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Type: Posts; User: FvM

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    Closed: Re: Power pulse generate 30V 400A

    If the duty cycle respectively average power is low, I would suggest an analog output stage, powered by a capacitor bank. Take care that the output transistors are specified for linear operation.
    ...
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    Closed: Re: I/Q baseband Modulator Demodulator

    BPSK doesn't involve quadrature modulation, see https://en.wikipedia.org/wiki/Phase-shift_keying
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    Closed: Re: 0-100uA analogue meter (needle) to show 0-10v

    Already heard about ohms law? Use a series resistor. 10V/100µA = 100 kOhm.
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    Closed: Re: Wrong simulation for VP0808 mosfet?

    I thought you already answered the question yourself. You have explained the simulation result, the real MOSFET has apparently much lower threshold voltage, well possible according to the datasheet.
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    Closed: Re: LCD 16*2 Data Sequence Flow chart

    Confusing description. Actually E is pulsed high for Pweh >= 450 ns.

    E is pulsed for each byte read from or written to the LCD controller. In so far I don't understand why it's described only as...
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    Closed: Re: What's the rpoblem of this MIC circuits?

    Only with the necessary corrections, e.g. the suggested gain setting resistor.
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    Closed: Re: What's the rpoblem of this MIC circuits?

    How did you arrive at this circuit? It doesn't seem right.

    Can you give a gain specification?
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    Closed: Re: Ferrite beads for EMC testing

    There are quite different types of ferrite beads, e.g. beads on leads, surface mount beads, chip beads, wound beads, with different impedance and frequency range and current rating. You should narrow...
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    Closed: Re: What's the rpoblem of this MIC circuits?

    Forgot to show the circuit?
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    Closed: Re: How to access Micron MT25Q nor flash

    It's more likely that the preceding write didn't succeed.

    It's not clear how the waveforms (apparently from a simulator) are related to your microprocessor hardware.
  11. 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...
  13. 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.
  16. 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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