FvM
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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 | 1990 view(s) -
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...6 replies | 132 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 | 1990 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 | 170 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...5 replies | 272 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 | 170 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 | 142 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 | 170 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 | 314 view(s) -
12th September 2019, 07:31You'll determine the antenna impedance by measurement or simulation, then design the matching circuit.6 replies | 249 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 | 204 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 | 270 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 | 249 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 | 491 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 | 249 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 | 254 view(s)
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10th September 2019, 07:49No, it can't.6 replies | 260 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 | 2053 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 | 352 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 | 326 view(s)
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9th September 2019, 08:29You didn't report the observed problem, just a vague question title.4 replies | 194 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 | 410 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 | 2053 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 | 233 view(s)
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8th September 2019, 22:03Expoxy resin is fine, you need a temporary clamp while curing. Some assembly hints in this old Philips (now Ferroxcube) application note. There...6 replies | 254 view(s)
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8th September 2019, 15:37If the triac is connected as the schematic symbol tells (G next to A1), A2 to ground, the trigger current must be provided by the capacitor, which...5 replies | 410 view(s)
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8th September 2019, 13:21Your Bmax is about factor 10 too large. Please notice that quoted Tahmid's blog is calculating in antique unit Gauss rather than mT.8 replies | 507 view(s)
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8th September 2019, 11:50FvM replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsI don't recognize reverse biased LEDs in the circuit, assuming the diodes are regular silicon diodes with low leakage. Similarly they won't "glow". ...15 replies | 691 view(s)
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