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How to change alternating current to direct current? How to do it??

kamilek5_4 35109 20
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How can I convert alternating current into direct current?

You can convert AC to DC with a rectifier, usually a diode bridge, followed by a smoothing capacitor or filter. A single rectifier diode gives half-wave rectification, while a full bridge (Graetz bridge) gives full-wave rectification [#2919686] [#2919691] One reply summarizes it as: AC -> rectifier bridge -> capacitor -> constant current, and notes that the exact parts depend on the load and allowed ripple [#2920811] [#2919682] For a 60 V AC source, use a bridge or a single diode with a capacitor to reduce ripple [#3186098] The capacitor should be rated at least 100 V, and its capacitance depends on the current consumed and the permissible ripple [#3186098]
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  • #1 2919638
    kamilek5_4
    Level 11  
    Posts: 9
    Rate: 5
    Hello, I have a small problem, I want to change alternating current into direct current and I don`t know how to do it, please help ;]
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  • #2 2919682
    Preskaler
    Level 40  
    Posts: 6402
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    Well, there is not enough information to provide a comprehensive answer! Direct current can be obtained from alternating current using a rectifier and a filter system, but it all depends on the voltage value, current consumption and the permissible ripple factor.
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  • #3 2919686
    Spitor
    Level 16  
    Posts: 163
    Help: 16
    Rate: 27
    Hello
    Use diodes or a rectifier bridge
    Greetings
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  • #5 2920640
    Preskaler
    Level 40  
    Posts: 6402
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    Yes! Only in this case it will not be direct current but unidirectional! Unless this is what "Kamilek5_4" is talking about.
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  • #6 2920811
    Gibon007er
    Level 22  
    Posts: 674
    Help: 10
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    Variable current --> Rectifier bridge --> capacitor --> Constant current :) :) :)
  • #7 2924528
    cackoarek
    Level 26  
    Posts: 738
    Help: 97
    Rate: 59
    Well, the appropriate selection of elements depends on specific cases... we need more information
  • #8 2924646
    przemo.t
    Level 27  
    Posts: 994
    Help: 79
    Rate: 30
    Hmm....
    Is it alternating current or alternating current? An alternating current is one that changes its intensity as a function of time, and everyone describes a solution to "straighten" an alternating current.

    Since these concepts are often confused, could you describe exactly what it means, my friend?
    Maybe the solutions are good and the question is confusing :)

    Regards :P

    PS: maybe I`m just nitpicking? ;p
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  • #9 2929956
    Preskaler
    Level 40  
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    Well, in principle, yes, but in colloquial speech the term "alternating current" is used and the term "alternating current" is thought of. I use this term (colloquially) and define "variable" as one-way (like a street). A constant is, of course, also unidirectional, but without a variable component or this component has a very small amplitude. Similarly, the term "heaven" is used to refer to clouds or a cloud-free space above our heads in an open space, and "heaven" in the sense of "paradise" where good Catholics will go (well, not after death, but...) after the "Last Judgment" " :D . There are many terms that are used more or less incorrectly and additional terms are needed to avoid mistakes.
  • #10 2930408
    przemo.t
    Level 27  
    Posts: 994
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    Heheh, yes, I know that`s what they say colloquially :) I use this phrase myself. However, I think that with such basic questions as about the rectifier bridge, the questioner can be misled. :)

    My friend kamilek, as my "previous speakers" wrote, 4 rectifier diodes and a capacitor (if, of course, it is about "rectifying an alternating current (such as the one in the 230V network)) :D

    Regards
  • #11 2934100
    inkognito09
    Level 29  
    Posts: 1549
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    Rate: 154
    Your alternating current is alternating :P . You wrote well, but you drew badly. For it to be truly variable, it should flow in one direction all the time, changing only the voltage/current if you prefer.
  • #12 2934321
    menek
    Level 19  
    Posts: 241
    Help: 25
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    I disagree with the statement above. The fact that the current is alternating does not mean that it must flow in one direction. Alternating current is also an alternating current (periodic), and it has both positive and negative values.
  • #13 2934427
    Preskaler
    Level 40  
    Posts: 6402
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    But it happened!
    Maybe it`s better to write like this?
    All alternating current is alternating current, but not all alternating current is alternating current.
    The discussion has developed, but nothing new has been added to the matter because "Kamilwk5_4" is silent and does not want (or cannot) provide information. So let me make one more attempt to get the "question" out of the question: why does it need this current? You need to know what the current consumption, voltage and permissible ripple will be? And is it about a specific diagram (with element values) or just theoretical answers? The latter has already happened, so maybe he doesn`t want to know anything more?
  • #14 2938013
    cackoarek
    Level 26  
    Posts: 738
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    Such actions sometimes "annoy" me. People try to help someone, they write, they devote their time and what happens? Someone is blowing you off!! :( sad but true.

    But at least based on the example of this discussion, sometimes we can help ourselves explain something... maybe it`s the details that someone is picking on, but it`s better than nothing, at least we`re going back to the roots of electronics (which we sometimes forget).

    For example, it hurts me when someone writes "tension is flowing"... well, I can`t ignore something like that... too many F`s have happened to me in the past for something like that :D
  • #15 2939205
    przemo.t
    Level 27  
    Posts: 994
    Help: 79
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    Maybe a little off topic, but whatever, the guy who asked the topic still ignores the matter

    cackoarek wrote:


    For example, it hurts me when someone writes "tension is flowing"... well, I can`t ignore something like that... too many F`s have happened to me in the past for something like that :D


    And my friend, we have the same "problem", I will never forget how I got a good shot from a physics teacher (primary school) when I said that there was "alternating current" in the socket. :P . Some things you never forget, such a "childhood" trauma :D

    Regards
  • #16 2940131
    Preskaler
    Level 40  
    Posts: 6402
    Help: 490
    Rate: 1041
    She was some kind of perverted sadist!
    Tension cannot flow even though "everything flows!"
    As Mr. Tarei said! :D
    (Panta rei)
  • #17 2940163
    cackoarek
    Level 26  
    Posts: 738
    Help: 97
    Rate: 59
    Preskaler wrote:
    The voltage cannot flow......


    Well, I saw it recently, even in the topic... it immediately reminded me of my technical school days... it was a trauma!!
  • #18 3184721
    hotek
    Level 15  
    Posts: 188
    Help: 8
    Rate: 10
    Listen, I have a question... How to turn 60V alternating current into direct current. And how to make a rectifier bridge exactly... :D
  • #19 3184751
    Balu
    Level 38  
    Posts: 4397
    Help: 323
    Rate: 48
    Tell us where you got the 60V and what you want to power it with.
    And learn to read with understanding.
  • #20 3185409
    Arnold_S.
    Level 26  
    Posts: 883
    Help: 49
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    Yes Sir. And learn to use the "search" option and Google (enter "rectifier bridge" and a miracle will happen).
  • #21 3186098
    Preskaler
    Level 40  
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    If you want to make 60V AC - DC, use a bridge or a single diode and capacitor (to reduce ripple). The capacitor must be rated at (at least) 100V because the constant voltage (without load will be approximately 90V!) The capacity of the capacitor (and possibly other elements) depends on the current consumed (size) and possible permissible ripples.
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Topic summary

✨ To convert alternating current (AC) to direct current (DC), a rectifier is required, typically using diodes or a rectifier bridge. A half-wave rectifier can be implemented with a single diode, while a full-wave rectifier can be constructed using a bridge configuration with four diodes. After rectification, a capacitor is often used to smooth the output, reducing ripple and providing a more constant voltage. The choice of components depends on the specific voltage and current requirements, as well as the acceptable ripple factor. For example, when converting 60V AC to DC, a capacitor rated for at least 100V is recommended due to the peak voltage being approximately 90V without load. Additional details about the load and current consumption are necessary for precise component selection.
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