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Why can't I see bouncing of switch on oscilloscope screen?


Can't observe DC offset in a simple RC circuit with an oscilloscopeWhy I cannot see SPI signal properly with oscilloscope?Cannot get a digital square wave on oscilloscope from the GPIO of the Raspberry Pi?Can I see an analog signal with changeable frequency on oscilloscope?See if signal is amplified without an oscilloscopeMy “audio oscilloscope” can't measure static/constant voltages but only changesHow to add bouncing to a switch in LTspice?Is it bad to let an oscilloscope trace go off screen?Why do I see multiple waveforms on my oscilloscope in normal trigger mode?To see an encoded AM radio wave, what kind of Oscilloscope do I need?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








2












$begingroup$


I'm trying to view bouncing of a simple switch on the oscilloscope. I have prepared a simple breadboard circuit (power->switch->resistor->ground). The problem is, it is displayed as perfect square/rectangle on the scope. I have attached a photo of scope screen and circuit. Please help me to identify why I can't catch bouncing of the switch on the scope. I don't think it this is a non-bouncing switch.
Edit: I have added a 3rd photo showing zoomed in time scale, 50uSec. As you can see it is rising 0 to 9v within 150uSec and staying there. I have tried a few different switches. Resistor in the picture is 220ohm 0.5w resistor.



oscilloscopecircuitenter image description here










share|improve this question









New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$







  • 6




    $begingroup$
    Have you tried adjusting the time base / horizontal scale?
    $endgroup$
    – NMF
    1 hour ago











  • $begingroup$
    Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
    $endgroup$
    – Toor
    1 hour ago







  • 1




    $begingroup$
    If you don't succeed on the first try, try again.
    $endgroup$
    – StainlessSteelRat
    58 mins ago






  • 1




    $begingroup$
    I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
    $endgroup$
    – pipe
    22 mins ago






  • 1




    $begingroup$
    My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
    $endgroup$
    – Deniz
    14 mins ago

















2












$begingroup$


I'm trying to view bouncing of a simple switch on the oscilloscope. I have prepared a simple breadboard circuit (power->switch->resistor->ground). The problem is, it is displayed as perfect square/rectangle on the scope. I have attached a photo of scope screen and circuit. Please help me to identify why I can't catch bouncing of the switch on the scope. I don't think it this is a non-bouncing switch.
Edit: I have added a 3rd photo showing zoomed in time scale, 50uSec. As you can see it is rising 0 to 9v within 150uSec and staying there. I have tried a few different switches. Resistor in the picture is 220ohm 0.5w resistor.



oscilloscopecircuitenter image description here










share|improve this question









New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$







  • 6




    $begingroup$
    Have you tried adjusting the time base / horizontal scale?
    $endgroup$
    – NMF
    1 hour ago











  • $begingroup$
    Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
    $endgroup$
    – Toor
    1 hour ago







  • 1




    $begingroup$
    If you don't succeed on the first try, try again.
    $endgroup$
    – StainlessSteelRat
    58 mins ago






  • 1




    $begingroup$
    I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
    $endgroup$
    – pipe
    22 mins ago






  • 1




    $begingroup$
    My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
    $endgroup$
    – Deniz
    14 mins ago













2












2








2





$begingroup$


I'm trying to view bouncing of a simple switch on the oscilloscope. I have prepared a simple breadboard circuit (power->switch->resistor->ground). The problem is, it is displayed as perfect square/rectangle on the scope. I have attached a photo of scope screen and circuit. Please help me to identify why I can't catch bouncing of the switch on the scope. I don't think it this is a non-bouncing switch.
Edit: I have added a 3rd photo showing zoomed in time scale, 50uSec. As you can see it is rising 0 to 9v within 150uSec and staying there. I have tried a few different switches. Resistor in the picture is 220ohm 0.5w resistor.



oscilloscopecircuitenter image description here










share|improve this question









New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$




I'm trying to view bouncing of a simple switch on the oscilloscope. I have prepared a simple breadboard circuit (power->switch->resistor->ground). The problem is, it is displayed as perfect square/rectangle on the scope. I have attached a photo of scope screen and circuit. Please help me to identify why I can't catch bouncing of the switch on the scope. I don't think it this is a non-bouncing switch.
Edit: I have added a 3rd photo showing zoomed in time scale, 50uSec. As you can see it is rising 0 to 9v within 150uSec and staying there. I have tried a few different switches. Resistor in the picture is 220ohm 0.5w resistor.



oscilloscopecircuitenter image description here







switches oscilloscope debounce






share|improve this question









New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 31 mins ago







Deniz













New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 1 hour ago









DenizDeniz

1113




1113




New contributor




Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Deniz is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







  • 6




    $begingroup$
    Have you tried adjusting the time base / horizontal scale?
    $endgroup$
    – NMF
    1 hour ago











  • $begingroup$
    Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
    $endgroup$
    – Toor
    1 hour ago







  • 1




    $begingroup$
    If you don't succeed on the first try, try again.
    $endgroup$
    – StainlessSteelRat
    58 mins ago






  • 1




    $begingroup$
    I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
    $endgroup$
    – pipe
    22 mins ago






  • 1




    $begingroup$
    My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
    $endgroup$
    – Deniz
    14 mins ago












  • 6




    $begingroup$
    Have you tried adjusting the time base / horizontal scale?
    $endgroup$
    – NMF
    1 hour ago











  • $begingroup$
    Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
    $endgroup$
    – Toor
    1 hour ago







  • 1




    $begingroup$
    If you don't succeed on the first try, try again.
    $endgroup$
    – StainlessSteelRat
    58 mins ago






  • 1




    $begingroup$
    I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
    $endgroup$
    – pipe
    22 mins ago






  • 1




    $begingroup$
    My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
    $endgroup$
    – Deniz
    14 mins ago







6




6




$begingroup$
Have you tried adjusting the time base / horizontal scale?
$endgroup$
– NMF
1 hour ago





$begingroup$
Have you tried adjusting the time base / horizontal scale?
$endgroup$
– NMF
1 hour ago













$begingroup$
Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
$endgroup$
– Toor
1 hour ago





$begingroup$
Yeah, zoom in farther. Although, I must say that switches typically bounce for 1-10ms, and that should be visible on the OP's 50ms/div timescale. That's surprisingly clean switch.
$endgroup$
– Toor
1 hour ago





1




1




$begingroup$
If you don't succeed on the first try, try again.
$endgroup$
– StainlessSteelRat
58 mins ago




$begingroup$
If you don't succeed on the first try, try again.
$endgroup$
– StainlessSteelRat
58 mins ago




1




1




$begingroup$
I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
$endgroup$
– pipe
22 mins ago




$begingroup$
I have a hard time believing that your zoomed in version is actually a new trig. Nothing would look like that except the scope's internal interpolation. An clean break with an RC-filter created by the scope would show an exponential clean rise - nothing linear. I bet that you just zoomed in on the stored waveform.
$endgroup$
– pipe
22 mins ago




1




1




$begingroup$
My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
$endgroup$
– Deniz
14 mins ago




$begingroup$
My zoomed photo is from another capture with battery instead of power supply. But as @pipe sait I have captured on zoomed out view and then zoomed on the rising edge after that. Now I understand that changing time scale before the capture and after the capture is different things? I didn't know that. I will need to figure out how to capture when time scale is set to uSec range.
$endgroup$
– Deniz
14 mins ago










2 Answers
2






active

oldest

votes


















4












$begingroup$

First, "zoom in" to that rising edge by adjusting the time base. When you start getting close, you will start to see the rising slope of the signal.



As you do this, you will start to lose resolution on your captured signal. You can capture new samples of that rising edge using the scope's triggering mechanism.



Once you can see the rising slope, capture a new sample. Any bouncing/overshoot/noise should become apparent.






share|improve this answer











$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    36 mins ago






  • 1




    $begingroup$
    If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
    $endgroup$
    – KalleMP
    31 mins ago











  • $begingroup$
    @Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
    $endgroup$
    – TimWescott
    12 mins ago


















2












$begingroup$

enter image description here



Figure 1. The guys down at photo-forensics found this.



There are several factors:



  • You have a nice new clean switch that bounces very little.

  • Your scope is loading the circuit and the 15 pF is enough to help. This is unlikely, though, with what appears to be a resistor with a value in the hundreds of ohms. (The colour rendition of your photo is poor.)

  • Timebase is too fast - but your comments say you've checked this.

I'd go with the first and second option.






share|improve this answer









$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    35 mins ago










  • $begingroup$
    So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
    $endgroup$
    – Sunnyskyguy EE75
    9 mins ago












Your Answer





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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









4












$begingroup$

First, "zoom in" to that rising edge by adjusting the time base. When you start getting close, you will start to see the rising slope of the signal.



As you do this, you will start to lose resolution on your captured signal. You can capture new samples of that rising edge using the scope's triggering mechanism.



Once you can see the rising slope, capture a new sample. Any bouncing/overshoot/noise should become apparent.






share|improve this answer











$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    36 mins ago






  • 1




    $begingroup$
    If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
    $endgroup$
    – KalleMP
    31 mins ago











  • $begingroup$
    @Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
    $endgroup$
    – TimWescott
    12 mins ago















4












$begingroup$

First, "zoom in" to that rising edge by adjusting the time base. When you start getting close, you will start to see the rising slope of the signal.



As you do this, you will start to lose resolution on your captured signal. You can capture new samples of that rising edge using the scope's triggering mechanism.



Once you can see the rising slope, capture a new sample. Any bouncing/overshoot/noise should become apparent.






share|improve this answer











$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    36 mins ago






  • 1




    $begingroup$
    If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
    $endgroup$
    – KalleMP
    31 mins ago











  • $begingroup$
    @Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
    $endgroup$
    – TimWescott
    12 mins ago













4












4








4





$begingroup$

First, "zoom in" to that rising edge by adjusting the time base. When you start getting close, you will start to see the rising slope of the signal.



As you do this, you will start to lose resolution on your captured signal. You can capture new samples of that rising edge using the scope's triggering mechanism.



Once you can see the rising slope, capture a new sample. Any bouncing/overshoot/noise should become apparent.






share|improve this answer











$endgroup$



First, "zoom in" to that rising edge by adjusting the time base. When you start getting close, you will start to see the rising slope of the signal.



As you do this, you will start to lose resolution on your captured signal. You can capture new samples of that rising edge using the scope's triggering mechanism.



Once you can see the rising slope, capture a new sample. Any bouncing/overshoot/noise should become apparent.







share|improve this answer














share|improve this answer



share|improve this answer








edited 4 mins ago

























answered 59 mins ago









bitsmackbitsmack

11.9k73677




11.9k73677











  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    36 mins ago






  • 1




    $begingroup$
    If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
    $endgroup$
    – KalleMP
    31 mins ago











  • $begingroup$
    @Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
    $endgroup$
    – TimWescott
    12 mins ago
















  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    36 mins ago






  • 1




    $begingroup$
    If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
    $endgroup$
    – KalleMP
    31 mins ago











  • $begingroup$
    @Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
    $endgroup$
    – TimWescott
    12 mins ago















$begingroup$
I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
$endgroup$
– Deniz
36 mins ago




$begingroup$
I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
$endgroup$
– Deniz
36 mins ago




1




1




$begingroup$
If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
$endgroup$
– KalleMP
31 mins ago





$begingroup$
If you zoom a stored waveform it may not have intermediate samples and just interpolate. You may see the edge sharper if you store a new sample at the higher timebase setting. As mentioned, good or new switches may have very little detectable bounce.
$endgroup$
– KalleMP
31 mins ago













$begingroup$
@Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
$endgroup$
– TimWescott
12 mins ago




$begingroup$
@Deniz no switch closure is going to result in a piecewise linear pulse -- that has to be a zoom-in of something sampled at a lower rate (probably 150$mu$s, because that's how long it's taking to rise up).
$endgroup$
– TimWescott
12 mins ago













2












$begingroup$

enter image description here



Figure 1. The guys down at photo-forensics found this.



There are several factors:



  • You have a nice new clean switch that bounces very little.

  • Your scope is loading the circuit and the 15 pF is enough to help. This is unlikely, though, with what appears to be a resistor with a value in the hundreds of ohms. (The colour rendition of your photo is poor.)

  • Timebase is too fast - but your comments say you've checked this.

I'd go with the first and second option.






share|improve this answer









$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    35 mins ago










  • $begingroup$
    So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
    $endgroup$
    – Sunnyskyguy EE75
    9 mins ago
















2












$begingroup$

enter image description here



Figure 1. The guys down at photo-forensics found this.



There are several factors:



  • You have a nice new clean switch that bounces very little.

  • Your scope is loading the circuit and the 15 pF is enough to help. This is unlikely, though, with what appears to be a resistor with a value in the hundreds of ohms. (The colour rendition of your photo is poor.)

  • Timebase is too fast - but your comments say you've checked this.

I'd go with the first and second option.






share|improve this answer









$endgroup$












  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    35 mins ago










  • $begingroup$
    So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
    $endgroup$
    – Sunnyskyguy EE75
    9 mins ago














2












2








2





$begingroup$

enter image description here



Figure 1. The guys down at photo-forensics found this.



There are several factors:



  • You have a nice new clean switch that bounces very little.

  • Your scope is loading the circuit and the 15 pF is enough to help. This is unlikely, though, with what appears to be a resistor with a value in the hundreds of ohms. (The colour rendition of your photo is poor.)

  • Timebase is too fast - but your comments say you've checked this.

I'd go with the first and second option.






share|improve this answer









$endgroup$



enter image description here



Figure 1. The guys down at photo-forensics found this.



There are several factors:



  • You have a nice new clean switch that bounces very little.

  • Your scope is loading the circuit and the 15 pF is enough to help. This is unlikely, though, with what appears to be a resistor with a value in the hundreds of ohms. (The colour rendition of your photo is poor.)

  • Timebase is too fast - but your comments say you've checked this.

I'd go with the first and second option.







share|improve this answer












share|improve this answer



share|improve this answer










answered 1 hour ago









TransistorTransistor

88.2k785189




88.2k785189











  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    35 mins ago










  • $begingroup$
    So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
    $endgroup$
    – Sunnyskyguy EE75
    9 mins ago

















  • $begingroup$
    I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
    $endgroup$
    – Deniz
    35 mins ago










  • $begingroup$
    So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
    $endgroup$
    – Sunnyskyguy EE75
    9 mins ago
















$begingroup$
I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
$endgroup$
– Deniz
35 mins ago




$begingroup$
I have added 50uSec zoomed time scale photo. As you can see no bounce. I will also try to read button with a micro controller to see whether it is actually bouncing or not.
$endgroup$
– Deniz
35 mins ago












$begingroup$
So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
$endgroup$
– Sunnyskyguy EE75
9 mins ago





$begingroup$
So you think the 15pF is loading the 220 Ohms with a 3.3ns RC asymptote resulting in a 150us linear ramp? Ask the forensic guys to check again. My forensic guy said it smelt like 220 ohm i.stack.imgur.com/xEwUo.png
$endgroup$
– Sunnyskyguy EE75
9 mins ago











Deniz is a new contributor. Be nice, and check out our Code of Conduct.









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Deniz is a new contributor. Be nice, and check out our Code of Conduct.












Deniz is a new contributor. Be nice, and check out our Code of Conduct.











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