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Questions tagged [smoothing-capacitor]

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0 votes
3 answers
1k views

Choosing capacitance for recifier

So I'm trying to use a couple of rectifiers. Specifically, the "NTE5326" and the "36MB120A." I've tried following videos on how to calculate for a smoothing-capacitor but to no avail. If you use ...
Nathan Johnson's user avatar
1 vote
2 answers
562 views

PCB input smoothing capacitor layout

I got some 0.1uF ceramic capacitor in front of my mcu IO pins to smooth the inputs values/spikes I was wondering if this placement is bad or not because their position is "over" the input so maybe (...
Rubens's user avatar
  • 21
0 votes
1 answer
198 views

Need help determining smoothing capacitor(s) for rectifier

I am making a rectifier for a single N-Scale train building. It takes DC, but the train controller gives out 19VAC. I have 4 1N4001s and some capacitors, but probably not the right size/uf. I only ...
Troy Osborne's user avatar
0 votes
1 answer
1k views

Smoothing cap vs filter for full wave bridge rectifier circuit

I am designing a circuit which requires high-voltage DC. My plan is to step-up my mains (120VAC) with a transformer and then pass that through a FWB. After the FWB, I want to smooth the signal into a ...
boxcartenant's user avatar
0 votes
2 answers
118 views

Ideas to smooth variable AC voltages/spikes reported to ADC circuit

I’m trying to integrate a 40+ year old ac motor and remote controller with a device using modern ADC controllers to remotely manage the motor turning process. The legacy gear is an old CDE Ham-M ...
Jim McDermott's user avatar
0 votes
1 answer
58 views

Do i need to protect a DC adapter from current spikes (produced by buck converter)?

I wonder if i need to protect my ac adapter, which has over-voltage, over-current and short-circuit protection. The ac adapter feeds a buck-converter which uses a low-side n-mosfet switch ...
jumpingwires's user avatar
0 votes
3 answers
424 views

How are size of caps determined/calculated for use in smoothing voltage?

I'm reading this great book (AVR Programming: Learning to Write Software for Hardware by Elliot Williams) and setting up my arduino atmega328pu, usbasp programmer and using avrdude to program the chip....
raddevus's user avatar
  • 1,282
1 vote
2 answers
12k views

How may I select a smoothing capacitor to mitigate LED flicker without the use of a scope?

I recently replaced a set of incandescent bulbs from the interior of my old car with some very inexpensive festoon LEDs. Unfortunately the LEDs are not 100% compatible with the lighting system as ...
Steve Guidi's user avatar
0 votes
2 answers
1k views

Smoothing capacitor for scooter regulator - High constant current drawn

I've researched the forum before posting, but it seems my question is a bit specific and not answered before. Please excuse me if I'm wrong. So what we have here is a chinese scooter alternator, ...
Nick G.'s user avatar
1 vote
2 answers
4k views

AC mains LED flicker

I have a number of simple LED strip lights, purchased to replace fluorescent tubes in a kitchen. Having installed the first ones, they have a noticeable flicker (to me, but not my wife!) on moving ...
user184338's user avatar
0 votes
1 answer
88 views

How does a filtering capacitor smoth a changing current? [duplicate]

Lets assume,in picture blow, the current be in its peak voltage moment. then when the current begins to fall (assume a moment after the peak moment) we know the current is blocked by diodes (actually ...
Abbas Molaei's user avatar
4 votes
2 answers
6k views

Smoothing a Full-Wave rectifier voltage

I was reading about full-wave rectifiers and came across the schematics below which the capacitor C can smooth its voltage, but I didn't understand one case: We know that when the rectifier's voltage ...
Abbas Molaei's user avatar
0 votes
2 answers
730 views

Capacitor value for rectified magneto PSU

## Need capacitor value for below circuit ## Hi guys, Kindly help me with the situation below. I want to run my LED headlamp (with upper & dipper functions) via flywheel magneto. Current setup:...
Swaps07's user avatar
  • 11
-3 votes
1 answer
105 views

what is the main differences between the capacitors? [closed]

I have read many documents on these terminologies. I find almost same working for these capacitors. Please make me clear what is the main difference between bypass capacitor, decoupling capacitor &...
Khushi Agrawal's user avatar
0 votes
2 answers
1k views

Smoothing unregulated DC input voltage to a voltage regulator

I am building a USB mobile charger powered by manually rotating a 12V DC motor shaft. This voltage goes as an input to a LM7805 voltage regulator and the output of the voltage regulator is used to ...
ster's user avatar
  • 1

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