FvM
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Yesterday, 22:46A mass storage device is operated with read and write to logical blocks, the file management is performed by the controlling computer. Interrupting a...6 replies | 422 view(s) -
Yesterday, 22:19FvM replied to a thread Solving issues in my PCB grounding in Professional Hardware and Electronics DesignThe SMPS is a Class I device, designed to be operated with proper proctective earth connection. The problem description suggests that the PE...6 replies | 237 view(s)
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Yesterday, 22:06FvM replied to a thread Generating a digital pulse of 10 secs and 1 sec in PLD, SPLD, GAL, CPLD, FPGA DesignHow about building a digital timer? Can be made in programmable logic, but also using a microcontroller or by assembling discrete logic ICs. All...2 replies | 91 view(s)
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2nd April 2020, 23:20FvM replied to a thread Def-Stan 59-411 proble with MOVs don't dissipate energy in RF, Microwave, Antennas and OpticsI wonder if the used MOV are actually rated for the applied DCS12 test signals, which are considerably different from industry standard surge test...1 replies | 160 view(s)
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2nd April 2020, 23:02No idea where you got the integral expression. I guess " ∫ t 0" is a garbled form of "integral from 0 to t", which would be the correct description...3 replies | 368 view(s)
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2nd April 2020, 22:01FvM replied to a thread water flow detection in a pipe in Hobby Circuits and Small Projects ProblemsConsider flow and pressure as independent parameters. Pressure is important for "invasive" sensors. 0,015 m/s seems correct and is quite low. An...6 replies | 323 view(s)
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2nd April 2020, 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 | 526 view(s) -
2nd April 2020, 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 | 804 view(s)
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1st April 2020, 21:50Or referring to ∫Vdt (ET in your terminologie) I = ∫Vdt/L10 replies | 485 view(s)
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1st April 2020, 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 | 241 view(s)
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1st April 2020, 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?6 replies | 237 view(s)
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1st April 2020, 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 | 5495 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?6 replies | 422 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 | 323 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/16 replies | 1251 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 | 289 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...10 replies | 485 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 | 323 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 | 5495 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 | 677 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 | 230 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 | 303 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...80 replies | 2624 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 | 298 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.80 replies | 2624 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 | 804 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 | 804 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 | 804 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 | 1125 view(s)
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