Talk:Slew rate

Untitled

Is there a way to calculate the slew rate required to represent a given signal?

To represent an arbitrary signal that has been passed through a given filter? Would this be the maximum slope of an ideal square wave that has been through the filter? — Omegatron 21:55, 17 January 2006 (UTC)

The maximum slew rate of a signal V(t) is the maximum of the absolute value of dV/dt. A theoretical linear filter can always produce an output with a slew rate as fast as you want; a proper phrasing of that question would have to bound the amplitude of the voltage at the output of the filter. 66.30.201.209 01:49, 5 February 2006 (UTC)

So pretend I phrased it properly.  :-) I was operating under the assumption that the filter is not capable of infinite voltage (as implied by the square wave question). — Omegatron 04:42, 5 February 2006 (UTC)

Required slew-rate for a given signal can be determined using a "slew-rate nomograph" [1] Rohitbd 12:30, 8 June 2006 (UTC)

I guess that works. We should at least include one here.

Better yet, we should list the equations and derivation (slope of the transition of a maximum-level square wave filtered to the desired bandwidth?) — Omegatron 18:14, 5 February 2007 (UTC)

definition

I dont agree that 'slew rate' is a non linear effect in amplifiers etc. slew rate limiting is a non linear effect. 'Slew rate' merely describes the maximum time rate of change of a variable (usually some voltage). I intend to amend the page to reflect this. Virtualearth

Not just electronics

I don't think slew rate is even majjorly about electronics. It is the rate of change of slew. We haven't slew acceleration, though, but I think this is a bad definition. Unfortunately in the absence of anything better, it must stay as WP:PRIMARYTOPIC, but I'm inclined to try to DAB it because I don't think it is just about slew as seen on an oscilloscope. Guided radar antennae, for example, or telecoms antennae if they have physical moving motors, have to slew onto target and in doing so the servo motors etc have a slew rate that is purely a physical measure (angle over time) and nothing to do with this in the electronics sense. (and beamforming often uses a combination of the two.) So I think this term is genuinely ambiguous. Obviously it is PRIMARY for now, but I would like there to be maybe a DAB if I can find other articles that mention it. I'm won't to forget to I thought it best to post here as a memorandum ipset. Si Trew (talk) 20:50, 20 February 2015 (UTC)

Error/confusion found in text

• Specific text to be added to or edited: "where Vout(t) is the output produced by the of amplifier as a function of time t."
• Reason for the change: Typo/Missing Information/Grammatical mistake
• References supporting change: "by the of amplifier as" makes no obvious sense. Could it be referring to 'operating frequency'? It is extremely unclear.

AndrewJRigg (talk) 15:35, 11 August 2022 (UTC)

 Done I've reverted the typo that was introduced here Ptrnext (talk) 07:18, 12 August 2022 (UTC)