Qts issues

Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

In Reply to: Which inductors?? posted by sootshe on May 4, 2012 at 22:17:15:

Series R causes attenuation, but it is only a fraction of 1dB as long as it it less than 10% of the driver DCR.

What is more important is that series R raises Qes, which in turn raises Qts, which in turn affects the box size.

Find an online calc that allows you to figure out a new value of Qts with the added DCR of the inductor.

In general:

Do not change inductor DCR on an existing design, the box size will now be less than optimum and the HF attenuation will need to be changed.

On new designs, take into consideration the new Qts and it will not be an issue.

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Follow Ups Full Thread

Topic - Which inductors?? - sootshe 22:17:15 05/04/12 (8)

Qts issues - djk 18:36:09 05/05/12 (2)

RE: Qts issues - sootshe 20:12:48 05/05/12 (1)

RE: Qts issues - pictureguy 10:19:51 05/06/12 (0)

RE: Which inductors?? - Palustris 08:02:29 05/05/12 (1)

RE: Which inductors?? - sootshe 17:23:59 05/05/12 (0)

RE: Which inductors?? - pictureguy 00:29:34 05/05/12 (2)

RE: Which inductors?? - sootshe 00:50:00 05/05/12 (1)

RE: Which inductors?? - pictureguy 12:52:30 05/05/12 (0)

Follow Ups

Qts issues - djk 18:36:09 05/05/12 (2)

RE: Qts issues - sootshe 20:12:48 05/05/12 (1)

RE: Qts issues - pictureguy 10:19:51 05/06/12 (0)

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