Resonance Filters

See Google:

• Resonant Filter

• Optical guided-mode resonance filter (Technology/Intellectual

• [PDF] A new anti-resonance circuit for inverse filtering

Hello Divyesh patel,

Here is a good website that deals with electronics from the basics to somewhat advanced. It makes for some good reading and can answer many questions you might have. Since this sounds like a homework question, this is the most help I will give, but it will put you in the right direction.

http://www.allaboutcircuits.com/

Here are two pages that relate to your questions.

http://www.allaboutcircuits.com/vol_2/chpt_8/1.html
http://www.allaboutcircuits.com/vol_2/chpt_8/6.html

It might also serve your understanding to read up on the other types of filters and how the interaction of R L and/or C, and type of circuit, affect the outcome of the signal.

Good Luck

thanks for a great website.. will be checking it out more

bacause its useful

Hi

thanks to remind that LC filter is useful but can u tell the manner in with it is more effective, more advantageous then other filtering circuits ?????

In traction converters series LC resonance filters are mostly used, can u make any comment on this ???

Best regards

Divyesh patel

thanks to remind that LC filter is useful but can u tell the manner in which it is more effective, more advantage than other filtering circuits ?

Is this your meaning?

first, you should answer the first thread by Abdel Halim Galala. its him who draw the lc filter, not me.

StandardsGuy is also put out the reason in his thread at the 5#.

I say nothing, but a useless word. haha.

Now that you ask, I try to answer a little.

I m not familiar with the traction converter, but I know the lc filter used widely in many circuit as their features. they are used as either signal filter or power filter, btw, which function do the filter use in the traction converter?

I guess it must act as a power filter at end output.

at the side of signal filter, #5 has explained it can either be a band pass or resist, either high pass or lower pass depend on your select parameter and positon it located.

the narrow band make it useful in filter. we can discuss later.

this will take us a whole day to discuss. after this I believe you will become an engineer.

back to converter, u must mean it serves as output.

In fact, either input or output can all find their figures.

at rectifier terminal, it serves as a pi figure filter. or ^--I figure filter. it refuse higher than, for example 5 or 10 hz wave to pass, keep dc output.

is it useful?

at output, it convey very higher frequency wave, say at 20khz, 50k or 100khz etc which is either PM or FM wave into 50or 60hz or 400 hz wave for motor drive.

you can connect them either series or parallel or complex them. with the help of strong iron core, you can get strong enough power output. thats one reason why people have to use this lc filter. although its heavy.

is it useful?

oh, dont forget to vote as a good answer haha

Thanks for ur reply

but the manner in which u have answered is so confusing, so i think ur self is cleared with such type of filtering circuits.

anyways

thanks again

Best regards

you are welcome.

but whats your meaning of ---u have answered is so confusing ?

Does my reply made you more confusing? and you dont know what I was saying?

where? so that I can explain futher more. in order that you can understand as well as others who viist here

Maybe you should test for him. Finish up his school work so he can get good job.

if this confusing him, it only gets harder.

joke

You need to buy some books.

Hi,

Bandpass filters use the principle of resonance to get a very narrow bandpass. For example, for high frequencies a resonant cavity is used as a bandpass filter. In a radio receiver, for example, having a narrow bandpass will allow rejecting a high power station to receive a low level signal at a frequency close to the high power one.

Regards,

S