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Type: Posts; User: FvM

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  1. Closed: Re: Bilinear switched capacitor resistor equivalent resistance

    The capacitor is charging from -ΔV to +ΔV in phase 1 and back in phase 2, total q = 4CΔV.
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    Closed: Re: Solve Equations Verilog

    As shown by wwfeldmann, the post #1 equation has real roots. Similarly the equation in post #5 has two real roots, x=3.987 isn't among it, but x≈-1.2 and x≈1.3.

    Post #1 suggests that you want to...
  3. Closed: Re: LTspice...splitting LT1243 output into two separate pulse streams

    There seems to be a "small" problem. LT1243 is a current mode controller. As far as I understand, there's no way to generate pwm output without using the current sense input, which isn't feasible...
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    Closed: Re: 750 MHz Band Attenuation Filter

    You need the complete pass- and stop band specification to determine the filter effort, e.g. minimal order.
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    Closed: Re: Solve Equations Verilog

    It's power of n, not exponential function and can be calculated as cascaded multiply.

    What do you want to achieve? The equation has multiple solutions, but can be calculated at compile time.
  6. Closed: Re: Grid tied inverters will result in high mains voltages above 300VAC..do you agre

    Not particularly a problem of grid tied inverters. You observe different levels of short term overvoltages and surges in the grid. For a serious discussion, you need to analyze grid impedances and...
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    Closed: Re: Two Qs re: resistance

    Where did you get 5.3k? Resistance of parallel circuit is 10*4.7/(10+4.7) = 3.2k.
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    Closed: Re: Wrong simulation for VP0808 mosfet?

    Do you understand the meaning of Vgs(th) specification in datasheet, particularly the wide threshold voltage range?
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    [SOLVED]Closed: Re: Metastabilty and data loss

    The OP apparently doesn't care for consistency of multibit data. I already asked about this point and he insists on discussing correctness of single bit data.

    Asynchronously sampled single bit...
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    [SOLVED]Closed: Re: Distance between MCU-Phy-Magnetics-RJ45

    The Pulse application text is an undeclared quote from an SMSC/Microchip application note. http://ww1.microchip.com/downloads/en/Appnotes/en562748.pdf

    If distance actually creates common mode...
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    Closed: Re: Capacitor as a MOSFET in RC Circuit

    You originally asked about MOSFET acting as capacitor, now you switched to common drain amplifier. It's time to clarify the topic and show a schematic of what you are trying to achieve.

    - - -...
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    [SOLVED]Closed: Re: Distance between MCU-Phy-Magnetics-RJ45

    Where do you see this specification?
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    [SOLVED]Closed: Re: Metastabilty and data loss

    That's not possible.
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    Closed: Re: Flow of Current in IGBT

    O.K., so the last point in my interpretation applies, they are not using the split output feature, just basic T-circuit (M)NPC https://www.vincotech.com/products/by-topology/more-about-mnpc.html
    ...
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    Closed: Re: 1.5kw DC to DC Boost Converter Circuit

    Parallel circuit would be obviously necessary to build a 1.5 kW 12V input full bridge with IRFP064. You should particularly look at Rds,on and related voltage voltage drop. Better go for a 40V MOSFET...
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    Closed: Re: Flow of Current in IGBT

    Do you understand MNPC topology? Do you understand the purpose of split output feature?...
  17. Closed: Re: Beginner question about a micro-controller project

    The accelerometer output levels discussed in this parallel tread https://www.edaboard.com/showthread.php?387926-Confusion-with-relating-the-sensor-output-voltages-from-its-datasheet&goto=newpost...
  18. Closed: Re: Confusion with relating the sensor output voltages from its datasheet

    I agree that the datasheet is very clear about expectable output voltage.

    But if you plan to measure 500 ug acceleration, you should carefully read the datasheet info about noise density and...
  19. Closed: Re: Stability issue of the closed loop feedback in fully differential ampliifer

    Whats's the purpose of feedback resistor in your simulation circuit? If it's DC bias, the feedback path should be filtered in a way that it doesn't ruin phase margin.
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    Closed: Re: Charging Voltage for a 1.2V NiMH Battery

    Charging VR450 continuously with 20 mA will not quickly damage it but probably reduce its lifetime by overcharging it. Continuous current without voltage limiting shouldn't be higher than the...
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    [SOLVED]Closed: Re: Metastabilty and data loss

    You should ask yourself what you consider wrong data?

    1. Single bit data, toggling at arbitrary times. You'll either read the old or the new data. Both or equally correct, just different.

    2. A...
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    Closed: Re: Connect MQ135 Gas Sensor to Raspberry Pi 3B+

    Values read for unconnected (floating) ADC inputs are meaningless. You can either connect known DC voltage for test or just ignore these values. Check the values for ADC0 input connected to sensor.
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    [SOLVED]Closed: Re: Distance between MCU-Phy-Magnetics-RJ45

    You have to check impedance matching and termination for each connection. Ethernet is usually terminated at the PHY, in this case, there are no restrictions for PHY to magnetics or magnetics to JJ45...
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    Closed: Re: How to create a voltage selector circuit

    The usual solution, also implemented in LM3915 dot matrix mode is working like below:
    - have comparators for each threshold level
    - have a priority encoder to pass only the output of the most...
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    Closed: Re: Charging Voltage for a 1.2V NiMH Battery

    V450HR has a datasheet, it's strongly suggested that you observe the specifications when designing your charging circuit.
    ...
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