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There are a whole lot of issues with the model library and the ACST symbol. The various subcircuits in the library have conflicting pin orders. You have called the called the model ACST310-8FP, which

jagdisk, (Oops!) jagdish, OK, you might have connected the pins correctly.? I am accustomed to seeing schematics drawn where the signal flow is from left-to-right, but I think you drew it somewhat

jagdish, I did not actually look at your schematic until now. Apparently the ACST device is some sort of passive thyristor device, right? (If so, consider using LTspice's built-in TRIAC symbol instead

2 layer board, 24V, switching power brick in "hiccup mode" and PCB on fire. The designer didn't use ground planes (which would have dissipated the heat) because his crap pcb software makes ground

jagdish uploaded "ACST_Files.zip". There are a number of problems here. First of all, please DO NOT upload any of the .RAW or .LOG or .NET (LTspice output) files.? They are not needed.? If we have

It is possible (but maybe unlikely) that 'mliccione89' does not need this TIA to be linear.? Maybe all she/he wants to do, is to detect and observe pulses, in which case it might be OK that it is

Great story :) Arcs don't need 138kV btw - I had an automotive 6-layer PCB with just 12V (at about 1000A, car battery) that got wet, formed a cathodic short (took 6 hours), then struck an arc.? The

...changing the feedback *capacitor* to 5p6 seemed to be about the optimum -- Regards, Tony

Next, you have defined a -2.5V supply (Vn), but *not* used it. -- Regards, Tony

This schematic does not run, as uploaded. Andy explained why (.options lines split up). The "+" character at the start of a line, tells LTspice to append this line to the previous one. When these are

Hello All Richard Andrews wrote: The spark plug in a spark-ignition engine has a gap of about 0.020 inches, and the voltage required to initiate a spark across this gap is about 20,000 volts. The

Hello, I am trying to make overvoltage switch using ACST from STmicroelectronics but seems can't simulate its spice model. Any help will be appreciated. Please find all the files over here,

FYI - The LTC6268-10's input voltage range just reaches the V- supply pin but does not go below it even a little.? So it's taking a risk, having the negative supply pin grounded, with the +IN pin

When you have a command such as this on a schematic: .options cshunt=1e-14 + noopiter + gminsteps = 0 it is essential to have all three lines in the same SPICE Directive.? But in the schematic you

Tom wrote, "One should never use a gas tube protector across an AC or DC line. Once they fire they will not shut off unless the voltage/current drop below the sustaining level. " But with AC, doesn't

They are basically the same principle except the neon gas both lowers the trigger voltage and makes it predictable. Neon bulbs must operate within power limits while spark gap power is only limited by

Spark gaps are widely used for protection. The most common is the ceramic gas tube protectors for Telecom. They come in 2 and 3 lead versions. 3 lead used for balanced lines. In the old days, the gas

I would dare to suggest that a hot cathode emitter is probably more what the OP is wanting for an ion thruster than a spark gap. I always envisage an ion thruster as being like the cathode end of an

Thanks so much for the detailed explanation! I actually ended up switching to the LTC6268-10 and found that I'm able to actually get some semblance of a response from that opamp at my smallest pulse

The difference is gas pressure. Obviously, the spark gap has atmospheric pressure, about 100 000 Pa, but the pressure in a neon lamp is much lower: 100 Pa to 3000 Pa.