KlausST
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Yesterday, 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...4 replies | 158 view(s) -
Yesterday, 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 | 226 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 | 270 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 | 204 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 | 511 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...10 replies | 352 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 | 1524 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....5 replies | 314 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 | 405 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...11 replies | 530 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...11 replies | 530 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 | 515 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 | 515 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...6 replies | 310 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 | 1524 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...3 replies | 278 view(s)
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19th January 2020, 02:08Hi, Like every electronics designer you need to read datasheets. Then you know about wiring. Did you read a bout the currents? * An 7805 is...20 replies | 721 view(s)
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18th January 2020, 11:54KlausST replied to a thread Motor pump starter connection with two relay to operate manual and auto in Hobby Circuits and Small Projects ProblemsHi You may use another single pole relay.. Klaus9 replies | 515 view(s)
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18th January 2020, 11:51Hi, It took me 5 minutes to find MAXIM's USB Host Adapter Emulators They may or may not have I2C. Some may have, but you don't need to use it (as...5 replies | 405 view(s)
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18th January 2020, 11:30KlausST replied to a thread Motor pump starter connection with two relay to operate manual and auto in Hobby Circuits and Small Projects ProblemsHi, The benefit of standard symbols is that it avoids confusion. Is it more simple to insert a picture with a red box than inserting a symol of...9 replies | 515 view(s)
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18th January 2020, 11:18Hi, Capacitor for -IN: * X7R are used for high current peaks and/or high frequency..because they have low ESR (at high frequencies) But at this...20 replies | 721 view(s)
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18th January 2020, 10:19KlausST replied to a thread Motor pump starter connection with two relay to operate manual and auto in Hobby Circuits and Small Projects ProblemsHi, Honestly... I don't understand the wiring. * What's the red box and the green box? * Where is the motor? Klaus9 replies | 515 view(s)
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18th January 2020, 10:10KlausST replied to a thread ADC Value gets changed when a Digital output enables in Power ElectronicsHi, Impossible to help without schematic and PCB layout / wiring. My guess: ground bounce. Klaus2 replies | 259 view(s)
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18th January 2020, 10:04Hi, No need for making it complicated. Try this. Klaus20 replies | 721 view(s)
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18th January 2020, 02:41Hi, The most important is: you need a USB DCP which can supply 1.5V. There is the USB specification, various application notes and forum...5 replies | 405 view(s)
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17th January 2020, 08:36Hi, True, the diode solution will be an improvement for noisy supply voltages. The drawback is the known temperature drift of about -4.2mV/°C. ...20 replies | 721 view(s)
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17th January 2020, 08:07Hi, 1) you are right ... and not. * Your second circuit shows one capacitor. Just for the function and as low pass filter. * My circuit shows a...20 replies | 721 view(s)
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16th January 2020, 22:15Hi, The circuit is exactly what I suggested. Did you recognize it? Klaus20 replies | 721 view(s)
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16th January 2020, 11:53Hi, If there is audible noise, then most probably the regulator is not continously (clean) switching. * either it is in hickup mode (high load...14 replies | 966 view(s)
About KlausST
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