DIY Power Supply for Car Audio Devices : No Engine Noise

Поделиться
HTML-код
  • Опубликовано: 30 ноя 2024

Комментарии • 35

  • @johnarcher9480
    @johnarcher9480 Год назад +2

    Hot tip (pun intended) tin your sliding iron. All you need is a bit of solder and a sponge. Though that tip is bad enough to maybe need a brass “scrubby”.
    Your soldering will be faster, easier, and stronger.

  • @milanpetrovic8929
    @milanpetrovic8929 Год назад +2

    If this works I am installing an icon to my home with your channels photo and I will call you The Savior from that day onward. heheheh Many many thanks.

    • @setnfix
      @setnfix  Год назад

      Thank you. Use a good color laser printer 🙂

  • @mushupat
    @mushupat 9 месяцев назад +1

    I've never seen worst solders in my life!

    • @setnfix
      @setnfix  9 месяцев назад

      Thank you :-)

  • @carlosliendo3607
    @carlosliendo3607 11 месяцев назад +1

    Perfect example of how "not to solder" something...

    • @setnfix
      @setnfix  10 месяцев назад

      In practice, yes, you must use a PCB.

  • @mcinco70
    @mcinco70 Год назад +1

    Can i use an ultra capacitor or a super capacitor instead of electrolytic?

  • @bilalbezen9154
    @bilalbezen9154 2 года назад +1

    Thank u for this information

    • @setnfix
      @setnfix  2 года назад

      you are welcome

  • @nimsaraledakalanka8603
    @nimsaraledakalanka8603 2 года назад +2

    ( Video playback 4.06 time)
    How come this has a sinhala (srilanka) audio part?

  • @keijojaanimets819
    @keijojaanimets819 11 месяцев назад +1

    104 also!

    • @setnfix
      @setnfix  11 месяцев назад +1

      yes

  • @kopa8724
    @kopa8724 Год назад +1

    Very poor soldering!! It will decrease the voltage, heat up the joint points. Also the wires diameter is too small for powering car audio. Diodes will also drop the voltage. Beware!!

    • @RogerDodger10-4
      @RogerDodger10-4 Год назад

      yup, this a mess of a job

    • @setnfix
      @setnfix  Год назад

      When engine on, the volate level is arround 14.2 volts. therefore, the voltage drop is not an issue.

    • @tastenheber
      @tastenheber Год назад

      The tip of the iron is way too small for this job.

  • @simengfu7352
    @simengfu7352 Год назад

    this is essentially a low-pass filter. peronally i wouldn't use the diode since there is vertually impossible to get reverse current from the car power unless you use this device directly right after the alternator and before the rectifying circuits. however, i would put a schottky as flyback diode with the inductor for back emf protection. Without the back emf protection, thay inductor might fry your audio equipment once you turn off the power.

    • @timwheeler1503
      @timwheeler1503 Год назад

      What is the best way to build a noise filter for car audio?

    • @simengfu7352
      @simengfu7352 Год назад +1

      @@timwheeler1503 Oh, this is actually a rather big topic. The aim of the filter is to remove the fluctuating voltage and since equipments within a car are all conneted together which including both resistance (like lighting) and inductance (like fans) load. Inductance load can and will introduce fluctuating voltages within the whole electrical system and the filter can only remove or rather, improve, some of the fluctuation. If you are serious about this, use an isolating power supply for your audio system. For a cost-balanced solution you probably could use a buck converter with a LDO. For cheapest solution, you can use a inductor with a capacitor form as a Low Pass Filter but be aware that flyback diodes are recommanded to protect both your car and your audio equipment. Let me know if I can be more helpful.

    • @lialex2517
      @lialex2517 4 месяца назад

      however, i would put a schottky as flyback diode with the inductor for back emf protection-------
      Can I ask put on where?

    • @lialex2517
      @lialex2517 4 месяца назад

      @simengfu7352 Can I ask schottky put on where? how to do it? Thanks

    • @simengfu7352
      @simengfu7352 4 месяца назад

      @@lialex2517 you put that diode across the inductance load parallely and against the power current direction. Which means Positive (+) of the power connect to the negative (-) of the diode and the positive (+) of the load; Negative (-) of the power connect to the Positive (+) of the diode and Negative (-) of the load. In this way, when power is on, the load will receive power from the supply as normal but not the diode since the negative is side connect to the positive side; when the power is off, the energy stored within the coil (fan) will be released back to the circuit but the current is reversed, now the diode will be the 'low resistance path' for the current to go back to the coil agian instead of going back to the power supply reversely until the energy is exhausted.

  • @randallhatton4819
    @randallhatton4819 2 года назад

    Why the diodes?

    • @randallhatton4819
      @randallhatton4819 2 года назад +1

      Is it to prevent people from hooking up power backwards?

    • @bluemgt06
      @bluemgt06 2 года назад +2

      @@randallhatton4819 that is one use but not the reason in this case. In this case it prevents any ac current that may be induced in the system.

    • @setnfix
      @setnfix  10 месяцев назад

      you can see more in the videos

  • @JM-xm1wg
    @JM-xm1wg 7 месяцев назад +1

    Very bad soldering

    • @setnfix
      @setnfix  7 месяцев назад

      Yaa :-), when you do, do it well :-)

  • @kopa8724
    @kopa8724 Год назад +1

    Very poor soldering!! It will decrease the voltage and heat up the joint points. Also the wires diameter is too small for powering car audio. Diodes will also drop the voltage. Beware!!

    • @setnfix
      @setnfix  Год назад

      This is a sample only, When you apply practically, you have to solder those on a board. Since the voltage is arround 14.2V while battery is being charged, there is not voltage issue.