KlausST
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Today, 20:55Hi, Here I am. Yes, I agree with Brian: timing problem. But without useful informations..all is guessing. * no infirmation about * code...3 replies | 111 view(s) -
Today, 20:42Hi, Don't use a switch mode regulator without output capacitor. Depending what type it is it could immediately kill itself. Read the...6 replies | 168 view(s)
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Today, 08:17Hi In a byte there are 8 bits. Usually they are called bit 0 up to bit 7 in descending order (7654 3210) If you use this nomenclature (bit0 ......11 replies | 340 view(s)
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Today, 01:20Hi, It depends what you call "regulate". Without load, there will be output voltage..so it does regulate somehow. But there will be no...6 replies | 168 view(s)
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Yesterday, 08:20Hi, The chosen high side switch has the desired "inverting" function. But it has an internal pull up current source. The voltage may go up to the...5 replies | 149 view(s)
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Yesterday, 07:51Hi, A forum is not meant that others do your job or post code for you. Btw: an internet search gives a lot of application notes, tutorials,...5 replies | 214 view(s)
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Yesterday, 07:33Hi, Actually you did not show a complete circuit to measure motor current. You showed a diagram with a couple if black boxes ... with unknown...6 replies | 344 view(s)
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Yesterday, 00:42Hi, It may work, But I'd rather use a single part called " high side power switch, active low". Besides the desired function in a single tiny...5 replies | 149 view(s)
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24th February 2020, 09:13KlausST replied to a thread Calculating capacitor ripple current in output filter of DCDC module? in Power ElectronicsHi, Although I think that tan d will be higher at 20kHz ... the ESR may be lower... Usually if the capacitor is not specified for 20kHz or...11 replies | 395 view(s)
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24th February 2020, 07:22KlausST replied to a thread Calculating capacitor ripple current in output filter of DCDC module? in Power ElectronicsHi, "tan d of 0.08" is only half of the information you need. You additionally need the tan d test frequency to be able to calculate ESR. You...11 replies | 395 view(s)
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23rd February 2020, 20:10Hi, Yes, there are people that can build their own spectrum analyzer. But I doubt it makes sense for a single piece. It needs a lot of HF...13 replies | 599 view(s)
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23rd February 2020, 18:56KlausST replied to a thread Calculating capacitor ripple current in output filter of DCDC module? in Power ElectronicsHi, I agree. Klaus11 replies | 395 view(s)
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23rd February 2020, 03:30Hi, It's not only formulas, there are design rules, you need to make decisions... There are a lot of online courses, design notes, tutorials...14 replies | 560 view(s)
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22nd February 2020, 11:34Hi, One last comment. This is not true. --> In every post I told the key problem is that you don't keep on specifications and design rules....35 replies | 800 view(s)
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22nd February 2020, 10:40Hi, Ask yourself: * It works (by accident), just because you observed it's final function for some hours... * or it works reliably, because...35 replies | 800 view(s)
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22nd February 2020, 10:21Hi, If this is true, how can some of my applictions's display work? And read carefully: If you use multiplexing techniques (or other...6 replies | 310 view(s)
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22nd February 2020, 10:07KlausST replied to a thread [SOLVED] Online multisim simulation DC analysis in Analog Circuit DesignHi, V_CE of 4.6V makes no sense. Either it is * V_C (measured with respect to GND) instead of V_CE (with respect to emitter voltage) * or...1 replies | 191 view(s)
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22nd February 2020, 09:56Hi, Nobody wold build a house on weak surface with unsuitable material to test it's quality. Then build the real house with completely different...35 replies | 800 view(s)
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22nd February 2020, 09:31Hi, I don't understsnd your code ... I'm not that experienced with C But generally the ISR code should be as short as possible. You do a lot...6 replies | 310 view(s)
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22nd February 2020, 04:06Hi, How can you "make" this smps without having a schematic? Did you even read the IC's datasheet and application notes? PCB without GND...35 replies | 800 view(s)
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22nd February 2020, 03:35KlausST replied to a thread Rise times and fall times of fast transistors seem way too long in Elementary Electronic QuestionsHi, 400MHz is for small signal (non saturated) analog mode....where the gain = 1 60ns is for large signal, saturated, switching mode. Two...3 replies | 368 view(s)
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22nd February 2020, 03:29KlausST replied to a thread Question of the circuit to transmit external signal to a smartphone app in IoT - Internet of ThingsHi, You give more riddles than informations. Define: * proximity sensor * Arduino * modifying the firmware * control signal * what you...6 replies | 692 view(s)
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22nd February 2020, 02:16Hi, In most cases fc = 1 / ( 2 × Pi × R x C) applies. R3, R4 act as a voltage divider, thus for C2 2.55k applies. Choose fc to be very low,...6 replies | 263 view(s)
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21st February 2020, 21:59Hi, Especially for PID controllers, how to design them, how to tune them...there are countless design notes, application notes, discussions, even...5 replies | 306 view(s)
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21st February 2020, 07:29KlausST replied to a thread Please help power supply dead 110V to 24vdc 5vdc in Service Manuals, Requests, Repair TipsHi, Seems to be something basic. Maybe FS1 is a fuse and is blown ... Unpower your circuit and check continuity of FS1. Klaus7 replies | 407 view(s)
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21st February 2020, 02:30Hi, No. It has nothing to do with antenna material. At least it should not... Klaus16 replies | 592 view(s)
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21st February 2020, 01:48Hi, 50 Ohms is the characteristic impedance, you can not measure with an Ohmmeter. The load impedance does not belong to the antenna. It is for...16 replies | 592 view(s)
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21st February 2020, 01:13Hi, I assume there are so much parameters. (PCB material, thickness, copper thickness, layer stacking, layer count, air flow...) ..it's hard to...1 replies | 102 view(s)
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20th February 2020, 07:43KlausST replied to a thread Question of the circuit to transmit external signal to a smartphone app in IoT - Internet of ThingsHi, The linked site tells you everything you need to know. What additional information do you need? Klaus6 replies | 692 view(s)
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20th February 2020, 07:38Hi, Every Opamp manufacturer provides such documents. Start with the datasheet of the selected Opamp. Go to the manufacturer of the Opamp.. to...68 replies | 1858 view(s)
About KlausST
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