FvM
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Today, 08:44FvM replied to a thread transformer constantly steps down in LTSPICE in Elementary Electronic QuestionsIt matters well. Problem is that you apparently never calculated the 20 Hz reactance of your transformer magnetizing inductance settings, otherwise...4 replies | 84 view(s) -
Yesterday, 22:11FvM replied to a thread H Bridge Grid Tied Inverter is reasonable despite non-sinusoidal current? in Power ElectronicsThis sounds like the essential of your thread, make it analog because you don't manage the digital implementation. I really appreciate good analog...11 replies | 279 view(s)
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Yesterday, 10:22dpaul replied to a thread X propagation on input when else is not there in ASIC Design Methodologies and Tools (Digital)Yes if the input to a flop is X, it will be passed to its output. But you shouldn't be thinking what to do in RTL so as to handle X values.....as in...7 replies | 232 view(s) -
Yesterday, 08:27manishanand14 replied to a thread Surge controller circuit for a power strip in Elementary Electronic QuestionsWell can you suggest a better circuit.4 replies | 136 view(s) -
15th July 2018, 23:03FvM replied to a thread H Bridge Grid Tied Inverter is reasonable despite non-sinusoidal current? in Power ElectronicsYour analog GTI controller implements only part of the required functionality. It misses derivation of the sine reference from mains voltage, output...11 replies | 279 view(s)
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15th July 2018, 22:36FvM replied to a thread [SOLVED] Calculation of step angle in stepper motor in Robotics and Automation Forum"Usually" motor vendor supply clear, unequivocal data sheets, at least that's what I'm used with professional products. Unfortunately no clear...4 replies | 199 view(s)
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15th July 2018, 22:20manishanand14 started a thread Surge controller circuit for a power strip in Elementary Electronic QuestionsHello Friends We all know that there is a surge controller circuit inside a power strip (one used for a computer). I am wondering what kind of...4 replies | 136 view(s)
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15th July 2018, 22:00It's not clear what you want to achieve. No transformer needed to convert 320 VDC to 230 VAC, just a full bridge.8 replies | 220 view(s)
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15th July 2018, 10:48FvM replied to a thread [SOLVED] Calculation of step angle in stepper motor in Robotics and Automation ForumThis is a geared motor, the step angle is only 5.625° /64. Respectively you need 64*(360/5.625) for a full shaft rotation.4 replies | 199 view(s)
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14th July 2018, 16:30FvM replied to a thread How to Measure the Open Loop Gain of an LVDS Driver?! in Analog Circuit DesignNot quite clear what you are trying to achieve. There's negative feedback implemented for the common mode circuit but not for the differential mode...2 replies | 148 view(s)
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14th July 2018, 16:00I agree with CataM. You need two good 470uF capacitors to withstand the ripple current of a 1 kW non-PFC rectifier.10 replies | 294 view(s)
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13th July 2018, 16:19FvM replied to a thread SMD/SMT Capacitor footprint sizes in Hobby Circuits and Small Projects ProblemsUse reflow, density level A or B, mean between min and max. It gives you plenty of margin for hand soldering. Solder paste won't be regularly...3 replies | 161 view(s)
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13th July 2018, 16:08In other words Q ≈ 1000. That's not feasible with intended design techniques. L quality factor is the critical point, C with Q>1000 is at least...15 replies | 256 view(s)
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13th July 2018, 16:02Improved in which regard?10 replies | 383 view(s)
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13th July 2018, 10:48dpaul replied to a thread How higher bits of input and outputs can be accessed to/from FPGA boards? in PLD, SPLD, GAL, CPLD, FPGA DesignUse the Xilinx UART IP core. Or pull off any UART core from Github or OpenCores. Google....there are so many tutorials showing you step by step...7 replies | 431 view(s)
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13th July 2018, 10:06dpaul replied to a thread How higher bits of input and outputs can be accessed to/from FPGA boards? in PLD, SPLD, GAL, CPLD, FPGA DesignPost #2 would be a nice consideration. A UART tx/rx would be the simplest but it would be a bit slow for 256 bits (if latency is not a problem you...7 replies | 431 view(s)
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13th July 2018, 08:52dpaul replied to a thread X propagation on input when else is not there in ASIC Design Methodologies and Tools (Digital)It can happen than an else part is not defined. In such a case, when the 'if' condition is not met, then the signals just stay at their previous...7 replies | 232 view(s)
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12th July 2018, 22:22FvM replied to a thread latency of the dsync output in ASIC Design Methodologies and Tools (Digital)Why don't you sketch a timing diagram?8 replies | 212 view(s)
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12th July 2018, 08:19dpaul replied to a thread How can we make D flip-flop with clear using 2:1 mux only. in ASIC Design Methodologies and Tools (Digital)I suggest you make an habit of Google-ing before asking questions. In most cases, the answers are very easily available with good explanation. ...2 replies | 116 view(s)
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12th July 2018, 08:16dpaul replied to a thread latency of the dsync output in ASIC Design Methodologies and Tools (Digital)We don't know what is "dsync"! Please frame your question properly with a proper background explanation or reference (if needed).8 replies | 212 view(s)
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12th July 2018, 06:57That's fine, but rather unlikely. Many 5V circuits have absolute maximum voltage of 7V, being often destroyed when the level is exceeded. There's...15 replies | 330 view(s)
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12th July 2018, 06:47FvM replied to a thread Does the average digital multimeter measure AC amps in Analog Circuit DesignSo the "resource" says, it can't be that the cheap meters measure AC current although they claim? If the multimeters have AC voltage and DC...4 replies | 126 view(s)
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11th July 2018, 14:40FvM replied to a thread How to define opamp specs within an active-RC filter in Analog Circuit DesignSFDR isn't a linear circuit specification (because they don't generate spurious signals).9 replies | 258 view(s)
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11th July 2018, 14:36"SMA connector" can be plug or jack. To connect two jacks, use a SMA cable or a plug-to-plug adapter https://www.amphenolrf.com/132168.html6 replies | 176 view(s)
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11th July 2018, 14:17The short answer is: You can't protect the 5V system against power supply overvoltage with TVS diodes. A precisely adjusted SCR crow bar can do the...15 replies | 330 view(s)
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10th July 2018, 21:09Unless it's generating intentional harmonics, field oriented control will use sinusoidal waveforms. It can use hall sensors as position reference,...10 replies | 383 view(s)
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10th July 2018, 18:32FvM replied to a thread Simples current mirror input impedance in Analog Integrated Circuit (IC) Design, Layout and FabricationAre you talking about BJT or MOS current mirror? The input impedance of a "simple" (two transistor) BJT current mirror is the diode impedance Vt/id,...7 replies | 233 view(s)
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10th July 2018, 18:26FvM replied to a thread Discrete transistors sot343 cascode amplifier in RF, Microwave, Antennas and OpticsIt should be possible with a diagonal trace, but not so important for the cascode transistor due to the higher emitter driving impedance. A certain...5 replies | 169 view(s)
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10th July 2018, 18:20None-resonant operation frequencies make no sense, they won't achieve relevant power transfer. You need to hit the "series resonance" (talking in LC...4 replies | 225 view(s)
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10th July 2018, 18:03FvM replied to a thread Mosfets kelvin source connection(power mosfet datasheet) in Power ElectronicsMOSFET Kelvin source connection is not for sensing purposes. It's intended as separate gate driver reference node, avoiding degeneration by the...2 replies | 175 view(s)
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