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Andy, The 3Phase_Voltage_Sense_Circuit.asc was the original schematic that simulates properly. Modified that schematic to create 3Phase_Voltage_Sense_Model.asc, which I used to create the netlist and

Hello Connect a ground to neutral in ....test.asc

No more difficult than 1m of coax and 2 gold-plated phono plugs. People still buy them because they hear something on that Alice Cooper LP they didn't hear before. It's probably tinnitus, but don't

There really isn't any point in criticizing the design. It's deliberately weird. An LM386 makes a good headphone amplifier, but it might be difficult to sell for $130.

Yes, it's a circuit that works, somehow. However there are many more efficient and stable ways to bias a MOSFET and to provide voltage to a 6V heater from a 24V source. BTW, source-follower it is not.

Yes, easily. Consider, for example, these two amplifiers: a) Output power 30 W, THD 0.1% b) Output power 35 W, THD 5.2% Which would you buy? They are the same amplifier. Similar games are played with

BTW, I did another run of .TRAN 10m (without UIC or Startup) this time flagging the checkboxes "Noopiter" and "Skip Gmin stepping" under Tools->Control Panel->SPICE (basically it amounts to add the

Still they are publishing specifications that pertain to typical audio performance, such as frequency response and THD. They can't combine both quirkiness and normality. Or can they? Typical "I

I'm not an expert. However I believe the LM317 in "current source" configuration actually fulfills two functions. First it is employed to bias the source of the IRF510 mosfet in common drain (aka

I suspect that the weirdness is intentional. Weird designs have existed from? the earliest day of DIY radio receivers, before 'electronics'? was in the dictionary. I recall a report of a circuit

The symbol file I used was extracted from 74LVC1G.zip. sorry for the typo. Steve

I am now running 24.1.3. I just installed 74LVC1G.lib and used symbols from 74LVC.zip found in the "files" section. As long as I connect the power pin to each symbol to VCC, connect VCC to the logic

It's extremely unlikely. Heater temperature varies extremely slowly compared to audio signals. It could result in distortion at very very low frequencies, definitely out of the audio band. Now this

I apologize, it was just a mistake/misunderstanding from mine. Yes, I can say that the output signal waveform looks pretty good (although its mean/average value changes slightly even after 60

OK -- so the question still remains: Does the output signal look "not good at all", as you claimed earlier? Why do you say it doesn't look good?? What about it does not look good? Admittedly it has

Yes, sorry for the confusion, you are right. The averaged voltages & currents about 60 seconds from the beginning of both .TRAN 60 UIC and .TRAN 60 Startup analysis look right. As you highlighted

That implies that different code is executed after a certain depth. That doesn't sound like the right thing to do. That "recursive" thing has popped up again. Proper recursive sub-routines should, in

Carlo, I am still confused.? Earlier you wrote that your output signal "doesn't look good at all" with .TRAN 60 UIC. Later you wrote that .TRAN 60 Startup "looks good either".? Huh? To me, they look

Hello All: I learned from experience. 24.1 flagged a slew of my user.xxx type .models as bad. And they were; mostly missing spaces between parameters and parenthisis issues. This never happened

Sorry, are you asking whether the audio signal feedback into the heater voltage comes from a design intentional choice ? Actually I don't know since I took it from the schematic of a commercial audio