KlausST
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Today, 01:32Hi. I agree, most probably VCC, the missing contrast circuit and thus the contrast may be the problem. But also write timing may cause unclear...2 replies | 63 view(s) -
Today, 01:13KlausST replied to a thread Buck/Boost Battery Charger works on dummy load, but does not charge batteries in Power ElectronicsHi, May we see your PCB layout? Klaus4 replies | 31 view(s)
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Yesterday, 19:29Hi, No values, how can you expect a good advice? --> delay it by a sufficient count of ADC samples. Honestly. We donīt know nothing. We...3 replies | 97 view(s)
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Yesterday, 17:13Hi, sinusoidal signals are analog signals, but your MCU is a digital device. Thus I assume there is an ADConverter involved. --> for a...3 replies | 97 view(s)
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Yesterday, 16:53KlausST replied to a thread [moved] How to design a crystall oscilator circuit using CMOS 40106 DESIGN in Hobby Circuits and Small Projects ProblemsHi, All information is already given: --> read the XTAL datasheet (most reliable information) --> use the recommended values (general...7 replies | 151 view(s)
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Yesterday, 16:23Hi, obviously 60Hz mains frequency. Loop via Earth_GND? Your pictures and description donīt give much information. Itīs just a snippet of...1 replies | 71 view(s)
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Yesterday, 15:51Hi, you say you want details, but donīt say what details. Maybe: * mounting and soldering * power supply and power dissipation *...3 replies | 104 view(s)
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Yesterday, 15:40Hi, I didnīt go through the datasheets, thus I donīt know about the sensor errors... So itīs just a reminder to consider worst case scenarios...10 replies | 194 view(s)
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Yesterday, 14:41KlausST replied to a thread [moved] How to design a crystall oscilator circuit using CMOS 40106 DESIGN in Hobby Circuits and Small Projects ProblemsHi, The frequency is determined by the XTAL. If you use a 1MHz one, than you wonīt be able to 0.99MHz or 1.01MHz. I agree with betwixt: 1M,...7 replies | 151 view(s)
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Yesterday, 09:19Hi, This leads to the following formula: Vce(sat) * duty% * I(average) (I donīt agree with this) For a constant voltage drop (where...12 replies | 402 view(s)
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Yesterday, 08:45Hi, P = V x I this means at any time the power P(t) = V(t) x I(t)... this is true in any case. For ideal resistors: P(tot) = R x I(RMS)^2 ...12 replies | 402 view(s)
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Yesterday, 06:48Hi, If you take the units correctly with your calculations: 5uV/V/mmHg * 5V = 25uV/mmHg 25uV/mmHg * 350mmHg = 8750 uV = 8.75mV10 replies | 194 view(s)
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22nd April 2019, 21:50Hi, I would be surprised if there were no ready to download ones from EAGLE. Klaus1 replies | 142 view(s)
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22nd April 2019, 20:39Hi, Why not using a lower value resistor? For current measurement it should work. Usally current sense resistors need kelvin wiring. I don't...4 replies | 279 view(s)
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22nd April 2019, 20:13Hi, All this text is useless as long as you don't show code and schematic... Klaus3 replies | 205 view(s)
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22nd April 2019, 09:23Hi, I don't think it's a compiler problem when the microcontroller takes 300 mA. I rather think there is a hardware problem. Klaus If you...3 replies | 205 view(s)
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22nd April 2019, 06:54KlausST replied to a thread Output Resistance of Amplifier with Feedback ( Series - shunt) Loading in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, I didn't take R1 and R2 into account because of the "open loop" statement. But for sure to get "open loop" you may use the R1and R2, but...4 replies | 178 view(s)
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21st April 2019, 19:59KlausST replied to a thread Output Resistance of Amplifier with Feedback ( Series - shunt) Loading in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, R= V / I. If you try to move the voltage of the common node between both resistors (which is the output node).... You need to fight...4 replies | 178 view(s)
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21st April 2019, 18:25Hi, I agree with Akanimo. Breadboard is useless. Just read the design considerations in the datasheet. Klaus13 replies | 744 view(s)
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21st April 2019, 15:21Hi, I assume there is a PCB layout problem...as so often. Klaus13 replies | 744 view(s)
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20th April 2019, 15:30KlausST replied to a thread Sample code to count the external input signal using counter. in MicrocontrollersHi, We don't know the frequency, nor the desired bit width of the counter... Nor do we know whether you want the hardware to count pulses, or per...7 replies | 413 view(s)
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20th April 2019, 15:17Hi, Reset, brown out? Wiring? Supply? I don't think it needs anything else.. Klaus16 replies | 645 view(s)
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20th April 2019, 12:03Hi, I assume it's caused by your wiring. --> show us a couple of detailed fotos of the wiring. Power supply, serial connection, modem... Klaus13 replies | 775 view(s)
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20th April 2019, 07:00Hi, Maybe these transitors are used at gate drivers for class AB Mosfet audio amplifiers... If so, then neither hfe mismatch nor Vbe mismatch...2 replies | 206 view(s)
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19th April 2019, 21:27KlausST replied to a thread Help to make circuit for Nerve Stimulation Device in Hobby Circuits and Small Projects ProblemsHi, To me it seems you misunderstood how a forum works. It is not meant that others do your job, like doing internet search, looking for...24 replies | 6047 view(s)
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19th April 2019, 21:06Hi, I can't help with "C" But from the measurement view: In my eyes this makes no sense. 316589 is an 19 bit value. For the complete...6 replies | 682 view(s)
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19th April 2019, 20:58Hi, What about setting up a timer interrupt every 5ms. In the according ISR: * read in ports * activate new row * decode the input With...2 replies | 134 view(s)
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19th April 2019, 17:35KlausST replied to a thread How to convert accelerometer data into G with the ADXL345 digital accelerometer in MicrocontrollersHi, Do some"calibration tests": Put the sensor on the table and fix it with a tape. (Maybe mark it's position and direction on the table with a...8 replies | 761 view(s)
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19th April 2019, 11:26Hi, Yes, use no Xtal, but an oscillator. Frequency: if I remember right, then it should with 1MHz and higher. It will work with lower...16 replies | 645 view(s)
About KlausST
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Please donīt contact me via PM, because there is no time to respond to them. No friend requests. Thank you.
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