Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Equivalent Capacitance01:19

Equivalent Capacitance

2.0K
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
2.0K
Equivalent Capacitance01:19

Equivalent Capacitance

939
From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...
939
Parallel Resonance01:23

Parallel Resonance

856
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
856
Capacitor With A Dielectric01:18

Capacitor With A Dielectric

4.3K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
4.3K
MOS Capacitor01:25

MOS Capacitor

1.8K
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
1.8K
Capacitors01:15

Capacitors

1.3K
Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
1.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Low-Power Electrochromic Displays Based on Electrocatalytic Counter Electrodes and PVDF-HFP Gel Polymer Electrolyte.

Materials (Basel, Switzerland)·2026
Same author

Healthcare-associated infections before and during the pandemic: four-year follow-up.

BMC infectious diseases·2026
Same author

Evaluation of implant primary stability using different drilling protocols: an in vitro study.

BMC oral health·2025
Same author

Electrochromic Devices Based on 2D MoO<sub>3-</sub>/PEDOT:PSS Composite Film with Boosted Ion Transport.

ACS applied materials & interfaces·2024
Same author

Construction of a highly efficient DNA nanotube sensor with peroxide-like activity.

Journal of materials chemistry. B·2023
Same author

From waste carbonated beverages to high performance electrochromic devices: a green and low-cost synthetic method for self-doped metal oxides.

Nanoscale·2023

Related Experiment Video

Updated: Apr 30, 2026

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
11:44

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Published on: August 15, 2014

9.6K

A negative-capacitance equivalent circuit model for parallel-plate capacitive-gap-transduced micromechanical

Mehmet Akgul, Lingqi Wu, Zeying Ren

    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    |May 8, 2014
    PubMed
    Summary

    A new circuit model for micromechanical resonators uses negative capacitance to improve resonance frequency analysis and device performance. This model enhances frequency stability against environmental changes, aiding in the design of filters and oscillators.

    More Related Videos

    Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
    14:42

    Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

    Published on: April 25, 2020

    10.2K
    Scanning-probe Single-electron Capacitance Spectroscopy
    10:53

    Scanning-probe Single-electron Capacitance Spectroscopy

    Published on: July 30, 2013

    12.4K

    Related Experiment Videos

    Last Updated: Apr 30, 2026

    Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
    11:44

    Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

    Published on: August 15, 2014

    9.6K
    Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
    14:42

    Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

    Published on: April 25, 2020

    10.2K
    Scanning-probe Single-electron Capacitance Spectroscopy
    10:53

    Scanning-probe Single-electron Capacitance Spectroscopy

    Published on: July 30, 2013

    12.4K

    Area of Science:

    • Electrical Engineering
    • Mechanical Engineering
    • Materials Science

    Background:

    • Micromechanical resonators are crucial components in various electronic systems.
    • Understanding their resonance frequency dependence on electrical stiffness is key for performance optimization.
    • Existing models may not fully capture complex behaviors or facilitate intuitive circuit design.

    Purpose of the Study:

    • Introduce a novel small-signal equivalent circuit for parallel-plate capacitive-gap-transduced micromechanical resonators.
    • Model the impact of electrical stiffness on resonance frequency using negative capacitance.
    • Enhance circuit analysis and inspire new circuit topologies for improved performance.

    Main Methods:

    • Derived equivalent circuits for radial-contour and wine-glass modes of a micromechanical disk resonator.
    • Employed negative capacitance to represent frequency dependence on electrical stiffness.
    • Validated the model through circuit simulations and comparison with measurements on fabricated devices.

    Main Results:

    • The model accurately predicts the dependence of electrical stiffness on electrode impedances.
    • It provides a visually intuitive understanding of device behavior.
    • Demonstrated up to 4x improvement in frequency stability against DC bias voltage variations in contour-mode disk resonators.

    Conclusions:

    • The new circuit model facilitates easier analysis and design of micromechanical resonator circuits.
    • It highlights current drive as optimal for applications requiring stability against environmental perturbations.
    • The model aids in identifying beneficial circuit design procedures and topologies for filters and oscillators.