Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [smoothing-capacitor]

The tag has no usage guidance.

0
votes
3answers
72 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 ...
1
vote
2answers
120 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 (...
0
votes
1answer
61 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 ...
0
votes
1answer
259 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 ...
0
votes
2answers
35 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 ...
0
votes
1answer
39 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 ...
0
votes
3answers
101 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....
1
vote
2answers
1k 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 ...
0
votes
2answers
225 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, ...
1
vote
2answers
783 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 ...
0
votes
1answer
70 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 ...
4
votes
2answers
2k 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 ...
0
votes
2answers
339 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:...
-3
votes
1answer
94 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 &...
0
votes
2answers
243 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 ...
1
vote
1answer
66 views

Provide extra current to a power supply output cover current surge of load at turn-on

Searching the previous questions I can find ones similar to this but nothing that answers this specifically. I have a power converter which makes 115VAC/400Hz from 115VAC/60Hz and provides 2.5 amps. ...
0
votes
1answer
235 views

Voltage supplied by smoothing capacitor

I did an experiment on full-wave rectifier with capacitor, and trying to calculate the energy that the capacitor supplies to the output. The picture above is the graph that I got through an experiment ...
3
votes
2answers
3k views

Do I really need a large smoothing capacitor?

When I design a basic power supply that uses a full wave rectifier, The smoothing capacitor is very large. The output of power supply is 5V and 1A. The ripple voltage equation is: V = I / (f*C) f = ...