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EEE Components, PASSIVES

Electrolytic Capacitors

  • Posted by doEEEt Media Group
  • On May 12, 2023
  • 0
The basic idea of electrolytic capacitor types is to maximize the surface area of electrodes and thus increase their capacitance value and capacitance density. Fine pores and cavities created on the electrode (anode) surface are then covered by a dielectric – usually insulator/semiconducting metal oxides. The electrolyte in a liquid/wet, gel or solid form is used as a medium to contact the high surface from the second side and bring it by its electrical conductivity mechanisms to the second electrode (cathode).
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EEE Components, PASSIVES

Aluminum Electrolytic Capacitors

  • Posted by doEEEt Media Group
  • On May 11, 2023
  • 0
The chemically reactive nature of the materials used in aluminum capacitors is problematic on two points: the dielectric layer’s stability and the device’s long-term mechanical integrity. Since the aluminum oxide dielectric layer in these devices is formed through an electrochemical process, it can also be eroded by an electrochemical process simply by reversing the applied voltage. This is why most aluminum capacitors are polarized; the application of voltage with the wrong polarity causes rapid erosion & thinning of the dielectric, resulting in high leakage current and excessive internal heating.
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EEE Components, PASSIVES

Storage Chokes and Power Inductors

  • Posted by doEEEt Media Group
  • On March 7, 2023
  • 0
Inductors, also referred to as coils or sometimes choke, are important passive components along with resistors (R) and capacitors (C). Coils usually refer to wound conductive wires, and among them, those with a single wound wire have in recent years particularly been referred to as inductors.
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EEE Components, PASSIVES

What is magnetism, What is an Inductor?

  • Posted by doEEEt Media Group
  • On March 7, 2023
  • 0
Inductors, also referred to as coils or sometimes choke, are important passive components along with resistors (R) and capacitors (C). Coils usually refer to wound conductive wires, and among them, those with a single wound wire have in recent years particularly been referred to as inductors.
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EEE Components, PASSIVES

Transformer Design impact for EMC

  • Posted by doEEEt Media Group
  • On March 7, 2023
  • 0
This Würth Elektronik webinar look at the transformers impact on conducted and radiated EMI in an application. The presentation look at practical construction techniques of transformer design for EMC potential emissions mitigation.
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COTS components, PASSIVES

Filter Shape Factor and Selectivity

  • Posted by doEEEt Media Group
  • On March 3, 2023
  • 0
The Ideal Filter would have a unit gain (0dB) in its passband and a gain of zero (-infinity dB) in its stop band. Between the pass band and stop band, there would be no indecision and would transition from 0dB to -infinity dB asymptotically.
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