One-Step Keyboard Reconfiguration Method
1.Hot Key assignments following this same pattern can and should be applied to the Waveform Viewer , Symbol Editor and Netlist Editor windows as well.? Although these may be entered manually
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du.guo@...
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#147606
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Re: Can't see the noise of a white noise generator
#NOISE
Yes. Each time you run it, it will have the same difficulty. -- Regards, Tony
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Tony Casey
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#147605
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Re: Reflected power in RF power supplies
There's really no such thing as "reflected power". Power can only be dissipated. What is reflected is the voltage wave. If you have a 50Vrms voltage source (Rsrc=0) driving a 50¦¸ load through a 50¦¸
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Tony Casey
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#147604
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Re: Q: Power Supply Design user group?
This page has now moved to http://powersimtof.com/Spice.htm
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Frank Wiedmann
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#147603
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Re: Can't see the noise of a white noise generator
#NOISE
I don't think it is included. I found it the hard way when I simulated a full-wave precision rectifier. It works fine in simulation but does not in practice, because the b-e junction goes into zener
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Jerry Lee Marcel
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#147602
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Re: Difference between finding DC point before AC, and pure DC simulation
I have also observed this. The reason is probably that any possible inaccuracies in the DC solution of a .tran analysis will usually disappear during the first few timesteps. For a .ac analysis, on
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Frank Wiedmann
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#147601
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Re: Can't see the noise of a white noise generator
#NOISE
A bit off-beam, that. The reverse-biased B-E junction is a fairly good noise generator, but I expect that reverse breakdown is not included in the model.
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John Woodgate
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#147600
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Re: Can't see the noise of a white noise generator
#NOISE
Is LTspice deterministic? For large simulations that have difficulty converging? -marcel
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mhx@...
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#147599
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Re: Reflected power in RF power supplies
Min, Don't think about lumped vs. continuous circuits as?an either-or.? The continuous view is always correct; the lumped one may be close enough but it does not replace the continuous one. That's
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Andy I
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#147598
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Re: Reflected power in RF power supplies
Thank you very much for all the kind replies. I have uploaded a photo into the album?reflected_power_of_13.56mhz_generator where the key specs of two Advanced Energy RF generators are listed. It says
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minsun@...
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#147597
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Re: Can't see the noise of a white noise generator
#NOISE
Hyu, We should also note here that most transistor SPICE models do not include base-emitter reverse breakdown, which is something your circuit depends on. LTspice has a BJT parameter for B-E reverse
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Andy I
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#147596
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Re: Can't see the noise of a white noise generator
#NOISE
Hyu wondered why a transient simulation doesn't show any random noise. The reason is simple:? SPICE is noise-free in .TRAN analysis.? It always was.? SPICE is deterministic. You can simulate noise
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Andy I
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#147594
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Can't see the noise of a white noise generator
#NOISE
Hello everyone, I uploaded a file called "White noise generator.asc".? The circuit it's from a book. I want to check the level of the noise generated but can't see any. What am I doing wrong? Thanks
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hyu hyu
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#147592
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Re: Square wave into a bridge rectifier (by member "FlightRisk")
Thank you Andy, that makes sense about the nodes and capacitor ground. I would probably have not found that myself. I did try it with real diodes and went back to the ideal diode just to simplify
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FlightRisk
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#147591
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Re: Reflected power in RF power supplies
Min wrote, "What does it mean when it shows 'reflected power' 100W? Can someone kindly explain it?" Not without seeing it. One guess is that 100W is the maximum allowed reflected power that the device
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Andy I
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#147590
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Edited
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Re: Reflected power in RF power supplies
I see 13.56 MHz & think industrial RF heating. The load impedance probably varies with what is being heated. RF power amps prefer a resistive load. When the load becomes complex/reactive (not purely
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murrayatuptown
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#147588
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Re: Reflected power in RF power supplies
I think you need to upload the data sheet as a PDF to Files >Temp, and then tell us you did that. We need to read it in detail to see what those specifications are about. Does the manufacturer expect
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John Woodgate
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#147587
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Re: Reflected power in RF power supplies
I suggest you direct your question the manufacturer Gambetti.
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Jerry Lee Marcel
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#147586
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Reflected power in RF power supplies
Try to understand what 'reflected power' means in a 13.56 MHz RF power supply. The wavelength for 13.56 MHz is more than 20 m. Therefore, I think a 13.56 MHz power generator still falls into the
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minsun@...
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#147585
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Re: Regarding basic simulation of ACST
Hello Andy & Tony, Thanks for your help. Yes 200 ohm was not able to trigger ACST (mV output), increasing that to 1K in high side switching mode made circuit working though simulation time is quite
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Jagdish Karamchandani
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#147584
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