Skin and Proximity Losses as Key Impact Factors of Transformer and Inductor Winding Losses

Posted by doEEEt Media Group
On July 7, 2023
0

Skin losses, also known as skin effect losses, are an important aspect of winding losses in Transformers and Inductors. When the alternating current flows through the wire, it tends to concentrate more on the outer surface due to the skin effect. This results in an underutilization of the inner part of the wire, that leads to energy losses. The current prefers the outer layers of the wire, leaving the inner layers unused.

EEE Components, PASSIVES, SPECIFICATIONS / QPLs

Issue 233 (December 2022) of ESCC QUALIFIED PART LIST (QPL)

Posted by Emilio Cano García
On February 27, 2023
0

The changes in issue 232 of ESCC QUALIFIED PART LIST (QPL) are included in the DCR 1537 and detailed here in this post

EEE Components, PASSIVES, SPECIFICATIONS / QPLs

Issue 228 of ESCC QUALIFIED PART LIST (QPL)

Posted by Emilio Cano García
On July 12, 2022
0

The changes in issue 227 of ESCC QUALIFIED PART LIST (QPL) are included in the DCR 1509 and detailed here in this post

EEE Components, PASSIVES

Current flow measurement using precision resistors, makes a lot of sense!

Posted by Javier Alejandro de la Ossa Fernández
On January 10, 2022
0

Current-sensing techniques are intrusive, meaning that somehow they will affect the system performance. It’s usually necessary to insert “something” in the middle of the path that goes from the power source to the load through which the current that we need to monitor flows.

EEE Components, PASSIVES

4 terminal current sense resistors in parallel configuration

Posted by Emilio Cano García
On December 23, 2021
0

Resistor engineers designed to mitigate these losses must use current sensor resistors with low resistive values. This is the greatest complexity of this method, choosing the better resistor to obtain a balance between precision, energy loss, and costs in the current sensor

EEE Components, PASSIVES

Aluminum Foil Production Costs Rising on Strict Emissions Rules in China

Posted by doEEEt Media Group
On November 5, 2021
0

Aluminum foil plants in China will face mounting production costs and increasing difficulty in capacity expansions as the country is enforcing strict carbon emission regulations, prompting capacitors makers to secure supply of the material by contributing investment funds or equipment for dedicated capacity, according to industry sources.

EEE Components, PASSIVES

High-Temperature Applications Resistor Guidelines

Posted by doEEEt Media Group
On May 5, 2021
0

Resistors have traditionally been manufactured by a variety of methods and technologies, including metal and metal-oxide film, metal foil, carbon, wirewound, and thick-film methods. Each has specific characteristics that make them more or less suitable for high-temperature applications. Resistor degradation at a high temperature can vary from a small resistance change over time to a catastrophic change in resistance, exhibited by either becoming open circuit or, in some cases, a short circuit.

EEE Components, PASSIVES

New Method of Graphene Manufacturing at Scale

Posted by doEEEt Media Group
On December 8, 2020
0

The hyperbole has seen graphene grandiosely described as a wonder material that is going to find transformative applications across the electronics sector.

EEE Components, PASSIVES

New Surface Mount Resistors Leverage Metal Foil on Ceramic Technology for Enhanced Reliability

Posted by doEEEt Media Group
On November 23, 2020
0

The MFC series uses metal foil on ceramic technology, which combines the heat spreading properties of a ceramic substrate with the surge tolerance of a bulk metal alloy resistance element. This, in turn, offers better surge tolerance than thick-film options and lower self-heating levels than thick-film or metal strip resistors, well-suited for automotive, industrial, and medical applications.

ACTIVES, EEE Components, PASSIVES, SPECIFICATIONS / QPLs

Issue 210 of ESCC QUALIFIED PART LIST (QPL)

Posted by Emilio Cano García
On October 7, 2020
0

The changes in issue 210 of ESCC QUALIFIED PART LIST (QPL) are included in the DCR 1379 and detailed herein below:

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