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Type: Posts; User: FvM

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    Closed: Re: Understanding the USB Protocol

    You want to read the class specification documents. CDC and HID don't use all transfer types, e.g not isochronous. CDC implies control, interrupt and bulk transfers, HID only control and interrupt.
    ...
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    Closed: Re: HEI primary current duration

    No damage, but also no high voltage output. Primary fly-back voltage needs to go up to 600V for 50000V secondary.
  3. Closed: Re: Flyback SMPS power MOSFET getting hot? uc3843 pwm converter

    RCD snubber is the appropriate method to absorb primary overvoltage caused by transformer leakage inductance. You have to check the actual primary voltage and current waveforms, an additional RC...
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    Closed: Re: Data acquisition using PIC starter kit

    Think about an ADC with DMA support and USB high speed or 100 Mbit Ethernet interface. Suitable CPUs are e.g. PIC32 (new MZ family has USB HS) or ARM (e.g. STM32F4xx).
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    Closed: Re: HEI primary current duration

    Back emf is is causing the ignition spark (fly-back converter principle), you don't want to cut it.
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    Closed: Re: Phase Difference calculation in cadence.

    What's the actual problem? Verification of your "phase shifter" or designing a phase or flight time measurement system?

    Does your "phase shifter" produce frequency independent phase shift,...
  7. Closed: Re: Runtime of clock using alkaline D cells instead of AA batteries

    Doesn't this demand for a transformer supply with battery backup? The battery is only discharged during power failure then.
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    Closed: Re: Current rating of Thermostat

    Means 16A resistive, 4A inductive load.
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    Closed: Re: Relay selection for Ultrasonic signals

    I don't see a necessity to use GHz relays for 25 MHz signal. I would probably select a slightly bigger relays with higher contact breakdown voltage.

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    Impossible with...
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    Closed: Re: Lock -in Amplifier/ tuned amplifier in DSP

    You can design FIR filters in Matlab and import the filter coefficients to the Intel FIR compiler tool.

    Lock-in is a different approach involving all-digital PLL (NCO, phase detector, synchronous...
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    Closed: Re: SATA SSD connection tx to tx or rx?

    SATA A/B assignment on the M2 connector should be according to the usage with standard SATA connector.

    155609
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    Closed: Re: Single conductor inside hollow conductor

    If the measurements are correct, a large share of the primary current runs as magnetizing current into the transformer inductance. You only told about AMCC-100 core (an amorphous cut tape) but...
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    Closed: Re: Pulse distortion after amplification

    Good idea. I guess you have input or output AC coupling and the bias point is shifting when the input signal is rectified in saturated operation.
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    Closed: Re: How good is ultiboard?

    Firstly I'd like to hint to a sticky thread on top of this forum https://www.edaboard.com/showthread.php?18145-Stop-the-is-xxx-software-is-better-than-xxx-software-topicz

    It makes a necessary...
  15. Closed: Re: Power harvester evaluation board and antenna issues

    Are you serious? Using an amplifier with energy harvesting? Did you understand the basic idea?

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    Energy harvesting is intended to supply ultra low power systems from a power...
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    Closed: Re: Lets take a look on a linear amplifier

    There may be good reasons to implement a linear (class AB) amplifier for your purposes, I don't apply to decide yes or no.

    You have implicitly specified amplifier output voltage and current by...
  17. Closed: Re: In distributed amplifiers, is it total input capacitance of the gain stage or Cgs

    Seriously, does the discussion about terms help in any way to answer the original question?

    Does the term "artificial transmission line" clarify anything compared to "LC delay line" (my favorite...
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    Closed: Re: Extracting energy from gyroscope precession

    The swing example is inappropriate for the original gyroscope problem. Swing involves periodical transfer between potential and kinetic energy. Work is done by weight shift which dynamically changes...
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    Closed: Re: Adapter design for pressure sensor

    Doesn't sound bad in general, but some details aren't quite clear. Do you mind to share a CAD drawing of the intended sensor mount?
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    Closed: Re: Operational amplifier driving capability test

    The described setup (setting a fixed output voltage) doesn't fully test "driving capability", you want to evaluate the available output current over a defined output voltage range.
  21. Closed: Re: Problem adding reset to master slave D-FF for phase detector

    In a regular master slave FF, the asynchronous reset signal is expected to immediately reset both stages independent of the clock state, that's what we apparently see in your waveforms, although they...
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    Closed: Re: Cheap Mains harmonics tester

    Individual harmonics have different limit values. THD isn't enough.

    As for the general question, FFT is supported by most modern digital scopes. If you leave some margin to limit values, the...
  23. Closed: Re: Higher Current Consumption than expected with AFE and embedded Flash

    Hard to give less information…

    Where do you see the current peak and when? You should be able to trace the current path down to the component generating the peak.
  24. [SOLVED]Closed: Re: Suppressing the spacing in $fwrite command of Verilog

    Review System Verilog language reference, paragraph 21.2.1.3 Size of displayed data.

    It's regular C format specifier syntax, by the way.
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    [SOLVED]Closed: Re: IGBT Overshoot and Weird Slope

    It depends. Some thermal pastes with high thermal conductivity are metal filled and also electrically conductive. But as far as I can see from the photo you have separate heat sinks for each IGBT. So...
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