In Reply to: Some preliminary results posted by mfc on July 19, 2003 at 10:19:55:
Here are some initial results for the MLJ3281 Sizklai follower
(no compensation) :Square Wave = 1050 Hz. Using 1,3,5,...25,27 harmonic values only.
27th = 28350Hz. Amptitude = 4v peak.
Gibbs phenomena (although present)was very small.
Sine Wave = 5KHz. Amptitude = 1v peak.B+ = +-20v, ILoad = 1.9477 amps, RLoad = 10 ohms
Vbase = 14.6mv.Simulation settings: Step = 100nS, Window = .1second
Driven with a 1V peak sine wave only and measured output(1st column)
Driven with the sine/square wave and measured output (2nd column)
Measured the input profile as well (3rd column)The noise floor on input was about .3nV which represents a
very low noise level.Here are the results:
Harmonic VRef Vout VinFndmntl(dB)0.00 0.00 0.00
2nd -87.50 -87.50 -199.10
3rd -118.33 -118.33 -191.85
4th -133.76 -133.76 -170.75
5th -136.77 -136.76 -185.75
6th -136.42 -136.43 -185.62
7th -135.45 -135.45 -189.63
8th -136.10 -136.10 -193.53
9th -136.62 -136.62 -192.08
10th -135.55 -135.55 -193.76
11th -136.86 -136.84 -188.64
12th -136.72 -136.69 -199.97
13th -135.61 -135.61 -201.50These results are NULL. The square wave is having no influence.
The only real anomaly with the Sziklai is the strong peak at 1Mhz
during a frequency sweep where the output rises from
~1volt to 3volts.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Some Sziklai follower results - mfc 20:06:55 07/21/03 (4)
- More interesting Sziklai follower results - mfc 14:30:42 07/22/03 (0)
- Re: Some Sziklai follower results - Scott Frankland 23:11:02 07/21/03 (2)
- Re: Some Sziklai follower results - mfc 10:12:37 07/22/03 (1)
- Re: Some Sziklai follower results - Scott Frankland 10:36:08 07/22/03 (0)