KlausST
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Today, 09:42KlausST replied to a thread How to choose optimal wire width of spiral coil to attain high q factor? in Electromagnetic Design and SimulationHi, High Q means low loss. What are the losses in a coil? * core loss --> choose a core that is suitable for frequency and flux * ohmic...1 replies | 79 view(s) -
Today, 09:03Hi, Like with all electronic devices: It's written in the datasheet. In the section: Recommended Operating Conditions Klaus3 replies | 152 view(s)
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Today, 08:59KlausST replied to a thread Divide-by-1 clock divider through D flip-flops in Elementary Electronic QuestionsHi, Divide by one means "no operation at all" Output = input Useless function For such a useless function you may use a * buffer * AND...2 replies | 126 view(s)
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Today, 08:48Hi, There are XTAL frequencies for UART operation, like 3.6864MHz or 7.3728MHz You can't generate them by PLL "multiply with 2 or 4" from a...11 replies | 374 view(s)
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Today, 02:29Hi, Millions of schematics for a simple transistor - relay - control are available in the internet. Every detail of design is explained may...3 replies | 141 view(s)
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Yesterday, 20:28KlausST replied to a thread Freq computation without DIV instruction for 8bit MCU in MicrocontrollersHi, LUT does not neccessarily be in SRAM. But an integer division should be fast. But without ranges...accuracy, resolution... Klaus7 replies | 221 view(s)
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Yesterday, 08:11KlausST replied to a thread Freq computation without DIV instruction for 8bit MCU in MicrocontrollersHi, 40us?? Why that much time? Floating point? --> try integer solutions (what input values range, what expected calculation resolution and...7 replies | 221 view(s)
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Yesterday, 08:05Hi, UART is just a name for the interface, but it does tell nothing about * signals (optical, voltage, frequency modulation, single ended,...11 replies | 369 view(s)
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Yesterday, 07:32KlausST replied to a thread GND For Connector Shielding in Professional Hardware and Electronics DesignHi, ESD? No. This is electrostatic discharge. EMC. Electromagnetic compatibility. A metal case should be considered as a faraday cage. Where...5 replies | 261 view(s)
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23rd January 2020, 22:02Hi, Yes, I aslo vote for UART. The PWM needs to be continuos ... maybe causing annoying crosstalk to audio...and for sure more difficult to...11 replies | 369 view(s)
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23rd January 2020, 21:29Hi, If you use (non UART standard) XTALs, then it's almost independent of microcontroller (as long as they don't include a PLL). Because the...11 replies | 374 view(s)
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23rd January 2020, 08:25Hi, 9A RMS .... is the optimum value and only true for non phase shifted pure sinusoidal signals. For a rectifier - capacitor solution the...15 replies | 631 view(s)
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23rd January 2020, 07:49KlausST replied to a thread [SOLVED] MAX232 alternative with more lines in single package in Digital communicationHi, I'd use the selection guides or tables provided by IC manufacturers or distributors... Klaus3 replies | 215 view(s)
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22nd January 2020, 23:33Hi, Infineon has a lot of ICs and application notes. ...15 replies | 631 view(s)
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21st January 2020, 21:49Hi, I assume every PIC and AVR microcontroller can go higher than 115200 baud. Just review the datasheets. For sure it depends on the...11 replies | 374 view(s)
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21st January 2020, 21:44Hi, Low pass filter, first order, 38Hz Voltage follower to reduce impedance I assume R36, R26 are just there to ensure zero output voltage in...6 replies | 307 view(s)
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20th January 2020, 08:00Hi, Without the resistor the node is called "floating". (No predictable current flow through either diode) The voltage of floating nodes is...6 replies | 319 view(s)
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20th January 2020, 07:44KlausST replied to a thread XC9572XL-10VQG64I part number of CPLD, does it need to program or can use directly. in Service Manuals, Requests, Repair TipsHi, It's clearly a "user programmable device" --> for sure you need to program it. Only the manufacturer of the (defective) device knows the...1 replies | 249 view(s)
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20th January 2020, 07:34Hi, Yes, and there is an almost identical parallel thread ...with modified values. @OP: Show what you have done so far. Your hand made...9 replies | 578 view(s)
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20th January 2020, 07:27Hi, I don't think that a 2200W power supply with just rectifying the input to a capacitor bank is according nowadays rules. I'd use a PF stage...15 replies | 631 view(s)
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20th January 2020, 07:20KlausST replied to a thread Ferrite bead usage in ADC's in PCB Routing Schematic Layout software and SimulationHi, Go to the AD1955 site (not EVAL). Or just type "AD1955" into the search of analog.com and you will find "UG-48 ..." That's it Klaus21 replies | 1599 view(s)
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19th January 2020, 21:43KlausST replied to a thread load sensing circuit/relay in Hobby Circuits and Small Projects ProblemsHi, I assume there are ready to buy solutions. Like "master slave power cords". I use one of such things to switch ON/OFF my periferals if the PC....9 replies | 507 view(s)
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19th January 2020, 20:28Hi, You are correct. My copy and paste fault. It should be: MAXIM USB CHARGER DETECTORS....5 replies | 491 view(s)
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19th January 2020, 18:13KlausST replied to a thread Voltage input to BLDC inverters on tethered drone? in Elementary Electronic QuestionsHi Which RPM? I used a milling motor for 400V, but also 400Hz which makes 24.000 RPM. I'm not sure... I assume this is an asynchronous milling...12 replies | 636 view(s)
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19th January 2020, 13:48KlausST replied to a thread Voltage input to BLDC inverters on tethered drone? in Elementary Electronic QuestionsHi, I agree. You may apply a lot of DC current to a BLDC motor ... while generating zero torque. But if you apply a rotating field to a BLDC...12 replies | 636 view(s)
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19th January 2020, 12:03KlausST replied to a thread three phase volt measurement using resistor network method in MicrocontrollersHi, I guess the problem is in the schematic.Maybe floating inputs (digital or analog), noisy supply voltage, noisy reference voltage, unsuitable...11 replies | 590 view(s)
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19th January 2020, 10:25KlausST replied to a thread three phase volt measurement using resistor network method in MicrocontrollersHi, 327 lines of undocumented code. Thanks for this riddle. You want us to find the error around "AN0" but there is no "AN0" in your code. ...11 replies | 590 view(s)
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19th January 2020, 10:14Hi, Replace C15. Joke aside. How do you think we can help when you don't give a single information about your hardware? By guessing? --> give...9 replies | 412 view(s)
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19th January 2020, 10:07KlausST replied to a thread Ferrite bead usage in ADC's in PCB Routing Schematic Layout software and SimulationHi, You don't want high currents between GNDs on a die. Thus the chip designers use a relatively high ohmic path ... just to avoid high voltage...21 replies | 1599 view(s)
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19th January 2020, 09:36KlausST replied to a thread Frequency Generator XR-2206 PCB Design Missing Components in PCB Routing Schematic Layout software and SimulationHi, Most of them are standard parts, like the pinhead connectors. I'm sure there are libraries for them. But if you don't find, then do what...4 replies | 370 view(s)
About KlausST
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