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  1. I

    Dual Tracking Supply Design Not Working as Expected

    Are you feeding the circuit 36V floating or
  2. I

    Capacitor Voltage

    The voltage rating on a capacitor is dictated by its dielectric. Thats the stuff between the "plates".
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    Help...problem with test circuit of SG3524..with duty ratio.

    "Load" as in draw a load current out of the output.
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    Is there something missing in gate driver(IR2117) circuit of a buck converter? h

    Your schematic shows that the Vcc pin is only connected to a diode anode, the Vcc pin also needs to be connected to a voltage (i.e. input voltage to the buck converter). If you don't connect Vcc to a voltage of course your not going to have a output!
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    Is there something missing in gate driver(IR2117) circuit of a buck converter? h

    How about applying the converters input voltage to the Vcc pin of the driver.
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    thesis

    In institutions of higher learning (at least in the States), it would be extremely unusual for an undergraduate degree to require the submittal of a thesis. Now a senior/year end project is a different story, but that not a thesis.  From Bertz
  7. I

    LC filters

    Do the math and plot the transfer funtion, then you will know (and should understand) what it does.
  8. I

    Quick Heaters

    If you need/want the mold to cool quickly, you want a material like "ceramic" which has good thermal conductivity, but a low thermal capacity. Basically somethng the conducts heat but won't retain any.
  9. I

    Program launch: "Get Paid to Publish your Project!"

    To Hero999's point, the first project (Temp data logger)... It says: Pin 7 in the schematic is hard wired to +5V... how is that going to work?? Or is it just to early in the morning and I need more coffee?
  10. I

    Help...problem with test circuit of SG3524..with duty ratio.

    Put some minimal load on the output... say 20%.
  11. I

    Help...problem with test circuit of SG3524..with duty ratio.

    These are both buck converters. First, what do you have for a load? You gotta have one, or else it will pulse skip or just shut down once the 500
  12. I

    More PWM questions

    VRM's go even higher... ~100A Not really! http://news.thomasnet.com/fullstory/Voltage-Regulator-Module-is-Intel-VRM-11-0-compliant-818760
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    More PWM questions

    Look thu some of these... http://focus.ti.com/docs/training/catalog/events/event.jhtml?sku=SEM401001
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    Filters

    A "filter" with a crystal?? Care to provide an example?
  15. I

    smps of tv..

    Without the transformer (if it
  16. I

    Evaluating total energy usage from just DC voltage and current

    A 50A shunt @ 50mV is only 2.5W dissipated and something like the AD708 has a 30
  17. I

    Evaluating total energy usage from just DC voltage and current

    What kind of current levels are you talking about here? Is there a reason it has to be a DC clamp-on vs. a shunt resistor?
  18. I

    Element and manufacturer identification?

    Yup... it a General Semiconductor (bought by Vishay I think). It could also be a zener or a transient suppressor...
  19. I

    Inverting Op Amp

    The 741 can't swing to GND, you need a negative supply of a few volts.
  20. I

    electronics

    Google "transistor bias point"
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