Negative Capacitance in Action

Posted by doEEEt Media Group
On August 5, 2024
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For the first time, researchers have imaged negative capacitance at the microscopic level, revealing how it could enhance energy efficiency in electronics. Led by UC Berkeley, the study published in Nature shows that negative capacitance, where voltage and charge change oppositely, can improve voltage and reduce power needs. This breakthrough, confirmed through advanced imaging and modeling, could significantly impact transistors, batteries, and other electronic devices.

EEE Components, PASSIVES

Capacitor Losses (ESR, IMP, DF, Q), Series or Parallel Eq. Circuit?

Posted by doEEEt Media Group
On February 22, 2023
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This article explains capacitor losses (ESR, Impedance IMP, Dissipation Factor DF/ tanδ, Quality FactorQ) as the other basic key parameter of capacitors apart from capacitance, insulation resistance, and DCL leakage current.

COTS components, PASSIVES

Insulation Resistance, DCL Leakage Current and Breakdown Voltage

Posted by doEEEt Media Group
On February 22, 2023
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This article explains some basic parameters of capacitors – insulation resistance, DCL leakage current, and breakdown voltage / withstanding voltage.

EEE Components, PASSIVES

Supercapacitors

Posted by doEEEt Media Group
On December 14, 2022
0

Supercapacitors (or ultracapacitors) are one of the most progressing capacitor technologies in recent years, offering very high DC capacitance and high energy densities. It is proven its reliable and design flexibility to provide a wide range of energy storage solutions from small wearables, industrial applications, and automotive to large energy power network backup systems.