Quality factor

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • PeteS in CA
    Badcaps Legend
    • Aug 2005
    • 3578
    • USA, Unsure of Planet

    #1

    Quality factor

    Quality factor
    By Howard Johnson, PhD -- EDN, 12/5/2005
    What matters most in a capacitor depends entirely on how you use it.
    For example, capacitors in the Electra pulsed-power fusion-ignition system
    require a voltage rating of at least 5 million volts, with an incredible
    energy-storage density. Solution? Build a massive coaxial structure and fill
    it with water (Reference 1).

    A 1V switching power supply has vastly different requirements. This design
    needs capacitors with low ESR (equivalent series resistance). Switching
    power designs surge huge currents through the capacitors, back and forth,
    constantly charging them up and down.
    ...
    Specifications having to do with initial tolerance, temperature drift, and
    long-term stability govern the inherent accuracy of your circuits. These
    specifications require stable, accurately machined dielectric materials.
    Properly aged, low-dielectric-constant ceramic materials fit this
    bill.
    This article is a good intro to some of the considerations in choosing different types of caps for different applications.
    PeteS in CA

    Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
    ****************************
    To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
    ****************************

Related Topics

Collapse

  • Document Archive
    HP Z200 Small Form Factor Workstation i5-650 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP Z200 Small Form Factor Workstation can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Z200 Small Form Factor Workstation boardview and Z200 Small Form Factor Workstation schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties...
    09-12-2024, 03:30 PM
  • Document Archive
    HP EliteDesk EliteDesk 800 G2 Small Form Factor PC EliteDesk 800 i5-6500 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP EliteDesk EliteDesk 800 G2 Small Form Factor PC can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the EliteDesk EliteDesk 800 G2 Small Form Factor PC boardview and EliteDesk EliteDesk 800 G2 Small Form Factor PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum....
    09-12-2024, 03:44 PM
  • Document Archive
    HP Z240 Small Form Factor Workstation i7-6700 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP Z240 Small Form Factor Workstation can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Z240 Small Form Factor Workstation boardview and Z240 Small Form Factor Workstation schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties...
    09-12-2024, 03:44 PM
  • Document Archive
    HP EliteDesk EliteDesk 800 G2 Small Form Factor PC EliteDesk 800 i7-6700 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP EliteDesk EliteDesk 800 G2 Small Form Factor PC can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the EliteDesk EliteDesk 800 G2 Small Form Factor PC boardview and EliteDesk EliteDesk 800 G2 Small Form Factor PC schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum....
    09-12-2024, 03:44 PM
  • Document Archive
    HP HP Z230 Small Form Factor Workstation E3-1225V3 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP HP Z230 Small Form Factor Workstation can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the HP Z230 Small Form Factor Workstation boardview and HP Z230 Small Form Factor Workstation schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer...
    09-12-2024, 03:44 PM
  • Loading...
  • No more items.
Working...