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Grounding 120w power supply converter 2016-07-24T20:52:29+00:00

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  • Rod Cotter
    July 24, 2016 at 8:52 pm
    Post count: 0
    #6585 Reply |

    I am using a DROK car power supply converter for radio. It is to be used in a 6 volt system with positive ground. How do I ground the output side of the device? I have experienced excessive current through the ground side of my radio, and don’t want to damage my radio. On the input side, I have the + wire to ground, and the – wire to power (negative). Since there are no directions for using the device with positive ground, I am confused. (X000WR3XFB)

    Thank you for your help

    Rod Cotter

    Drok
    Keymaster
    July 25, 2016 at 6:46 am
    Post count: 2971
    #6596 Reply |

    Hello Rod Cotter,
    Thank you for writing in.
    Please ensure that the ground is on positive.
    For the output, the yellow wire is connected to the output + and the black wire is connected to output -.
    Hope this can help you.
    Best regards

    Rod Cotter
    July 25, 2016 at 11:42 am
    Post count: 0
    #6599 Reply |

    Your reply says to be sure ground is on positive, this is still not clear. Normally, ground would be the negative connection. Should the negative connection on the device be to ground? If so, this would effectively reverse the polarity of the input.

    Currently, I have the red (+) wire to ground, and the black (-) wire to the negative side of the battery.

    Note, this vehicle is positive ground.

    Thank you for your help.

    Drok
    Keymaster
    July 26, 2016 at 1:41 am
    Post count: 2971
    #6615 Reply |

    Hello Rod Cotter,
    So sorry for causing you misunderstanding.
    We just want you to ensure the vehicle is positive ground.
    Your input wiring is right.
    Best regards

    Rod Cotter
    July 28, 2016 at 2:36 am
    Post count: 0
    #6704 Reply |

    Experienced a problem using a DROK 6v to 12v power converter to power a CB radio in a classic car. Wiring was double checked for proper voltage and orientation. However, when eye system was powered up, the radio immediately began to smoke, and blew a protection diod. The radio technician said it appeared a “back feed” surge Had occurred, causing the damage. Since CB radios are grounded through the antennae, another attempt to use this system is certain to damage the radio again.
    How can the system be wired to avoid damaging the radio? Remember, this is a 6v positive ground vehicle.

    Rod Cotter

    Rod Cotter
    July 28, 2016 at 10:24 pm
    Post count: 0
    #6733 Reply |

    There has to be a common ground, or all devices would have to be isolated from the vehicle chassis. Radios are usually mounted to the chassis, and are Thus grounded. I need help with this one. I don’t want to damage another CB radio by using this power source.

    Drok
    Keymaster
    July 29, 2016 at 4:05 am
    Post count: 2971
    #6745 Reply |

    Hello Rod Cotter,
    Could you please tell us what is the power supply for your 6V system with positive ground?
    Generally, the power supply from a car is DC 12V.
    It is better that you can send us some images of your wiring to let us check the details.
    You can send us the images by email(service at droking dot com).
    With your help, we can find a solution more quickly.
    Best regards

    Rod Cotter
    July 29, 2016 at 12:19 pm
    Post count: 0
    #6748 Reply |

    I will send an image a little later. The power supply is a 6v battery, with a positive ground (Model A Ford). Thus the need for an up conversion device, to provide 12v power for such devices as CB radios, GPS, etc. while touring in the car.
    You have confirmed that the input connections are correct. On the output side, I have wired the device directly to a series of 3 power outlet sockets. I have confirmed the proper polarity with a VOM, and confirmed 12v output. I can simply plug various Devices into this power source. The devices are wired with the two wires from the individual device hard wired to the male plug in. It worked fine with a hand held CB radio, which is not grounded to the car. The problem occurs with a normal CB radio which utilizes an antenna which is grounded to the vehicle.
    Several friends successfully use a similar device from another supplier, so there must be a simple answer. A large number of club members are waiting to order your power source, but are waiting for an answer to this problem. I appreciate your replys, and hope to resolve this soon.
    Rod

    Rod Cotter
    August 1, 2016 at 11:54 am
    Post count: 0
    #6762 Reply |

    Since I have verified proper wiring orientation, and since a retired automotive electrical engineer verified proper wiring and polarity, and since two other club members have used the same power converter successfully, I must conclude that the problem I encountered was due to a defective power converter. The device clearly has an internal short.
    Therefore, I need to know how to obtain a replacement. Please let me know if I should ship the defective power supply back to you, and where to return it.
    Thank you for your assistance.
    Rod cotter

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