voltage, current, and power), and power efficiency, how to design power amplifiers with an example given

Learn how to design a power amplifier, power efficiency, concept of output power, the power dissipated, input power, and DC power.

Learn how to derive amplifier models for the four types of amplifiers. Derive expressions for the gain of these circuits. Learn about dependent sources. Learn about the input and output resistance of these amplifier models.

As an example, we analyse an equivalent circuit model for a current amplifier as shown. We derive an expression for a current gain of the circuit. 

This module explains how to derive an expression for the magnitude and phase response of an RC low pass filter

This modules explains how to derive an expression for the magnitude and phase response of an RC high pass filter

This module explains how to derive an expression for the magnitude and phase response of an RL low pass filter

This module explains how to derive an expression for the magnitude and phase response of an RL high pass filter

Learn the concept of the operational amplifier, gain, differential amplifier, common-mode signal, equivalent model of the op-amp.

Learn how to derive an expression of a voltage gain of an amplifier connected to a source and a load. Learn how to model voltage amplifier through a dependent source and obtain a total response of a gain from source to load

This module explains inverting operational amplifiers and the concept of virtual ground in op-amps.

Learn how an operational amplifier converts input current into output voltage, how to derive an equivalent model of operation amplifier acting as voltage amplifier and current to voltage converter. Evaluate the value of input and output resistance in a feedback configuration.

Learn how ideal opamp properties such as infinite input resistance and infinite open-loop gain can be used to simplify and derive the gain expressions of a feedback noninverting operational amplifier. A summing amplifier or simply adder circuit using opamp is also explained.

Learn how noninverting opamp can be configured as a voltage follower, how the circuit can be used as a buffer to be inserted between the high impedance source and low impedance load.

Learn about the differential gain of the opamp in feedback, how the opamp differential amplifier works.

See how the value of input resistance drops in an attempt to increase the gain of the operational amplifier in a differential configuration.

See how adding input buffers to the operational amplifier will solve the problem of the higher input resistance of a differential amplifier in op-amp

See how simple adjustment in the circuit of instrumentation amplifier solves the problem of common mode signal getting amplified. We retain the same magnitude of gain but cancel the common-mode signal.

Learn how differential amplifier rejects common-mode signal. Learn about the differential and common mode action of the instrumentation amplifiers.

See how the output of the instrumentation amplifier to the common-mode signal is ideally zero

See how an operational amplifier acts to filter the signal at low frequency. Learn to derive the expressions of the magnitude and phase as a function of frequency in the opamp integrator circuit.

See how an operational amplifier acts to filter the signal at high frequency. Learn to derive the expressions of the magnitude and phase as a function of frequency in the opamp differentiator circuit.

See the limitation of the ideal opamp differentiator circuit. Learn to derive the expressions of the magnitude and phase as a function of frequency in the modified opamp differentiator circuit.

See how an operational amplifier acts to filter the signal set by two cut-off frequencies. Learn to derive the expressions of the magnitude and phase as a function of frequency in the modified opamp differentiator circuit.

Learn how to derive an expression of the phase and magnitude of an opamp integrator circuit (ideal response).

See how to derive an expression for magnitude and phase of the output transfer function of a noninverting opamp integrator (low pass filter circuit)

Welcome back to another enlightening session! Join us as we delve deep into the fascinating world of Salen Key filters – a cornerstone in electronic circuit design for signal processing. Originating from the minds of Salin and Key at MIT Lincoln Laboratory, these filters revolutionize electronic system design. In this comprehensive guide, we uncover the essence of Salen Key filters, exploring their unique advantages over traditional approaches like op-amps with RC components. Discover how they're derived from voltage-controlled voltage sources (VCVS), offering unparalleled input impedance and stability. Unlock the secrets of high-order active filters, learn how to implement low-pass, high-pass, and band-pass filters effortlessly. Dive into the intricacies of Salen Key topology, understand its independence from op-amp characteristics, and unleash its potential for high-frequency filter design. Follow our step-by-step tutorial on designing Unity gain low-pass Salen Key filters, and gain insights into setting frequency and quality factor for optimal performance. Learn how simple adjustments in resistor and capacitor ratios can tailor your filter's characteristics with precision.

In this module, we explore the design process of sallen-key filter topology, cut-off frequency and concept of low pass electornics filters . We also understand role of opamps in the design of Filters.

In this video, we explore the fundamentals of the Salen-Key filter topology, a widely used active filter design. Learn how this second-order filter can be configured to create low pass, high pass, and band pass filters using resistor and capacitor combinations.

In this module, we explore the design process of sallen-key filter topology, cut-off frequency and concept of high pass and low pass electornics filters . We also understand role of opamps in the design of filters

Check out the Magic of capacitors to design and development of a 2nd order active Sallen-Key bandpass filter. See the magic of op-amps properties to shape the filter response with the gain offered by Noninverting configuration.

Learn about

Using operational amplifier (op-amp) as a comparator | Pros and cons

An operational amplifier is designed to work with negative feedback op amp’s output stage is designed to work in the linear region Comparators - designed to work in saturation Slew rate Using op-amp as comparator can save on time, cost and board space

Comparator with hysteresis

Comparators designed to drive digital logic circuits from their outputs designed to work at high speed with minimal instability Uses polarity identification, 1-bit analog-to-digital conversion, switch driving, square/triangular-wave generation, and pulse-edge generation

Use amplifier as comparator for low offset and drift, low bias current, cost, and area Do Not use amplifier as comparator for lengthy recovery time from output saturation long propagation delay, the inconvenience of making its output compatible with digital logic, dynamic stability is a concern Amplifiers are slower - internal compensation capacitor Comparators are faster - they do not need an internal compensation capacitor Use amplifier for slowing varying / noisy signals Comparators have relatively large noise and offset In some applications with slowly changing inputs, noise will cause comparator outputs to slew rapidly back and forth

We theoretically analyze the frequency response of an active high pass opamp filter circuit and simulate the small-signal AC response. See the limitation of the ideal high pass filter circuit and how we solve it by modifying the circuit. A simulation using SPICE software is given to understand how the circuit works and how to design them.

See how to derive exact expressions for a magnitude and phase response of an opamp inverting bandpass filter. See how to simulate its response and compare it with the theoretical calculation.

Learn how to derive expressions of series RLC circuit.

Learn how to design it using LTSPICE, simulate and analyse the response.

we dive into the fascinating world of oscillators. Whether it's sine waves, square waves, triangular waves, or sawtooth waves, oscillators play a crucial role in generating these waveforms in electronic systems. In this video, we break down the basics of oscillators, starting from understanding amplifiers to delving into the mechanism behind oscillator operation. Join us as we explore the amplifier's role, the significance of feedback (both negative and positive), and how amplifiers transition into oscillators. Learn how positive feedback transforms an amplifier circuit into an oscillator, generating stable oscillations without any external input. We'll walk you through the theory, block diagrams, and practical examples to demystify oscillators in electronics design. Whether you're a beginner or an electronics enthusiast, this video offers valuable insights into the workings of oscillators.

Lets understand basic concept of a voltage regulator via block diagram. We then explain basic shunt regulator circuit using Zener diode and we also then explain basic series regulator circuit using transistor. we derive an expression for the output regulated voltage and explain some key terms used in the regulator design.

In this module, we go deeper based on the theory we explained in the previous module and then we design a simple series voltage regulator circuit using transistor and Zener diode. We use SPICE simulation program to simulate this circuit and show how we can generate a regulated output voltage.

In this module, we go deeper based on the theory we explained in the previous 2 modules and then we design a simple voltage regulator circuit using transistor and Zener diode, and show how we can generate a regulated output voltage. We support our analysis by means of design equations.