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  1. Replies
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    Closed: Re: Halogen Lamp Limit Resistor?

    Great! thanks for the clarification...
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    1,762

    Closed: Re: Halogen Lamp Limit Resistor?

    Will connect the resistor in series with halogen :-)
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    399

    Closed: Re: Extend life of UV lamp.

    I found the part number in ebay, it says Mercury Vapor UV Emitter Bulb.
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    399

    Closed: Extend life of UV lamp.

    Any tips and/or info on how to extend life of UV lamp. Thanks in advance.
  5. Closed: Re: Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply

    OK so for this case, I will use resistors. I got here 20-ohm/25W (18qty) + 10-ohm/20W (2qty). Total 380-ohms. I want to test with 1A load set-up...Thanks to all.
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    Closed: Re: Halogen Lamp Limit Resistor?

    Thanks for all the knowledge sharing guys, ok i will try using resistor method first :-)
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    855

    Closed: Re: IFC TG179 TO-92 (transistor)

    Ok i replaced the TG179 with mosfet TN0604N3...Will update you once we test at machine. Probably by next week...Wish me luck :-)
  8. Closed: Re: Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply

    Thanks, possible to share the schematic diagram? Or are you selling this unit?
  9. Closed: Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply

    Hello again all...I got a 380Vdc (2 to 3A) power supply here, i am on the way of building a load test station. First i thought of using a series of high power resistors. But have heard that...
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    Closed: Re: IFC TG179 TO-92 (transistor)

    Hello All...this TG179 for me is mosfet and not transistor....Because of zener diode connected on the middle pin which i believe a gate pin. Any opinion from you guys? thanks
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    Closed: Re: Halogen Lamp Limit Resistor?

    Hello Brian...this actually the original specs from the machine.
  12. Replies
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    Closed: Re: Halogen Lamp Limit Resistor?

    Thanks, so it is advisable to use 90%...like my halogen lamp is 100W, I should powered it up by 90% (or 90W)? Then can I add resistor or is there any halogen driver circuit you can recommend? thanks...
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    Closed: Re: Halogen Lamp Limit Resistor?

    Thanks both of you....can you recommend a no-heat_sink needed mosfet that can handle 12Vdc/100W halogen lamp? thanks
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    Closed: Re: Halogen Lamp Limit Resistor?

    My apology for not being clear on first post. Actually it runs with 12Vdc. Thanks
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    Closed: Re: IFC TG179 TO-92 (transistor)

    The first resistor connected to +15Vdc is 100K and the next resistor is 200 ohms. The part number of zener diode is 1N4577. Any expert please help identify this IFC TG 179 is a mosfet or...
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    Closed: Re: Halogen Lamp Limit Resistor?

    Hello betwixt, could you please share me link on how it looks like to cut in between the simple timer IC and a MOSFET switch? thanks
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    Closed: Halogen Lamp Limit Resistor?

    Hello All again...we have a halogen lamp rated 12V, 100W (with fixed power supply input). Let say we want only to power up 50% (like 50W), is ok to add resistor in series? From ohms law that halogen...
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    Closed: Re: IFC TG179 TO-92 (transistor)

    Thanks for the response mr KlausST...I dont have schematic, and so I sketched it myself...how do you find it? The pin configuration also like hard to guess...

    154654
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    Closed: IFC TG179 TO-92 (transistor)

    Hello All...Have tried my best searching the datasheet of this part but I could not find it...Hope someone can help me...thanks in advance.
    Marking:
    IFC
    TG179
    9831

    154632
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    Closed: Re: Diode value in voltage doubler circuit

    Thats the only markings we've got:

    ED2573
    EDIF0632
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    Closed: Re: Diode value in voltage doubler circuit

    Thanks a lot for the time spent searching the manual online...I just opened it I cant see high voltage diode from the schematic but there's no value.

    - - - Updated - - -



    Ok great...let me...
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    Closed: Diode value in voltage doubler circuit

    Hello all...I am repairing a high voltage glassman power supply. I found 2 diodes blown but I cant figure out the value even I google it. It looks like it in the voltage doubler circuit with...
  23. Closed: Re: Power supplies combination to produce +15Vdc and -15Vdc ???

    Wait a second...please check the video below, he is combining 2 power supplies and saying connect to building ground??? Any opinion guys?

    https://www.youtube.com/watch?v=SHMwtO4QZcA
  24. Closed: Re: Power supplies combination to produce +15Vdc and -15Vdc ???

    Ok to support my question and become more clearer...in the attach image, that is actually we plan to do. Really appreciate any inputs from you all...thanks in advance.

    152462
  25. Closed: Re: Power supplies combination to produce +15Vdc and -15Vdc ???

    thanks to all for sharing your knowledge...i would like to add one last question...what if I connect together different power supply voltage output like 15Vdc and 5Vdc. Should not be a problem right?...
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