How to check 7905 Voltage Regulator with multi-meter practically.

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  • Опубліковано 30 січ 2025
  • This video will show you how to test 7905 voltage regulator with multi meter practically...

КОМЕНТАРІ • 17

  • @frontier9
    @frontier9 3 роки тому +4

    Yes, its great to see ... because your input is positive voltage, its a negative voltage regulator. When you have a negative rail to regulate then the output goes to the filter side and the input goes to the regulated side ... according to some diagrams. Others put the negative voltage to the input ... thinking thats correct. Since they are "inputing" negatve current and outputing negative current. So seeing you put the postive to the input makes me think the former is correct.

  • @chamindaruwan5617
    @chamindaruwan5617 5 років тому

    great video very clear demonstration of 7905...thank you...

  • @nikhilsingoori8241
    @nikhilsingoori8241 4 роки тому +7

    Bro i know your trick u interchanged polarities of multimeter it wont directly give -5 v

    • @amitghosh6966
      @amitghosh6966 3 роки тому +2

      Yes. Wrong polarity voltage

    • @QanaDiys
      @QanaDiys 4 місяці тому

      What a misleading video because if you put +ve to the input Voltage Regulator will be shorted and blown 💣

  • @AhmadAhmad-gh5op
    @AhmadAhmad-gh5op 2 роки тому +2

    79 series always accept -ve input....we cant feed +ve voltage, as you are doing....

  • @amitghosh6966
    @amitghosh6966 3 роки тому +2

    You used positive & ground rail of power supply but Lm7905 needs Ground & negative. So ic will get damage due to wrong polarity

  • @warnaabeynayaka3773
    @warnaabeynayaka3773 5 років тому

    easy to understand..explain other component also...thank you..

  • @sifaelectron
    @sifaelectron 4 роки тому

    Good brother i am persia

  • @AhmadAhmad-gh5op
    @AhmadAhmad-gh5op 2 роки тому +1

    you are using meter probe with reverse direction...

  • @maushas
    @maushas 4 роки тому +1

    Good video but Stupid music. Why you need this music?

  • @bjornodendaal8752
    @bjornodendaal8752 3 роки тому +1

    This is not a good video yiu can't put negative on pin 1 and positive on pin 2 it's suppose to be the other way around.

  • @haribabu564
    @haribabu564 4 місяці тому

    Wrong the pin terminal itself wrong if its connected it will blown away

  • @mndsaini01
    @mndsaini01 2 роки тому

    background music is pure garbage

  • @mhamedfares9109
    @mhamedfares9109 4 роки тому

    Turn from English to Arabic

  • @AJAIKRISHNA5
    @AJAIKRISHNA5 10 місяців тому

    Wrong