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Electrical Engineering

Questions tagged [ripple]

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Small unwanted residual periodic variation of a direct current (dc) output.

228 questions
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0 answers
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I am using this buck boot converter for Powering my microcontroller development board. The buck boost converter board will be powered using a battery. The schematic of buck boost controller is given ...
Confused's user avatar
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0 answers
112 views

I have the circuit below with all the components the same, except the PMOS being a SQD50P04-13L_GE3 MOSFET. The PWM signal that is sent from the STM is from a 216 MHz clock with prescaler 100 and ...
Nicolas Fontenai's user avatar
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2 votes
1 answer
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I’m designing a push-pull converter (still). I have determined the required input capacitance (5600 µF) for a given input voltage ripple (100 mV). The formula I used was derived from the calculation ...
slimcolt's user avatar
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1 answer
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I want to design a variable output Buck-Boost convertor from 1V to 25V from voltage source which is 12V. Based on my research i found the following circuit (LTC3780): I simulated the circuit and it ...
Andromeda's user avatar
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-1 votes
1 answer
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I want to pass a 250MHz trapezoid through an RC differentiator and then amplify the output using 2 inverting OPA855 ( using 2 inverting for a different purpose). My output shows a bit of noise/ripples ...
Dummy Dum's user avatar
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3 votes
1 answer
168 views

Why are the ripples on both sides of the magnetic bead different? The ripple is larger after adding the ferrite bead I have tried other different ferrite beads, CBG201209U121T/CBG160808U100T, The ...
李森文's user avatar
  • 31
3 votes
2 answers
264 views

I have a buck-boost controller with nineteen 100µF tantalum capacitors (TCN4107M035R0100E) at the output. During initial testing, I ran the board from 19V to 40V input, stepping up to 24.5V output, ...
chami's user avatar
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2 votes
2 answers
179 views

I’m new to measuring with an oscilloscope and wondering if this is normal behavior. When measuring for AC ripple on filter capacitors (just replaced with new ones), I’m getting an unstable waveform in ...
Kristoffer Banks's user avatar
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0 votes
0 answers
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Would you please let me know how can I reduce the output ripple of the following circuit: Based on the datasheet there is 25mV ripple, I want to reduce it as much as possible to the fullest extent. ...
Andromeda's user avatar
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0 votes
1 answer
115 views

I attempted to add an LDO to the output of a DC-DC converter to reduce output ripple. However, I observed that the presence of the LDO significantly alters the performance of the DC-DC converter. ...
Andromeda's user avatar
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1 vote
0 answers
119 views

I am designing a simple PCB that includes two buck converters for testing. In the past, I encountered issues with one of the converters (LMR51430XFDDCR datasheet), where voltage spikes during power-up ...
Robert's user avatar
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1 vote
1 answer
210 views

I'm working on a buck converter that discharges a 48 V battery into a 12 V one, 20 A, 20-200 kHz and 11 μH inductor. My first assumption (wrong?) was that the batteries at input and output would act ...
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2 votes
0 answers
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Im trying to understand the chosen values of the components at the RHS of a LDO (AP2112). Here is the circuit: I understand that the 100nF capacitor is chosen according to the datasheet to reduce ...
Tom's user avatar
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-2 votes
1 answer
87 views

I have this basic circuit supplying a fixed current load Y. Suppose that F = main frequency ...
PinkCollins's user avatar
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1 vote
0 answers
58 views

I'm struggling to choose the correct value inductor for my design with a TPS54331. Based on my estimations, I calculated a DC current consumption of 1.3 A for my circuit, but sometimes the circuit ...
SajjSamm's user avatar
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