Timeline for Issue with influence between channels in a dual-channel high-side current sensing circuit
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Jan 16 at 17:33 | answer | added | Tim Williams | timeline score: 0 | |
| Jan 16 at 16:59 | vote | accept | Bongjin | ||
| Jan 16 at 16:58 | history | edited | Bongjin | CC BY-SA 4.0 |
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| Jan 16 at 1:47 | history | edited | ocrdu | CC BY-SA 4.0 |
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| Jan 16 at 0:39 | answer | added | bobflux | timeline score: 2 | |
| Jan 16 at 0:23 | history | edited | toolic | CC BY-SA 4.0 |
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| Jan 16 at 0:21 | comment | added | DELTA12 | Looks like both channels feed from the same supply (+12V). Don't forget the internal resistance of the supply. At 5A, this could be significant. Explaining the intended operation in detail would also be helpful. Whatever is down the line (at +12V_CH0 and *_Ch1) could be significant too. Also, what is your PCB design here? You could have coupling between the two channels, although this doesn't at first seem to be the issue (1A cross coupling at 5A would be quite a lot) | |
| Jan 16 at 0:21 | comment | added | vir | What does "not as expected" mean? Show us pictures of the board and the test setup. | |
| S Jan 16 at 0:06 | review | First questions | |||
| Jan 16 at 0:23 | |||||
| S Jan 16 at 0:06 | history | asked | Bongjin | CC BY-SA 4.0 |