All Questions
Tagged with ripple oscilloscope
9
questions
1
vote
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315
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How to use measured values to obtain an experimental ripple factor for a full wave bridge rectifier with no filter
Hello this is my first post. This is my thought process:
I can use the following equations to calculate the theoretical ripple factor for a full wave rectifier:
Through simplifying, it can be ...
- 11
0
votes
1
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353
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Understanding ripple in oscilloscope
I have a linear (non-switched) power supply that states in the specs a ripple of 10 mV p-p
Measuring it with the oscilloscope, as you can see in the image it measures Vpp = 30mV.
The oscilloscope is ...
- 227
0
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2
answers
380
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Why am I getting this oscilloscope reading? (Half wave rectifier)
I’m trying to use a half wave rectifier with a capacitor filter and instead of getting a ripple voltage at the output it’s giving a signal that looks like white noise(pic below). Any ideas?
(a signal ...
- 3
1
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What could be the reason if the AC coupling option goes away when I attach a differential probe (P6248) to a Tek MSO5204 scope?
When the scope is not attached, I could see both AC coupling and DC coupling options for the channel settings. The moment I attach the differential probe, the AC coupling option goes away. Any reason?...
- 3,032
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Measuring Output Ripple Voltage
Please check the below waveform of my 5V output ripple of the buck converter.
I am measuring the output ripple across the output capacitor of the converter. Why are these spikes coming while ...
user220456
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2
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1k
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Does polarity of scope probe matter when measuring ripple of the power supply module?
Measuring ripple of 28V/12V power supply module across +/- output pins. Does the probe tip have to be placed at +pin and probe gnd to -pin, or it can be reversed?
Having inverted readings when ...
- 131
2
votes
1
answer
379
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How to setup the oscilloscope for measuring power supply response
I need to measure the overshoot and to modify some capacitor values in the feedback loop of the operational amplifiers in order to find the best response of the power supply (it's a linear power ...
- 343
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236
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Average of AC signal measured with oscilloscope
I'm wondering why the oscilloscope displays that average rectifier ripple voltage value measured in AC mode is higher than zero. Moreover, the minimum value happens also to be higher than zero. ...
- 1
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3
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619
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Reducing power supply ripple for GSM modem
I'm powering a SM5100B GSM modem from a 5A bench supply (peak current is 2A). The required supply range is Vmin=3.3V, Vnom=3.6V, Vmax=4.2V, so I'm giving it 4V. Every so often, the module will reboot (...
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