FvM
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Today, 11:47That's what I read into the datasheet. The specification is a bit vague, you may want to ask the manufacturer for an unequivocal spec or check the...3 replies | 183 view(s) -
Today, 11:41FvM replied to a thread NFC System with antenna which can provide from 1 A/m to 7.5 A/m signal strength in RF, Microwave, Antennas and Optics1.5 to 7.5 A/m is the standard field strength according to ISO 14443 which has also been adapted for NFC, active mode. It can be achieved by most...3 replies | 157 view(s)
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Yesterday, 22:36The configuration has to be readback from the configuration device, not the FPGA.1 replies | 203 view(s)
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Yesterday, 22:31There's a minimum read time spec.3 replies | 183 view(s)
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Yesterday, 09:29Muthuraja.M started a thread Usage of Synchronous and Asynchronuos FIFOs in ASIC Design Methodologies and Tools (Digital)Hi Friends, I need to know the exact difference Synchronous FIFOs and Asynchronous FIFOs based on its usage and applications. If the clock...2 replies | 209 view(s)
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19th October 2019, 10:17Series 7 is specified for 950 MBPS DDR LVDS speed, 910 MBPS has little margin. It's suggested to use digital phase alignment to adjust the receiver...5 replies | 253 view(s)
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18th October 2019, 15:34FvM replied to a thread [SOLVED] Rookie making an audio step-up transformer in Analog Circuit DesignAudio transformer needs to care for main inductance which forms a high pass with the load impedance. If you want e.g. < 30 Hz lower cut-off...7 replies | 352 view(s)
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16th October 2019, 08:27FvM replied to a thread Mains leaking currents causing problems in my house in Elementary Electronic QuestionsRemoving Y capacitors can reduce ground leakage, but it doesn't change the fact, that a PC PSU isn't designed with reinforced insulation, thus ground...46 replies | 2397 view(s)
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16th October 2019, 08:11FvM replied to a thread Which transformers can pass approvals testing rergarding isolation voltage testing? in Power ElectronicsWith TIW used for secondary winding, the critical clearance is pin 9/10 to primary windings, including aux. Changing the secondary pins to 7/12...13 replies | 660 view(s)
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15th October 2019, 22:46FvM replied to a thread Which transformers can pass approvals testing rergarding isolation voltage testing? in Power ElectronicsUnless you have additional spacers, the clearance between winding and SMD pin isn't larger than about 5 mm.13 replies | 660 view(s)
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15th October 2019, 16:04FvM replied to a thread Rigid flex Cross section OrCAD PCB Designer in PCB Routing Schematic Layout software and SimulationO.K., the coverlay and adhesive don't continue in the rigid part, but the flex substrate does. In so far your stack up looks better now. The stack...4 replies | 445 view(s)
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14th October 2019, 22:21Did you try to detetmine the loss components yourself? The quoted statement can't be found in the datasheet. "Loss due to parasitic leakage...7 replies | 352 view(s)
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14th October 2019, 08:40FvM replied to a thread Voltage to frequency conversion using VFC32 in Elementary Electronic QuestionsWhy now? What did you change? µF? Really?7 replies | 436 view(s)
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13th October 2019, 21:13FvM replied to a thread Will the TVS diode protect the DC line from AC power? in Elementary Electronic QuestionsPresume you have read the SMBJ5 datasheet, particularly about limiting voltage. Presumed you have a current limiting element that can withstand 230V...3 replies | 293 view(s)
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13th October 2019, 20:35FvM replied to a thread Which transformers can pass approvals testing rergarding isolation voltage testing? in Power ElectronicsIt's necessary to design the transformer with sufficient clearance in this place. By the way, what's the safety specification (overvoltage category,...13 replies | 660 view(s)
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13th October 2019, 18:24FvM replied to a thread Which transformers can pass approvals testing rergarding isolation voltage testing? in Power ElectronicsDid you design the transformer yourself? What's the clearance between primary windings and secondary terminals? If it's actually an isolation failure...13 replies | 660 view(s)
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13th October 2019, 18:07FvM replied to a thread Output of Nand Sequential based Phase-Frequency Detector in Analog Integrated Circuit (IC) Design, Layout and FabricationYou didn't report the transistor technology. I presume you can see how the intermediate level is achieved if you look at all voltage. I guess it's...1 replies | 187 view(s)
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13th October 2019, 17:53FvM replied to a thread question about Friis equation with very large antenna gain in RF, Microwave, Antennas and OpticsFriis equation is valid for far field. Most likely you are still in the near field range if your example achieves positive power gain. Or the assumed...2 replies | 204 view(s)
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13th October 2019, 08:27Post #1 describes the basic CAN operation correctly.7 replies | 457 view(s)
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13th October 2019, 08:15Patience! People are taking part in the forum discussion in their free time and have usually other jobs to do. Thanks for visualizing your...21 replies | 4508 view(s)
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13th October 2019, 06:45A wire between the differential output nodes is usually understood as short. Review the post #1 schematic.9 replies | 630 view(s)
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13th October 2019, 06:31Read about metal cladded PCB.1 replies | 206 view(s)
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12th October 2019, 21:00FvM replied to a thread Protecting the inputs of HV7802 current monitor from damage due to inrush current in Analog Circuit DesignWhy? It's not suggested in the datasheet and doesn't seem to make sense. Ra is the gain setting resistor, and typically much smaller than the...4 replies | 299 view(s)
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12th October 2019, 20:07FvM replied to a thread Rigid flex Cross section OrCAD PCB Designer in PCB Routing Schematic Layout software and SimulationI have designed several combined flex/rigid PCB, but your stack up drawing doesn't yet make sense to me. Usually the layers of the flex part...4 replies | 445 view(s)
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11th October 2019, 10:37What's the resistor tolerance?8 replies | 411 view(s)
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11th October 2019, 09:42FvM replied to a thread Voltage to frequency conversion using VFC32 in Elementary Electronic Questions50 pF doesn't fit your formula. It get > 200 pF. Did you check the integrator and pulse output waveforms? How do you measure frequency?7 replies | 436 view(s)
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11th October 2019, 09:02A few mV is well in the range of expectable MCP6002 offset voltage. When you say the error changes with input voltage, how do you measure it? DC or...8 replies | 411 view(s)
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11th October 2019, 07:43Instead of lengthy explanations, can you simply sketch which form of eddy currents you expect? I presume you agree that there must be eddy...21 replies | 4508 view(s)
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10th October 2019, 22:32If you read the datasheet of the used opto coupler, you realize that the shown recovery delay is in the expectable range. The fast attack time is in...11 replies | 604 view(s)
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