ng Posted June 18, 2005 Report Share Posted June 18, 2005 hi all, can someone give a simple explanation on band pass,bandstop and resoant filters? Thanx for all and any help! Link to comment Share on other sites More sharing options...
marke Posted June 18, 2005 Report Share Posted June 18, 2005 Hello ng A band pass filter will allow information through between a lower frequency and an upper frequency but block frequencies outside this window.A band stop filter does the opposite, it blocks frequncies between a lower and upper frequency.A resonant filter allows one frequency through only. Best regards, Mark Empson | administratorSkype Contact = markempson | phone +64 274 363 067LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | AuCom | Soft Starters Link to comment Share on other sites More sharing options...
ng Posted June 19, 2005 Author Report Share Posted June 19, 2005 Thanku mark Yes i do know that.i was hoping to get the working method.I mean how the capacitor and inductor works.is there a parallel and series confugiration for these type of filters? Link to comment Share on other sites More sharing options...
marke Posted June 19, 2005 Report Share Posted June 19, 2005 Hello ng This is not really something that can be explained in a couple of posts on a forum. It is a complex topic and there are many different configurations depending on the characterisitics required.I would suggest that you need to get hold of a text book on the subject and have a good look at that.The capacitor and inductor have an AC impedance known as the reactance of the component and these influence the characteristics of the filter or circuit.If you have one inductor and one capacitor and the reactances are equal, the circuit will be as resonance and can be used as a resonant filter. -shunt connected for a high impedance or series connected for a low impedance.The reactance of a capacitor is 1/(2 x pi x f x C) and the reactance of an inductor is 2 x pi x f x L Best regards, Mark Empson | administratorSkype Contact = markempson | phone +64 274 363 067LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | AuCom | Soft Starters Link to comment Share on other sites More sharing options...
ng Posted June 20, 2005 Author Report Share Posted June 20, 2005 Okay ,Shall do that.But i hope to get some of my doubts cleared when i am reading...Thanx for ur help and time,Mark. Link to comment Share on other sites More sharing options...
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