开云体育

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

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

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

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

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

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

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

I suggest you direct your question the manufacturer Gambetti.

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

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

Fred, Because the file you uploaded mentions "inrush current"? -- Note that the inrush current (and the time to charge the capacitor) depend on what diodes you use for D1-D4.? With the default diode

Remember to discuss QSPICE in the QSPICE ( /g/qspice ) group, not the LTspice group. Andy

FYI I just tried downloading the released version of QSPICE. I have Avast anti-virus. It gave me the following fail message: "Threat secured. We've moved xbx0.0 to your quarantine because it was

Hi Mike Thank you and your buds for making this happen Looking forward to trying it Is it wineable? If not, then when possibly? -- AC2CL I do not think there is any thrill that can go through the

Dear Group, Today is the day.? My new simulator, formerly called S·P·Q·R, released today as QSPICE. It's been three and a half years of development.? It started out as a mission to get SPICE

Hi. Ltspice comes with : -linear inductors (no saturation) -Non linear inductors (arbitrary magnetic flux definition in the form Flux=function() ) Input Flux= in the inductance line? of the inductor.

Hello Tony, Thanks for pointing these errors. yes, I read the advisory of 20us in top of model file. I will try yours & Andy's updated library again & let you know the results. jagdish

Yes, correct gate is auto biased for full AC signal (no phase control) & just switching mains voltage to load ON/ OFF which is main function of ACST rather than phase control. jagdish

Yes, ACST device is bit different from Triac. It is specific AC switch just used to ON/OFF mains supplies to load.? Some more information about that,

Hello Andy, I will take care of no uploading RAW or LOG or . NET files. Also I am aware of fixing time step too small errors, thanks for providing the document again. However, my basic idea here was