KlausST
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Today, 06:46Hi, The voltage of the capacitor is also limited by the available energy. E = 0.5 × V × V × C --> V = sqrt( 2 E / C) When the energy comes...7 replies | 180 view(s) -
Today, 06:31KlausST replied to a thread PIC16F877 interface with ds1307 ...RTC running 10 sec slow in MicrocontrollersHi, Honestly, I see absolutely no use in simulating the accuracy of an RTC. Simply trust the datasheet. The datsheet specifications should be...5 replies | 284 view(s)
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Yesterday, 23:29Hi, You mean a MOSFET? N-channel or P-channel? Draw a schematic (hand drawn) of your idea. What does "it doesn't work as expected" exactly...2 replies | 152 view(s)
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Yesterday, 20:03KlausST replied to a thread How to convert CMRR in DB to Numerical Value in Professional Hardware and Electronics DesignHi, What about doing an internet search on your own: "online dB calculator"... Klaus3 replies | 159 view(s)
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Yesterday, 19:07KlausST replied to a thread Circuit with an integrated FLIP FLOP in Hobby Circuits and Small Projects ProblemsHi, "my first approach" of post#3 should give all you need to know. If not, then do an internet search with the given informations. Klaus9 replies | 337 view(s)
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Yesterday, 07:07KlausST replied to a thread BMS Circuit design using a BMS IC. in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, All we could do is an internet research...the only useful information we have is "10S" or "20S". So it's a rather unelaborated question. ...1 replies | 146 view(s)
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Yesterday, 06:55Hi, If I had to debug it I'd use a scope to see the signals. With it you exactly see the signals on the bus...you are able to detect software...20 replies | 725 view(s)
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Yesterday, 06:19Hi, There is no best solution. * no free pins at all * internal pullup / pulldiwn * programmable pullup / pulldown * keeper * external...5 replies | 385 view(s)
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30th March 2020, 21:01KlausST replied to a thread computer parallel port external relay control in Hobby Circuits and Small Projects ProblemsHi, The only question of post#1 is Klaus9 replies | 369 view(s)
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30th March 2020, 17:09Hi, my recommendation: Read the datasheets. Both datasheets specify accuracy. At least this is the way I`d do it. Klaus8 replies | 268 view(s)
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30th March 2020, 16:58KlausST replied to a thread Circuit with an integrated FLIP FLOP in Hobby Circuits and Small Projects ProblemsHi, can you please draw a truth table, your 1) violates your 2) --> I assume: when pinA = 1 and pinB = 1: do nothing = hold mode = no change...9 replies | 337 view(s)
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30th March 2020, 13:09Hi, This all makes no sense to me. --> Show a sketch/circuit about your idea. Klaus5 replies | 263 view(s)
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30th March 2020, 11:49Hi, This circuit makes more sense: It differs to the first one: * Now there is no capacitor beween A nd C of the LED. It is between pin2 and...5 replies | 263 view(s)
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30th March 2020, 11:12Hi, this is an inclomplete circuit. I don´t think it is correct. It does not make sens to discuss abut an incomplete circuit. Where is it from?...5 replies | 263 view(s)
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30th March 2020, 00:55KlausST replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsHi, As already mentioned: You don't measure the gate current. --> If you want to know the gate current, then measure the gate current. ...59 replies | 2143 view(s)
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29th March 2020, 18:36KlausST replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsHi, well done :-) 1) typical with SCR and triacs. The gate needs some current to trigger, the diac needs some voltage to trigger, the...59 replies | 2143 view(s)
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29th March 2020, 16:00KlausST replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsHi, Yes, for sure. It does what it should do. It measures the voltage at the given node with respect to GND. If you want to measure the...59 replies | 2143 view(s)
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29th March 2020, 13:55KlausST replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsHi, Didn't we recommend several times to put the load at tha anode side? May I ask where you see the benefit when you repeatedly connect it...59 replies | 2143 view(s)
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28th March 2020, 17:24Hi, You know: No signal goes one way, it always needs a return path. And if the return path is long and high impedance the whole signal will be...20 replies | 634 view(s)
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28th March 2020, 14:03Hi, PCB layout: See the picture. I showed the current flow loop for the gate current. A good layout: should have as low as possible enclosed...20 replies | 634 view(s)
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28th March 2020, 08:47KlausST replied to a thread Tool for transforming python code to FPGA for Machine Learning in PLD, SPLD, GAL, CPLD, FPGA DesignHi, Maybe there is...but it's against the idea software vs hardware, It's an often made mistake to look/write HDL like software. Software is...7 replies | 842 view(s)
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28th March 2020, 07:35KlausST replied to a thread Where to get schematics about SCRs full-wave triggering circuits ? in Power ElectronicsHi, GROUND is just a name. A name for the node which the designer (you) decided to be the voltage reference. Theoretically any node in any...59 replies | 2143 view(s)
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27th March 2020, 23:21Hi, You know you gave just half of the requested informations... You will have your reasons.... Thus I can't verify the some items. Anyway....20 replies | 634 view(s)
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27th March 2020, 22:18Hi, Please show: * the PCB layout * the brand and exact type of R59 (datasheet) * where at the PCB exactly you connected scope_GND and...20 replies | 634 view(s)
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27th March 2020, 13:23KlausST replied to a thread Help needed; Check of PCB and some other questions in Hobby Circuits and Small Projects ProblemsHi, your traces on your PCB will introduce some resistance (mainly depend on width, length and thickness) and impedance (almost independent of...14 replies | 896 view(s)
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27th March 2020, 12:03KlausST replied to a thread Help needed; Check of PCB and some other questions in Hobby Circuits and Small Projects ProblemsHi, I agree FvM. A GND plane shold give some benefit. Maybe add some capacitors for supply voltage stabilisation. And maybe add GROUNDed tracks...14 replies | 896 view(s)
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27th March 2020, 11:42KlausST replied to a thread Looking for an non-invasive sensor for a fitness machine in Hobby Circuits and Small Projects ProblemsHi, There is a motor? There are wires? You can measure the current? All these informations I miss in post#1. Klaus4 replies | 368 view(s)
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27th March 2020, 08:03Hi, I'd consult the datasheet. And if it does not give the expected information I'd start a simulation. You may also build the circuit and use...2 replies | 252 view(s)
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26th March 2020, 09:14Hi, Many users expect this. And from my experience especially those who give vague informations. Glad to see that this isn't the case here. ...20 replies | 725 view(s)
About KlausST
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