FvM
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Today, 12:41dpaul replied to a thread My test pattern is not like should be! Somebody can help me please? in PLD, SPLD, GAL, CPLD, FPGA DesignHello OP, As I deduce that you are looking to learn about video frame buffers, see here.......9 replies | 464 view(s) -
Today, 11:47The ringing occurs in discontinuous mode when the rectifier current flow stops. It's a high impedance/low energy oscillation (frequency set by main...23 replies | 696 view(s) -
Yesterday, 21:50Or referring to ∫Vdt (ET in your terminologie) I = ∫Vdt/L8 replies | 358 view(s)
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Yesterday, 16:07FvM replied to a thread Experienced CADSTAR user's in PCB Routing Schematic Layout software and SimulationYou should take a look at Pulsonix. The Software has been developed by former Racal Redac (the origin of Cadstar) guys. The look and feel is still...2 replies | 160 view(s)
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Yesterday, 16:03FvM replied to a thread Solving issues in my PCB grounding in Professional Hardware and Electronics DesignI guess there's no high voltage generated on the board. Hence it's a problem of the power supply. What is it?2 replies | 155 view(s)
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Yesterday, 09:31Should not be. Better you ask this in the Xilinx forums. As for your AXI enlightenment and wisdom, I would recommend reading all the AXI related...125 replies | 5428 view(s)
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31st March 2020, 11:55Non of the question can be answered without referring to the specific USB device type und functionality. Which device are asking about?1 replies | 198 view(s)
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31st March 2020, 08:42dpaul replied to a thread Conflict between two axi masters. in ASIC Design Methodologies and Tools (Digital)I cannot comment more. You need to check individual axi channel transactions and verify that the channel handshakes are happening properly. Maybe...5 replies | 298 view(s)
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31st March 2020, 08:35dpaul replied to a thread Tool for transforming python code to FPGA for Machine Learning in PLD, SPLD, GAL, CPLD, FPGA DesignDid you look into PYNQ and the libraries therein? http://www.pynq.io/14 replies | 1030 view(s)
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31st March 2020, 08:19FvM replied to a thread Is a snubber circuit required with zero-cross optocoupler in Power ElectronicsI experienced a case where a MOC3040 plus triac combination was periodically self triggered even with pure resistive load by power supply dV/dt. A...4 replies | 271 view(s)
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31st March 2020, 07:18Most transformers on the market, e.g. from WE, have maximum flux specification in the datasheet. Dedicated flyback transformers, e.g. the PoE WE...8 replies | 358 view(s)
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30th March 2020, 13:56dpaul replied to a thread Conflict between two axi masters. in ASIC Design Methodologies and Tools (Digital)Are you expecting that the slave will give data to two masters at the same time? This cannot happen. The slave is connected via only 1 set of AXI...5 replies | 298 view(s)
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30th March 2020, 13:28This is your investigation as you have the environment set with the slave instantiated. changing ARADDR to 1 also does not work, I suspect the...125 replies | 5428 view(s)
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29th March 2020, 23:28FvM replied to a thread Resistance of component bag made of "reddish" ESD plastic? in Elementary Electronic QuestionsThe datasheet has proper specification of surface resistance, apparently you don't understand its meaning. See...17 replies | 625 view(s)
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29th March 2020, 16:57FvM replied to a thread Bandstop Filters With Extended Upper Passbands in RF, Microwave, Antennas and OpticsAs in any well written scientific paper, terms are introduced in the text. θ is electrical length of a line segment, θr electrical length at...3 replies | 207 view(s)
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29th March 2020, 16:51FvM replied to a thread [SOLVED] What is the role of this transistor? in Elementary Electronic QuestionsIt's a current limiting circuit, but the selection of component values seems questionable.5 replies | 289 view(s)
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29th March 2020, 10:58FvM replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsSorry, I was referring to a different schematic, on the post #45 bottom, the only meaningful schematic in this post. The circuits in post #42 and #45...66 replies | 2307 view(s)
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29th March 2020, 10:23What do you specifically mean with "TRX system"? Why not elaborate the question? What do you try to achieve, why do you require isolation between...5 replies | 286 view(s)
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28th March 2020, 22:54FvM replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsAs long as the SCRs aren't defective, the voltage across the capacitors can't exceed 8 to 10 V, because one SCR will trigger at this level.66 replies | 2307 view(s)
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28th March 2020, 16:04The post #1 waveform has apparently similar problems. Repeat the measurement with verified probe.23 replies | 696 view(s)
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28th March 2020, 15:26The pin 6 waveform seems to indicate a defective or wrongly calibrated oscilloscope probe.23 replies | 696 view(s)
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28th March 2020, 10:06May be. You would want to correct the dot marking in schematic. The numbers in post #1 suggest about 0.4 mm air gap, should be O.K. It's...23 replies | 696 view(s)
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28th March 2020, 09:56FvM replied to a thread Considering the power amplifier for complex modulate signal in Digital communicationCrest factor of different QAM signals can be easily found in literature, just ask Google. It's 4.23 dB for 256QAM, means you need at least 2.7 W...3 replies | 1066 view(s)
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27th March 2020, 23:01The transformer circuit according to the dot symbols is forward instead of flyback.23 replies | 696 view(s)
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27th March 2020, 16:32FvM replied to a thread Looking for an non-invasive sensor for a fitness machine in Hobby Circuits and Small Projects ProblemsNo electricity, no motor. A flywheel, probably with an eddy current brake to absorb power. The "non-invasive" point is setting some restrictions,...4 replies | 375 view(s)
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27th March 2020, 14:21So you must investigate the slave IP side. Questions to be asked for investigation: Is there valid data for the slave address you are reading?...125 replies | 5428 view(s)
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27th March 2020, 10:22FvM replied to a thread Help needed; Check of PCB and some other questions in Hobby Circuits and Small Projects ProblemsMost sensitive net is open drain sensor output with 30 k internal pull-up. Should possibly use additional external pull-up. Power traces are...14 replies | 915 view(s)
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27th March 2020, 10:09There's no relevant RC time constant in your circuit. Why don't you simply refer to the start-up waveform in TPS56220 datasheet? Optionally PSpice...2 replies | 261 view(s)
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26th March 2020, 22:44Possibly... But the OP is using vivado 19. which makes default use of xsim compiler. The OP was not specific about the compiler used.13 replies | 711 view(s)
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