FvM
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Today, 15:10FvM replied to a thread Is there possibility to force a filter topology in DA_LClowpassMatch in ADS? in RF, Microwave, Antennas and Opticsfrdm90 didn't yet release a matching bandwidth specification. I presume, it's not possible to achieve a higher bandwidth with LC network for the...24 replies | 631 view(s) -
Today, 13:53Besides unsuitable probe connection it may be dropping DC supply. I won't care about it much. Overshoot is much more a problem. It probably kills the...13 replies | 303 view(s)
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Today, 12:53How can you measure with different ground connection for blue and yellow trace simultaneously? The real circuit must be somehow different. - - -...13 replies | 303 view(s)
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Today, 11:56No. I referred to the isolation capacitance, e.g. the transformer interwinding capacitance. The linear voltage regulator circuit is O.K. But it's not...13 replies | 303 view(s)
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Today, 09:55O.K., you can tune a diff mode filter to reject a particular frequency, at cost of wideband suppression. If it helped in a special case, it's surely...14 replies | 2023 view(s)
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Today, 09:48There's no DC bus in a "direct converter", which constitutes already some of the circuit problems. It's not clear where you measure the "IGBT...13 replies | 303 view(s)
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Yesterday, 16:23Part of your points have been already discussed in the previous thread. Surely not. A choke has maximal impedance at it's SRF, respectively...14 replies | 2023 view(s)
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Yesterday, 11:46FvM replied to a thread Problem adding reset to master slave D-FF for phase detector in ASIC Design Methodologies and Tools (Digital)I don't understand what you consider "wrong" in the posted simulation waveforms. I don't recognize missing pulses or similar artefacts. Please...3 replies | 190 view(s)
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Yesterday, 09:49Sure, but the problem is at least of theoretical interest. Kajunbee's empirical observation that braking the precession slows down the gyro rotation...6 replies | 314 view(s)
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13th September 2019, 16:04FvM replied to a thread Problem adding reset to master slave D-FF for phase detector in ASIC Design Methodologies and Tools (Digital)What did you observe?3 replies | 190 view(s)
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12th September 2019, 21:17Why do you think the number of transition could be limited in off-chip mode?1 replies | 145 view(s)
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12th September 2019, 21:00Ferromagnetic materials are bad conductors for high frequent AC. Not due to "hysteresis" but due to effect of permeability on skin depth. See e.g....3 replies | 172 view(s)
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12th September 2019, 13:47dpaul replied to a thread Facing some error in Verilog HDL coding of Standard deviation calculation? in PLD, SPLD, GAL, CPLD, FPGA DesignAll Verilog constructs should work within a file marked .sv. But the opposite is not true.9 replies | 323 view(s) -
12th September 2019, 07:31You'll determine the antenna impedance by measurement or simulation, then design the matching circuit.6 replies | 263 view(s)
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11th September 2019, 12:00dpaul replied to a thread Implementation of a MUX for selecting from 2 different sets of inputs in PLD, SPLD, GAL, CPLD, FPGA DesignSounds like a stages of MUXes...... As others have pointed out, a diagram is needed.5 replies | 208 view(s)
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10th September 2019, 22:42FvM replied to a thread Why does I2C Expander reply with NAK when master sends a byte? in MicrocontrollersSlave can block I2C bus by pulling SDA low (or SCL, if it has an an SCL driver). Did you check?3 replies | 273 view(s)
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10th September 2019, 22:26Nothing special, a short (< λ/4) folded monopole, tuned with series inductor L2. Small bandwidth, high Q, not very efficient. Can be used at...6 replies | 263 view(s)
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10th September 2019, 08:27FvM replied to a thread Flyback SMPS power MOSFET getting hot? uc3843 pwm converter in Power ElectronicsThis explains a lot. Operating a flyback transformer with no air gap is a safe way to saturate the core. Without an oscilloscope, you can't debug...17 replies | 523 view(s)
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10th September 2019, 08:15FvM replied to a thread Which component can be a 2W LTE amplifier at 900Mhz？ in RF, Microwave, Antennas and OpticsYou can upload any kind of simulation files after zipping it.4 replies | 259 view(s)
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10th September 2019, 08:07Although the app note suggests not to apply epoxy resin to the core gap, I usually do to achieve highest strength. As far as I'm aware of, most...6 replies | 264 view(s)
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10th September 2019, 07:49No, it can't.6 replies | 268 view(s)
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10th September 2019, 07:47I still didn't hear a specification for the intended overall accuracy. Unless you are using an expensive high performance pressure sensor (multi...21 replies | 2055 view(s)
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9th September 2019, 16:53FvM replied to a thread 3 phase 4 wire(480V) AC to 12VDC (100mA) power supply for energy metering application in Power ElectronicsMeanwell IRM-20-12 is specified to work up to 305 VAC / 430 VDC, so it can be supplied by suggested 3-phase half-wave rectifier. Disadvantage is that...9 replies | 369 view(s)
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9th September 2019, 12:14Insufficient gate drive voltage for high side transistors. You are applying 5V relative to ground but 5V relative to respective source terminal is...8 replies | 366 view(s)
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9th September 2019, 08:29You didn't report the observed problem, just a vague question title.4 replies | 202 view(s)
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9th September 2019, 08:10I still suspect, that the present triac connection isn't intended, usual scheme would connect A1 to ground.5 replies | 412 view(s)
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9th September 2019, 08:07What's your actual circuit? Have you increased the supply voltage to achieve reliable operation over the expectable sensor resistance range (see post...21 replies | 2055 view(s)
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8th September 2019, 22:47Phototransistor has large output capacitance in nF range created by Miller effect, the observed behaviour is quite expectable. You can try to switch...4 replies | 241 view(s)
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