Timeline for RFI filter modeling in LTspice w/ triac
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Nov 9, 2019 at 0:18 | comment | added | jonk | @higrafey I knew the right equation. I just wanted to encourage you to get in the practice of always cross checking dimensional units. Actually, you can use dimensional analysis, even when otherwise quite ignorant about a situation, to guide you accurately towards the kinds of things you'll need to move towards answers. | |
| Nov 8, 2019 at 23:56 | comment | added | higrafey | @jonk Sorry, I had a typo in my equation. Tim got it. I was trying to format the equation for inline text and accidentally divided instead of multiplying. The calculations were correct, so the resonant frequency values I observed should still be 50 and 157 kHz. :-) | |
| Nov 8, 2019 at 23:52 | history | edited | higrafey | CC BY-SA 4.0 |
Fixed equation
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| Nov 8, 2019 at 21:35 | comment | added | TimWescott | \$f = 1/(2 \pi \sqrt{L C})\$. | |
| Nov 8, 2019 at 21:32 | comment | added | jonk | Just a question. The square root of L/C is an Ohm. Inverted, that's Siemens. How do the units work out in your equation for resonant frequency? Is there a hidden constant of 1 with units somewhere? | |
| Nov 8, 2019 at 21:07 | history | asked | higrafey | CC BY-SA 4.0 |