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Is the solenoid a 6 volt solenoid, and if so what limits the voltage to it via the TIP107 darlington transistor?

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  • dryjam Sep 15, 2010

    No, the machine is a Christie battery charger Model 500 QRC-2 multi voltage output (6/12/24v).
    The solenoid which switches the output is 6v and is driven by a TIP107 transistor on a control card.
    I wish to know is it meant to be a 6v solenoid, and if it is what or how is the voltage to the solenoid
    limited when the selector switch is put in the 12 or 24v position.I can't find a circuit or shematic

  • dryjam Sep 30, 2010

    The machine is not a GPS The machine is a Christie battery charger Model 500 QRC-2 multi voltage output (6/12/24v). The solenoid which switches the output is 6v and is driven by a TIP107 transistor on a control card. I wish to know is it meant to be a 6v solenoid, and if it is what or how is the voltage to the solenoid limited when the selector switch is put in the 12 or 24v position.I can't find a circuit or shematic anywhere.

    The selector switch is on the primary side of the transformer switching 240v to the appropriate tapping.

    The device which switches the rectified supply from the secondary side of the transformer is a solenoid

    exactly the same as solenoids on car engines etc.

    The reason why I ask is it meant to be a 6v solenoid is because someone else has been playing around

    with the charger.

    I replaced one power diode on the rectified supply heatsink, and found the darlington transistor on the

    control card open circuit and am about to replace it.

    I would appreciate some technical advice

    Thank you


  • dryjam Oct 05, 2010

    Is there anyone out there who can give me some sort of an answer?
    Am I putting the question/info in the right area?



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Yes, it's a 6 volt RELAY, not solenoid. The switching system, transistor and all is powered directly from the 6 volt output.

Posted on Sep 27, 2010

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What are u talking about here?? is this a GPS which is where u have this listed "Problem with the GPS Devices" is this what u want?

Posted on Sep 10, 2010


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