Timeline for Step-Down convertor. Why does the input voltage go to the output
Current License: CC BY-SA 3.0
14 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| S Oct 6, 2017 at 15:48 | history | suggested | FarO | CC BY-SA 3.0 |
typo, duplication
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| Oct 6, 2017 at 15:46 | comment | added | The Photon | Are you sure you're using an oscillograph and not an oscilloscope? | |
| Oct 6, 2017 at 14:53 | vote | accept | AndreyB | ||
| Oct 6, 2017 at 14:53 | vote | accept | AndreyB | ||
| Oct 6, 2017 at 14:53 | |||||
| Oct 6, 2017 at 14:51 | vote | accept | AndreyB | ||
| Oct 6, 2017 at 14:53 | |||||
| Oct 6, 2017 at 14:44 | comment | added | D.A.S. | If the ground impedance was actually 0 between source and scope, there would be no difference, so in fact it is not 0 ohms including ground inductance and probe coax capacitance(est 100pF)//10M= 1us) | |
| Oct 6, 2017 at 14:34 | comment | added | AndreyB | "what is the time scale on that plot?" 400 μS in cell | |
| Oct 6, 2017 at 14:30 | comment | added | AndreyB | John D, the GND of the USB and the GND of the Oscillograph are a short circuit. I checked this with a digital multimeter | |
| Oct 6, 2017 at 14:26 | answer | added | Russell McMahon♦ | timeline score: 2 | |
| Oct 6, 2017 at 14:25 | answer | added | ratchet freak | timeline score: 2 | |
| Oct 6, 2017 at 14:21 | comment | added | John D | Where is your scope ground connected when you see the issue? I.e. before you connect the ground to the board and the effect disappears? In general, these parts to not behave as you describe, so I suspect some kind of measurement error, but hard to say without more info. | |
| Oct 6, 2017 at 14:19 | review | Suggested edits | |||
| S Oct 6, 2017 at 15:48 | |||||
| Oct 6, 2017 at 14:19 | comment | added | ratchet freak | what is the time scale on that plot? | |
| Oct 6, 2017 at 14:14 | history | asked | AndreyB | CC BY-SA 3.0 |