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  1. 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?
  2. 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.
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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...
  16. 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
  17. 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
  18. 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?...
  19. Closed: Re: Power supplies combination to produce +15Vdc and -15Vdc ???

    Alright, so bottom line the ground (chassis or earth) should not be connected to common?

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    Thanks Boss...there should be no concerns if either of the power supplies...
  20. Closed: Re: Fuse replacement 110V 5A to replace 220V 5A ?

    thanks Boss...any simple explanation why? thanks in advance
  21. Closed: Power supplies combination to produce +15Vdc and -15Vdc ???

    Hello All...we've got the original power supply with +/- 15Vdc output. But it blown already. I am thinking to combine two 15Vdc power supplies to replace the original as shown in the attached image....
  22. Closed: Fuse replacement 110V 5A to replace 220V 5A ?

    Hello All...have tried to google also but still cant find solid conclusion. Please help me understand, the original fuse is 220V 5A. Is it ok if I replace with 110V 5A? thanks
  23. [SOLVED]Closed: Re: A relay coil rated 24V- (is this 24Vac or 24Vdc ?)

    Thanks for translating mr KlausST...thanks also @Hesambook...problem solved :-)
  24. [SOLVED]Closed: A relay coil rated 24V- (is this 24Vac or 24Vdc ?)

    Hello guys...sorry for this simple questions. I got relay part number v23037-a0005-a101, the rated coil voltage is 24V- ? I search for datasheet but also not stating if V- is DC or AC. Anyone have...
  25. Closed: Re: Anyone please help identify what component is this with t4N marking code?

    Thanks betwixt...have tried to search also the datasheet, but have no luck. Really stuck from here already, I would like to find replacement/substitute but a bit difficult without knowing the part...
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