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Might try searching for "Wien Bridge".? And the incorrect spelling with "Wein".

Where did I have DS1 ? Sent: Monday, March 17, 2025 12:24 PM To: [email protected] Subject: EXTERNAL: Re: [LTspice] Incandescent lamp model Is "DS1" an actual part number? I see it as a HID xenon

I searched for “incandescent”… “lamp” returns 76 hits, such as clamp, differentialamp, CFL-lamp, Koren tubes, and my favorite: “Electrical Pulsing of a Laser Diode for Usage in

Is "DS1" an actual part number? I see it as a HID xenon lamp.

That model is probably for a gas-filled lamp, but a pilot light is probably a vacuum lamp. That could make quite a difference. I'm surprised that a 6 V 10mA lamp is still made. Do you really need low

Hello, I am looking at the files now. Be patient, because I am slow as molasses.

Just FYI - There must be several more incandescent models here in this group.? Others have simulated with them in Wien Bridge oscillators.? But Analogspiceman's models are quite good quality so it's

Umm, yeah. Read 04 as 24! Sent: Monday, March 17, 2025 11:50 AM To: [email protected] Subject: EXTERNAL: Re: [LTspice] Incandescent lamp model I think you mean 21 years ago, that he uploaded it. He

Sorry, I am not near my PC so can't check it out just now. Andy

I think you mean 21 years ago, that he uploaded it. He left us about 4-5 years ago. Andy

I'm trying to adapt and use the model in LampModel.zip, uploaded by analogspiceman last September. The test circuit supplied works fine for a 120VAC lamp. I want to adapt it to a small pilot lamp, as

SWEET! Thank you very much, eT. This looks to work in the circuit being modeled. Now I can probe a bit more to work out the intricacies.

Hi I've made a LM121 model from the datasheet but didn't test everything. I'll be uploading file "LM121_Model_20250317.zip" that include a test circuit, model file and symbol. I'll also post a couple

You only need the first 40us, and even 1us should already be enough... -marcel

It's common for the TUNE input to be voltage driven through a low value resistor. It may be that the YIG already has that resistor built-in, but it's usually external because the tuning current can be

If that is true, then john23's specifications are wrong, and the LTspice "model" I made for it is wrong. The Tune input should have been driven by a current, not by a voltage. Andy

Thanks Tony and John, LTspice v24.1.0 was installed automatically yesterday with the internal update. Today tried to update again and now installed new version 24.1.5 I've loaded the test simulation

Sorry, forgot, I have used 1e-9 today in Matlab, I didn't wait it ran all 200us, Just 23% to see the most shape of the leading, the scale is the same, peak approx 40mV. Best regards.

Hi, Marcel: In fact, it doesn't matter to add a '-' sign in time or s-domain. It just changes the positive/negative, instead of the amplitude. Best regards.

I think I found it. When the time-domain waveform is plotted from t=0 to t=50us, it shows a *negative-going* exponential pulse reaching -5.037kV at 960ns. (The shape is approximately waht your picture