FvM
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Yesterday, 22:50Did you sketch the circuit right? As drawn, Cdom is no Miller capacitor. Q5 should be npn.3 replies | 104 view(s) -
Yesterday, 22:42FvM replied to a thread Class AB fully differential amplifier design issue in Analog Integrated Circuit (IC) Design, Layout and FabricationThis looks like a poor FD design. How does it achieve common mode control?2 replies | 131 view(s)
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Yesterday, 16:52Current mirror need monolithic transistor pairs to achieve reasonable matching. The emitter degeneration resistors are a possible means to get a kind...3 replies | 130 view(s)
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Yesterday, 13:32Basically yes. Generated field strength of simple coil configurations (single turn, multi turn spiral) can be calculated based on elementary physical...11 replies | 269 view(s)
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Yesterday, 13:27FvM replied to a thread sampling rate vs rate of change of input for control system in Analog Circuit DesignThe idea behind your examples seems to be that the sampled data should look the same as time continuous data. That's not the way time discrete...9 replies | 212 view(s)
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Yesterday, 11:27FvM replied to a thread A hole for Plastic pin of ethernet connector in PCB Routing Schematic Layout software and SimulationNo. You'll use non-plated hole for mechanical alignment or locking pins, without annual ring etc.2 replies | 109 view(s)
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Yesterday, 11:21FvM replied to a thread Updating footprint in PCB window after being changed in PCB library in PCB Routing Schematic Layout software and SimulationNot sure what your problem is. Altium Designer has e.g. a function "update selected component from PCB library" under component actions. Can be...4 replies | 189 view(s)
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Yesterday, 10:59You are apparently simulating without realistic cable (e.g. 50 ohms transmission line). For medium speed source side impedance matching is a...7 replies | 270 view(s)
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Yesterday, 10:492 G (it's antique cgs unit, better use SI unit 0.2 mT) isn't particular strong, five to ten times earth magnet field. It can be generated with a few...11 replies | 269 view(s)
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11th November 2019, 17:49You are apparently underestimating the output voltage drop with 50 ohm load. Did you include the 50 ohm load in your simulation? Usually a 50 ohm...7 replies | 270 view(s)
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11th November 2019, 17:40Magnetic coil definitely means closed loop. There's no noticeable magnetic field generated by the shown apparatus in the kHz frequency range. The...11 replies | 269 view(s)
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11th November 2019, 14:57Apart from feasibility of battery operation, start with a clear specification. What's the intended operation volume over that you want to achieve...11 replies | 269 view(s)
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11th November 2019, 11:17FvM replied to a thread Help to build my auto disconnecting circuit. in Hobby Circuits and Small Projects ProblemsIt's a Chinese product, check different vendors.10 replies | 342 view(s)
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11th November 2019, 11:10FvM replied to a thread sampling rate vs rate of change of input for control system in Analog Circuit DesignThe calculation makes no sense, there's no reason why the controller shouldn't perform a large step in one sampling interval. Rate of change and...9 replies | 212 view(s)
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11th November 2019, 11:01FvM replied to a thread "RS-232 port to transfer data to PC for analysis" in Software Problems, Hints and ReviewsThe first question has been already answered in general. If it specifically work with the said programmer has to be evaluated, or answered by the...6 replies | 326 view(s)
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11th November 2019, 10:54FvM replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsI would expect a larger time constant of the heater with at least < 1 Hz cut-off frequency.19 replies | 578 view(s)
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11th November 2019, 08:51You should give us some information what you are trying to achieve. If you are copying a board, may be it uses additional configuration data or even...16 replies | 1100 view(s)
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11th November 2019, 08:46You should show a schematic to clarify what you are talking about. Some previous discussions about "deboo" integrator...1 replies | 82 view(s)
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10th November 2019, 22:34FvM replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsI don't have the requirements at hand right now. Does your application require this short burst period?19 replies | 578 view(s)
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10th November 2019, 19:38FvM replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsYour flicker assessment is a kind of shallow. IEC 61000-3-3 isn't applicable for > 16 A load current. You have to refer to IEC 61000-3-11. It's...19 replies | 578 view(s)
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10th November 2019, 17:27These are the intermediate result if you don't clip the values to 16 Bit int You see why the number range can't be handled in 16 bit20 replies | 663 view(s)
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10th November 2019, 16:21You also need to put hands on your add() and sub() functions. Perhaps you start with a simple thing, test your code with smaller X and Y values...20 replies | 663 view(s)
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10th November 2019, 13:33Check the calculation flow in debugger, pencil & paper or Excel. You'll notice that p overflows the 16 Bit int range. Use long for p, pnew, q,...20 replies | 663 view(s)
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10th November 2019, 12:36There's no thing like a "magnetic wave". Electromagnetic waves involve coupled time variant electric and magnetic fields.4 replies | 268 view(s)
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10th November 2019, 11:24FvM replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsMost instant water heaters have 18 to 27 kW power rating, of course 3 phase supplied. Newer models use electronic temperature controllers with full...19 replies | 578 view(s)
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10th November 2019, 11:14FvM replied to a thread What is saturation current of ELC09D-221 (220uH) inductor? in Elementary Electronic QuestionsSlightly more information for this competitor products https://katalog.we-online.de/pbs/datasheet/7447720221.pdf...4 replies | 381 view(s)
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10th November 2019, 10:40FvM replied to a thread How to generate sine wave using Verilog? in ASIC Design Methodologies and Tools (Digital)>>> is arithmetic shift, >>> 3 means multiply with 0.125. For a deeper insight how it works please review the linked old thread.5 replies | 338 view(s)
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10th November 2019, 01:12FvM replied to a thread What is saturation current of ELC09D-221 (220uH) inductor? in Elementary Electronic QuestionsI agree in so far that it might be interesting to know if the rated current of a particular inductor, e.g. the said 220 uH type, is defined by...4 replies | 381 view(s)
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10th November 2019, 00:56FvM replied to a thread Regulating temperature of mains connected heating element: Skipping mains half cycles in Power ElectronicsNot at all illegal. But the switched power has to be limited and the switching pattern should be optimized according to the 61000-3-3 spectrum mask.19 replies | 578 view(s)
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