Timeline for Oscillating instrumentation amplifier with transformer coupled input
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Aug 4, 2022 at 5:02 | history | edited | TonyDublov | CC BY-SA 4.0 |
deleted 59 characters in body
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| S Aug 3, 2022 at 19:38 | vote | accept | TonyDublov | ||
| Aug 3, 2022 at 16:59 | history | edited | TonyDublov | CC BY-SA 4.0 |
deleted 140 characters in body
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| Aug 3, 2022 at 11:52 | comment | added | Antonio51 | No worries. You should test the opamp alone. | |
| Aug 3, 2022 at 7:11 | comment | added | a concerned citizen | @TonyDublov "Mildly related" was because, with a reversed polarity, the output signal will be a sum, instead of a difference, so you should get a larger signal to work with (given the small coupling and non-paired secondaries I presume you're dealing with physical limitations that should benefit from any improvement). Otherwise the selected answer does the job. | |
| Aug 3, 2022 at 6:15 | history | edited | TonyDublov | CC BY-SA 4.0 |
added 116 characters in body
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| Aug 3, 2022 at 5:38 | vote | accept | TonyDublov | ||
| S Aug 3, 2022 at 19:38 | |||||
| Aug 3, 2022 at 5:28 | comment | added | TonyDublov | @Antonio51I can't go into detail about the sensor. I chose the in-amp because of its high input impedance. A resistor would lower the input impedance and doesn't help in the simulation. | |
| Aug 3, 2022 at 5:23 | comment | added | TonyDublov | @aconcernedcitizen It oscillates too. | |
| Aug 2, 2022 at 21:34 | history | became hot network question | |||
| Aug 2, 2022 at 19:25 | answer | added | Antonio51 | timeline score: 2 | |
| Aug 2, 2022 at 19:17 | comment | added | Antonio51 | Why is the value of L6, a different value L8? NB: if the input transformer is "wideband", a resistor between the outputs (top L6, bottom L8) can lower the peak. | |
| Aug 2, 2022 at 15:29 | comment | added | a concerned citizen |
Mildly related: what happens if you switch the polarity of L8?
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| Aug 2, 2022 at 14:29 | answer | added | Kevin White | timeline score: 7 | |
| Aug 2, 2022 at 13:30 | history | asked | TonyDublov | CC BY-SA 4.0 |