KlausST
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Yesterday, 22:01KlausST replied to a thread average value of as square wave in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, What "design procedure" ? ...for two parts: R, C. R C low pass filters are explained million times in the internet, since it's probably the...6 replies | 129 view(s) -
Yesterday, 20:27KlausST replied to a thread average value of as square wave in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, A low pass filter? Klaus6 replies | 129 view(s)
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Yesterday, 17:28Hi, To be honest: I donīt know the answer. * maybe the copper loss is tested with DC. Then there are additional losses caused by AC: Proximity...4 replies | 123 view(s)
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Yesterday, 17:20KlausST replied to a thread USB to RS232 exactly similar to COM1 in Service Manuals, Requests, Repair TipsHi, Read RS232 specifications. There is no need for 11V. If Im not mistaken, then even 3V / -3V levels comply with RS232. If your connected...1 replies | 81 view(s)
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Yesterday, 17:13Hi, I donīt think this is possible. Most probably the power has a a capacitor at the ouput. It needs a lot of power to charge this capacitor...5 replies | 118 view(s)
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Yesterday, 17:05Hi, We donīt know about your circuit. We donīt know what kind of ADC you try to build. We donīt know what cutoff frequency you like to have. ...2 replies | 67 view(s)
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Yesterday, 07:09KlausST replied to a thread Desperate for help (computer fan control) or this could cost huge $$$ in Hobby Circuits and Small Projects ProblemsHi, Did you read the WIKIPEDA article. It says it delivers 2 pulses per revolution. That's all you need. Measure/calculate the count of...7 replies | 302 view(s)
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Yesterday, 07:02Hi, Simple answer: There is no simple answer for your question. The only thing that is very likely: the less voltage you give to the MCU, the...2 replies | 167 view(s)
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Yesterday, 06:30KlausST replied to a thread Desperate for help (computer fan control) or this could cost huge $$$ in Hobby Circuits and Small Projects ProblemsHi, Did you do an internet search? https://en.m.wikipedia.org/wiki/Computer_fan_control Klaus7 replies | 302 view(s)
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Yesterday, 06:27Hi, We can't see it, because we don't have your datasheet. But maybe it is not printed at all. Why do you need it? Klaus7 replies | 200 view(s)
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13th October 2019, 16:53Hi, In ideal case: Yes. But in real world: * The AC adapter will have some power loss = heating. * or in other words: the AC adapter will...7 replies | 200 view(s)
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13th October 2019, 11:14Hi, Please don't ask that global questions. The forum can't replace scool or tutorials. Please tell us what you understand so far. Then ask a...1 replies | 121 view(s)
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12th October 2019, 20:48KlausST replied to a thread Protecting the inputs of HV7802 current monitor from damage due to inrush current in Analog Circuit DesignHi, For sure you are right. Not to cause any confusion with my formula, I corrected it. Thanks Klaus4 replies | 232 view(s)
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12th October 2019, 15:10KlausST replied to a thread Protecting the inputs of HV7802 current monitor from damage due to inrush current in Analog Circuit DesignHi, Datasheet says: (corrected according post#3: uA --> uV) 100uV @ 100,000 Ohms is a current of 1nA. Nominally the bias current is...4 replies | 232 view(s)
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12th October 2019, 14:41KlausST replied to a thread How two nodes are communicating in CAN bus protocol? in MicrocontrollersHi, There are a lot of tutorials, as text and as videos. Many of them explain CAN bus communication very good. ...3 replies | 282 view(s)
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12th October 2019, 07:36Hi, You need to externally solder a pull up resistor. (Enabling pull up with CubeMX is "internal" .... which I think does not work) Klaus26 replies | 1169 view(s)
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12th October 2019, 02:07Hi, Important: if you choose the ADC supply voltage to 3.3V, then you need to change your mathematics, too: --> volt = (float)(Sample * (3.3 /...26 replies | 1169 view(s)
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11th October 2019, 18:05HI, your circuit: I donīt like the idea to drive a LED without current limiting resistor. I assume this makes the LED current unpredictable. In...11 replies | 502 view(s)
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11th October 2019, 17:55Hi, From post to post you change multiple things but donīt show us. This makes it really hard to find out what you try to do. * Now the SCK...26 replies | 1169 view(s)
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11th October 2019, 14:35Hi, I currently see no need for this. The higher the impedance the more problematic. This means? The output? --> makes no sense Both...8 replies | 335 view(s)
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11th October 2019, 13:21Hi, did you do an error calculation? or at least an error expectation? If you do this, you will recognize, that the buffer doesnīt give a...8 replies | 335 view(s)
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11th October 2019, 06:32Hi, Imagine Line and Neutral are shorted ... at both sides of L_CM. Then L_CM formes a series impedance And C_Y1 and C_Y2 are shorted, too,...2 replies | 136 view(s)
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10th October 2019, 21:01KlausST replied to a thread Voltage to frequency conversion using VFC32 in Elementary Electronic QuestionsHi, Datasheet says it has good linearity. Usually darasheets are correct. We don't know your expectations regarding linearity. We don't know...7 replies | 356 view(s)
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10th October 2019, 08:17Hi, There are really many possible reasons. I relatively often use PLDs, external SRAMs and microcontroller in combination. Not the brands...2 replies | 192 view(s)
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10th October 2019, 06:46Hi, Please show your complete input and output circuit of the photocoupler. We need to determine where exactly your scope probes are connected...11 replies | 502 view(s)
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9th October 2019, 23:23Hi, I see it differently: SCK is active all the time. But I assume there is a misunderstanding. When I said: " /CS needs to toggle".. I did...26 replies | 1169 view(s)
About KlausST
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15th October 2019
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