Measuring series and parallel capacitors with electronics multimeter that can tutorial lesson.
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- Опубликовано: 4 фев 2025
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#electronics #capacitor #multimeter
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Best video on RUclips regarding capacitor.. watching from india
Glad to hear, thanks for watching! Hope all is well in India. Looks like a lot of people are doing electronics there
subscribed, you're the first i have found to keep it simple enough for me to learn. Thank You :)
Thanks and glad to hear!
Could you please explain something to me about what to look for when looking at the specifications of a capacitor for building a guitar tube amplifier?
Some questions I have are;
1. Ripple Current, am I looking for a high number or a low number in the spec?
2. Temperature, Am I looking for a higher or lower number in the spec?
3. Leakage Current, am I looking for a higher number of a lower number in the spec?
What manufacture will usually have better specifications;
1. Panasonic
3. Nichcon
This was the best video that simple explains series & parallel so we can understand. Thank you for sharing you wisdom with us!!!
I've never done any music amplifiers so I don't know their demands. Audio electronics is one of the areas of electronics I least plan to get into. Generally speaking though, you want enough capacitance to smooth the ripple to where you don't notice the effects. You always want low leakage, but that may cost more so that's probably not a major concern for a circuit you constantly keep powered as long as it isn't too severe. Heat is always the big concern for electronic components, so you need to check maximum current and power ratings. Typically capacitors don't heat up much but if they are rapidly charging and discharging, have higher internal resistance, near other hot components, etc. Then heat may become an issue and you'd need one rated to handle that. Usually when I plan a completely new project, I google circuits designed by others and try to get as many opinions as possible. I learn a lot reading product reviews too.
Thank you for the quick response and educating your viewers.
Thanks for the info on purchasing the right reader
Thanks for watching!
Great video saves me all that time trying it myself.
I think RUclips is making me lazy. 😂
Good times :)
What can I charge a 16v cap at ? For example I've connected a 28v transformer with a full bridge rectifier and this 16v 1500uF cap and the end DC voltage was 36v, does that dmg the cap ? I mean it didn't blow up... but I didn't test it for a long period of time... I guess it's bad, right ?
I haven't done any capacitor testing like that so not an expert. I have damaged some so that they discharge more quickly than they should, which is what I am guessing that charging them to that high of a voltage would most likely do. Another youtuber over charged a polarized capacitor in the wrong direction and it blew up.
Wow Good Video...nice and clear..
Glad to hear!
very nice video , thnx for sharing
i have power unit of LCD tv that need a capacitor with 1200 uf/25v, didn't find that exact numbers currently in my area electronic shops, i am planing to use 2 capacitors and joining them to give me the total of (1200/25), i have 1000uf/25 can i add 200 or 220 in parallel with the same volt to give me what i need ? or what do u recommend for my current situation ?
Parallel 1000uF and 200uF is a good way to get the equivalent of 1200uF as long as they can handle at least the same amount of voltage, as you state they do. I never repair anything, so don't know of anything else you may run into, but I know that electrolytic capacitors fail often as they age and need to be replaced, so I'm sure that's all you'll need to do. Hope it goes well!
@@Electronzap thnx for the replay ... actually what i found is 220uf/25v gonna connect it with 1000uf/25v and see if that will work, at least till i find the proper spear (1200uf/25v) ... wish me luck ;)
thanks, basically connecting capacitors are like connecting batteries in series or parallel.
Yeah, they are similar to mini rechargeable batteries.
Thank you
Thanks for watching!
Great video, I'm about to do some wierdness with some 16v 10000 if caps when they come in.
Thanks! And that sounds fun lol.
is it the same situation with tantalum capacitors?
I think so, I never worked with them, but I think they work the same as electrolytic capacitors.
@@Electronzap thank you
Question: I have connected three 1uF in series with a 9V (measured as 8.1V battery before connection). From first to last capacitor the voltage was 8.1V and the capacitors were around 2.5V. The thing I have noticed is that by holding the multimeter to the legs of a single capacitor the voltage kept dropping gradually all the way from 2.5V to 0.7V - when I terminated the experiment. I have tested all 3 capacitors and all 3 showed this behavior. Why? s this because the capacitor discharges through the multimeter and the current goes around the capacitor since this is the path of least resistance?
Capacitors lose voltage on their own over time in a process called leakage. If you want to store energy in capacitors for long periods of time, you need special capacitors. Smaller value capacitors will lose voltage due to a multimeter much quicker than larger value capacitors as some current needs to pass through the multimeter to take a measurement. The amount of current passing through the meter is determined by voltage and the smaller value capacitors have less total charge stored and thus their voltage drops faster for a given amount of current.
Thank you for your answer. I know capacitors lose their voltage, but I was surprised that this would happen even when the power "that feeds them" is constantly on: red wire of the 9V battery-C1-C2-C3-black wire of the 9V battery. I thought that drainage happens only when they are isolated from the power source "feeding them" for example with a pushbutton, pulling them out of the circuit, etc.
Oh I see what you mean. While in series, capacitors will charge unevenly if there is a current path around them (such as through a multimeter). The capacitor you are measuring will lose voltage and the other series capacitors will gain voltage. These unequal voltages will remain after you remove the multimeter and if you discharge them, the one with the lowest voltage will actually fully discharge and then gain a negative voltage as the higher charged capacitors discharge into it backwards. I have to go to work so can't post links right now, but I did some videos on this, and how dangerous it can be if you let it happen.
Thanks that was useful.
Thanks!
If I have two Capacitor one for example 1uf 400v and another one 2 uf 250v by connecting them in paralell I know that the capacitance is 3uf ????v but what is the voltage rating now ?,,,,,thenks
It is the lowest value of the parallel capacitors. So you'd have to stop charging when you reach 250V. Both capacitors will be charged to 250V at the same time, which would be the same time it would take a 3F capacitor to charge to 250V when charged through a resistance. Charging to any higher voltage will likely damage the 250V capacitor.
When you have to watch labs online bc of the Corona Virus smh
Hey there! I was literally just watching about people not going out and wondered if RUclipsrs would get more views. Thanks for watching! Hope it helps!
Totally Relatable!!!!
This is exactly what I am doing!
Wish the instructors would post you tube videos too....
@@dannyj6787 Glad to have you watching!
@@Electronzap
Wow, so cool. I never expected you to reply!
If you have a second, I am having trouble figuring out how to calculate the charge (Q) through each capacitor.
Can I take my voltage reading and simply multiply it by the capacitor value>
Thank you!
Thanks for watching!
Observation table send pls.......