All About Circuits Forum capacitor size vs frequency
 Register Blogs FAQ Members List Today's Posts Search Today's Posts Mark Forums Read

 General Electronics Chat Discussion forum for general chat about anything electronics related, including asking questions about material in the All About Circuits E-book, Worksheets, and Videos.

#1
08-13-2013, 04:23 PM
 ADI89 New Member Join Date: Aug 2013 Posts: 2
capacitor size vs frequency

How does the size of capacitor depend upon the frequency?
#2
08-13-2013, 04:29 PM

By size do you mean value?
Look into the effect of capacitive reactance.
You might also want to study tuned circuits.
Max.
__________________
"Make everthing as simple as possible, but not simpler"
Albert Einstein.
#3
08-13-2013, 07:01 PM
 wmodavis Senior Member Join Date: Oct 2010 Location: Colorado, USA Posts: 561

The frequency of capacitor size depends on the size of the capacitor and the frequency of the size of the capacitor and may be resonant due to any near by inductors irrespective of its size.
#4
08-13-2013, 07:14 PM
 Papabravo Senior Member Join Date: Feb 2006 Location: Michigan, USA (GMT-5) Posts: 5,786

Quote:
 Originally Posted by ADI89 How does the size of capacitor depend upon the frequency?
If you mean the physical size -- it doesn't.
The working voltage has a major effect because it dictates the thickness and composition of the dielectric. It is also difficult to get a large capacitance in a small volume. So capacitance and working voltage go hand in hand so to speak.

As you increase the frequency the reactance goes down for a given value of capacitance.
__________________
We never have time to do it right,
But we always have time to do it over.
#5
08-13-2013, 07:17 PM
 MrChips Super Moderator Join Date: Oct 2009 Posts: 9,068 Blog Entries: 24

Quote:
 Originally Posted by ADI89 How does the size of capacitor depend upon the frequency?
This is such a vague question that there is no possible correct answer.
You have to elaborate on what you mean to say.
__________________
Most computer problems can be attributed to a simple problem - a loosewire behind the keyboard.

#6
08-13-2013, 10:21 PM
 snowdrifter Junior Member Join Date: Aug 2013 Posts: 43

Gotta be more specific. What will you be using this for? What sort of frequencies are we talking about?

 Tags capacitor, frequency, size

 Related Site Pages Section Title Worksheet Series-parallel combination AC circuits Worksheet Resonance Worksheet Impedance Worksheet Capacitive reactance Worksheet Inductive reactance Textbook Resonant filters : Filters Textbook Low-pass filters : Filters Textbook Resonance in series-parallel circuits : Resonance Textbook Simple parallel (tank circuit) resonance : Resonance Textbook AC capacitor circuits : Reactance And Impedance -- Capacitive

 Similar Threads Thread Thread Starter Forum Replies Last Post syee10 General Electronics Chat 1 03-28-2011 05:43 PM tquiva Homework Help 5 02-26-2011 03:31 PM msoof General Electronics Chat 0 07-21-2008 03:28 AM quicksilver General Electronics Chat 3 07-03-2008 01:04 AM bast General Electronics Chat 16 10-11-2007 03:42 PM

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Electronics Forums     General Electronics Chat     The Projects Forum     Homework Help     Electronics Resources Software, Microcomputing, and Communications Forums     Programmer's Corner     Embedded Systems and Microcontrollers     Computing and Networks     Radio and Communications Circuits and Projects     The Completed Projects Collection Abstract Forums     Math     Physics     General Science All About Circuits Commmunity Forums     Off-Topic     The Flea Market     Feedback and Suggestions

All times are GMT. The time now is 03:30 PM.