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Related Concept Videos

Equivalent Circuits for Practical Transformers01:28

Equivalent Circuits for Practical Transformers

The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The winding...
Norton Equivalent Circuits01:16

Norton Equivalent Circuits

Norton's theorem is a fundamental concept in the field of electrical engineering that allows for the simplification of complex AC circuits. The theorem states that any two-terminal linear network can be replaced with an equivalent circuit that consists of an impedance, which is parallel with a constant current source. Figure 1 shows the AC circuit portioned into two parts: Circuit A and Circuit B, while Figure 2 depicts the circuit obtained by replacing Circuit A by its Norton equivalent...
Parallel RLC Circuits01:14

Parallel RLC Circuits

Street lamps equipped with RLC surge protectors are an excellent example of applying circuit analysis in practical scenarios. These surge protectors safeguard the lamp's components against sudden voltage spikes.
A simplified parallel RLC circuit model with a DC input source generating a step response is employed in this context. When the switch is turned on, Kirchhoff's current law is applied, leading to a second-order differential equation.
Equivalent Resistance01:16

Equivalent Resistance

In circuit analysis, situations often arise where resistors are neither in series nor parallel configurations. To tackle such scenarios, three-terminal equivalent networks like the wye (Y) (Figure 1 (a)) or tee (T) and delta (Δ) (Figure 1 (b)) or pi (π) networks come into play. These networks offer versatile solutions and are frequently encountered in various applications, including three-phase electrical systems, electrical filters, and matching networks.
Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
Clipper Circuit01:18

Clipper Circuit

A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...

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A Stable Phantom Material for Optical and Acoustic Imaging
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Published on: June 16, 2023

Equivalent circuit for broadband underwater transducers.

R Ramesh, D D Ebenezer

    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    |November 7, 2008
    PubMed
    Summary

    This study introduces a new method to find equivalent circuits for broadband transducers with two resonances. This technique accurately models transducer electrical behavior for better filter design.

    Area of Science:

    • Electrical Engineering
    • Acoustics
    • Transducer Technology

    Background:

    • Broadband transducers are crucial components in various electronic systems.
    • Accurate equivalent circuit models are essential for effective transducer design and system integration.
    • Existing methods may not fully capture the behavior of transducers with multiple resonances.

    Purpose of the Study:

    • To present a novel method for determining the equivalent circuits of broadband transducers featuring two resonances.
    • To enable precise modeling of transducer electrical characteristics within the operational frequency band.
    • To facilitate the design of impedance-matching filters for transducers and driving power amplifiers.

    Main Methods:

    • Developed a method to derive equivalent circuit parameters for broadband transducers with two resonances.

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  • Employed least-squares fitting to refine circuit parameters using measured electrical conductance data.
  • Calculated conductance and susceptance from the derived equivalent circuits.

    • Main Results:

    • Successfully computed the conductance and susceptance for the equivalent circuits of three distinct broadband transducer types.
    • Demonstrated strong agreement between the computed circuit parameters and measured transducer values.
    • Validated the efficacy of the proposed method in accurately modeling transducer behavior.

    Conclusions:

    • The presented method provides an effective means to determine equivalent circuits for broadband transducers with two resonances.
    • Accurate equivalent circuit models are vital for the design of efficient impedance-matching filters.
    • This work contributes to improved transducer performance and system-level integration in electronic applications.