KlausST
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Today, 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...2 replies | 71 view(s) -
Today, 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 | 75 view(s)
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Yesterday, 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 | 163 view(s)
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Yesterday, 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 | 163 view(s)
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Yesterday, 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 | 230 view(s)
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Yesterday, 07:36Hi, You need to externally solder a pull up resistor. (Enabling pull up with CubeMX is "internal" .... which I think does not work) Klaus25 replies | 1038 view(s)
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Yesterday, 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 /...25 replies | 1038 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 | 425 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...25 replies | 1038 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...7 replies | 204 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...7 replies | 204 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 | 104 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...4 replies | 251 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 | 169 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 | 425 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...25 replies | 1038 view(s)
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9th October 2019, 22:48Hi, Now it's a completely different situation: * only two resistors * no complex impedance You now have a simple resistive voltage divider....5 replies | 342 view(s)
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9th October 2019, 07:48KlausST replied to a thread Simple question on Transresistance Amplifier circuit in Analog Circuit DesignHi, You may simply see the photodiode as current source .... without generating voltage. Now you may say: no current without voltage. Then you...5 replies | 220 view(s)
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9th October 2019, 07:29Hi, Using Brad's formula works for pure ohmic values. But for true impedances (and this is how I understand your question) you need graphic...5 replies | 342 view(s)
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9th October 2019, 06:57Hi, SPI settings have nothing to do with sampling frequency. It depends on how often you toggle /CS .... and read the conversion data. But...25 replies | 1038 view(s)
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8th October 2019, 23:47Hi, It's not clear to me what you want. In either case according the diagram in post#5 your sampling period is much higher than 45us. So if...25 replies | 1038 view(s)
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8th October 2019, 22:10Hi, The TINA plot shows the operation of the "sample and hold" circuit inside the ADC. You don't have access to the purple waveform, nor can you...25 replies | 1038 view(s)
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8th October 2019, 20:46KlausST replied to a thread Detect the absence of sampled AC signal (from digital filter) in verilog in PLD, SPLD, GAL, CPLD, FPGA DesignHi, I can find a question ... and no problem. How can we help? Klaus3 replies | 204 view(s)
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8th October 2019, 20:17Hi, Looks good. Correct voltage levels, clean timing. The SCK frequency seems to be below 1MHz. You could go faster if you like. Why do you...25 replies | 1038 view(s)
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8th October 2019, 12:35KlausST replied to a thread Get phase precisely through longer sampling time in Digital Signal ProcessingHi, ... then why not ask him? From mathematics: You need just 3 samples (each 120° apart) to be able to calculate amplitude and phase...2 replies | 266 view(s)
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8th October 2019, 07:22Hi, I'm confused with your informations... don't know what you refer to. Please be more unambiguous. I don't see any Tina simulation, nor...25 replies | 1038 view(s)
About KlausST
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13th October 2019
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