So, whether we have N separate rings or a single shorted coil, the net result is same. So the equation for current remains unchanged:Īgain the mechanical force is proportional to current and length, with the same proportionality constant as before (rest of the system is unchanged): So both EMF and the resistance gets multiplied by N.
#BLAUPUNKT AMP SERIES#
Now consider a proper VC, where N turns are connected in series and shorted at two ends. If there are N such completely independent, insulated turns, the net force simply gets multiplied by N: That means R=0 is infinite damping, R=infinity is no damping. The mechanical opposite force is proportional to this current and the length, so: Let us say one turn has resistance R, then current is: OK, so let us come back to mathematical equation (no I am not going into differential equations.as if I know them ). If it was a non-conducting material, the EMF would make no difference at all. This implies another point that you are missing- this current obviously depends upon the resistance, so resistance is important. The opposite force is nothing but the concerned damping. There needs to be resulting current for the opposite mechanical force to be produced. You are missing one important point- damping is not merely caused by this EMF. electro-motive force that gets generated (not to be confused with the mechanical "force", it is a voltage). The equation mentioned by you gives the EMF, i.e. In fact I was essentially getting at what you said:ĭerAlte, as clip said in the other thread, it is turning out to be an exercise for brain which has been idle off late.let me try to explain. Now, do you think that damping of aluminum former is "negligible" as compared to the copper "former"? But note that its damping effect would not change (of course in this case it will be always shorted, no case of being "open"). If the VC didn't have any insulation between its turns, it would be just like another copper former. In case of VC, we have to short two ends because otherwise there won't be any path for induced current to flow since the coil turns are insulated.
There is no EMF along the length, so whether you consider former as a whole or split into N number of separate rings shouldn't really matter. The amount of this current will depend upon the resistance, and I used "current carrying capacity" synonymously as "low resistance". conductivity of aluminum is lesser than copper, but not negligible (this is a fact, I am sure )ĭamping is going to be caused by the induced current, which will flow along circular paths perpendicular to the length of the former (just like coil turns). their geometries are comparable, one is not negligible as compared to the other in terms of length, diameter, longitudinal cross section (this should include all turns in case of VC).ģ. former and VC are traversing in the same magnetic field, no difference.Ģ. I had following in my mind when I said that (presumptions)-ġ. I was just trying to make it more apparent that the electro-magnetic damping caused by aluminum former may NOT be negligible as compared to that caused by the (shorted) voice coil. * Power is quoted at a certain distortion level, and is always less than the peak theoretical power capability of the output stage (it ceases to be music at that level )ĭerAlte, regarding the effect of former, what are you trying to convey? 0 < amp o/p voltage < supply voltage to final power section. At other times, it is proportional to the signal, i.e. * Voltage is double at saturation only, i.e. The actual current is proportional to d(of something or the other)/dt The L matters more, 'cos R will not provide motive force to the voice coil - it is an incidental physical property which caps the current that CAN flow through the coil when a voltage is applied. * It is Impedance, not resistance, that the power is being pushed through, so R would be too much of a simplification. in theory you get 4 times the power output than from a individual channel.īut like LBM has mentioned but in this world nothing is perfect definitely nothing is perfect in this world.
P = 4 P0 where P0 is the initial power output.
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