KlausST
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Today, 18:13KlausST replied to a thread MCP4261 need manually power off from time to time or not working well in Professional Hardware and Electronics DesignHi, In my eyes it is very likely that you confuse yourself with this symbol and itīs wrong pin numbering. Please draw a more suitable schematic....4 replies | 58 view(s) -
Today, 17:12KlausST replied to a thread MCP4261 need manually power off from time to time or not working well in Professional Hardware and Electronics DesignHi, My idea: You did something wrong... = not according the datasheet. But we are not able to verify this, because you didnīt give any...4 replies | 58 view(s)
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Today, 17:03KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, Maybe "THD+N / FS" ... --> THD causes error, noise causes error, both degrading ENOB. Donīt guess. Search the internet. The...22 replies | 651 view(s)
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Today, 16:51KlausST replied to a thread 1500mW laser diode question in Hobby Circuits and Small Projects ProblemsHi, To keep us busy? ;-) This makes me assume you did not read the NICHIA datasheet.... I have already done the internet search for you ...13 replies | 198 view(s)
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Today, 16:19Hi, deadtime is neccessary for the halfbridge, not for the motor. .. to avoid excessively high short circuit currents thay may degrade efficiency...1 replies | 36 view(s)
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Today, 16:07KlausST replied to a thread 1500mW laser diode question in Hobby Circuits and Small Projects ProblemsHi, do you really need us to read the specifications from the given ebay page? * Input voltage: 4.5-5V no, --> NEJE **** with an input...13 replies | 198 view(s)
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Today, 14:47KlausST replied to a thread 1500mW laser diode question in Hobby Circuits and Small Projects ProblemsHi, a "rule of thumb" is not safe. There as always a risk remaining. The only really reliable information is written in the datasheet. ... even...13 replies | 198 view(s)
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Today, 13:37Hi, If you use a pushbutton (which is no pus pull) you need a pullup. Maybe the PIC can be configured to enable a pullup, or use an external...16 replies | 699 view(s)
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Today, 13:25KlausST replied to a thread 1500mW laser diode question in Hobby Circuits and Small Projects ProblemsHi, Now you talk about LEDs....before it was a 1500mW laser. This is totally different to a 20mA standard LED. Klaus13 replies | 198 view(s)
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Today, 01:41KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, If 100mV is about -80dB .... Then the FS signal amplitude is about 1000V. ;-) It rather looks like you reduced the amplitude by 25dB...22 replies | 651 view(s)
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Today, 01:22KlausST replied to a thread Problems with Power Supply using LT8609EMSE#PBF in Professional Hardware and Electronics DesignHi, * unsuitable inductance * unsuitable PCB layout * unsuitable capacitors Give us the according informations, so we can verify it. Klaus2 replies | 110 view(s)
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Yesterday, 21:57Hi, There is no question. Please note that the forum is not meant that others do your job. Thus please do your job. Then ask a detailed...1 replies | 147 view(s)
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Yesterday, 18:49KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, how does the noise floor look without test signal? (or test signal amplitude very small, like -80dB) Klaus22 replies | 651 view(s)
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Yesterday, 17:35Hi, This is a good solution if you want the software to count the pulses. But you may use T1CKI to directly make the hardware to count...16 replies | 699 view(s)
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Yesterday, 17:30KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, The FFT result shows that is distortion and not noise that causes bad ENOB. Try to reduce the signal by 3dB or 6dB to see whether this...22 replies | 651 view(s)
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Yesterday, 17:04Hi, --> no one can tell you without reading datasheets. Please try it on your own. btw: TTL and itīs levels:...5 replies | 186 view(s)
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Yesterday, 14:28Hi, most of the BT modules don't need to be configured at all. Klaus5 replies | 186 view(s)
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Yesterday, 12:13Hi, I must assume you did not do an internet search. Please do this first. There will be a lot of hits. Do a pre-selection, then refine your...5 replies | 186 view(s)
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Yesterday, 07:34KlausST replied to a thread VFD to control 3 phase AC induction motor 400V 6000 rpm in Power ElectronicsHi, If you adjust frequency you need to adjust voltage, too. This means at 100Hz you need about doubled voltage. With async motors this is...18 replies | 635 view(s)
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Yesterday, 07:23KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, It's the only way to get the input referred noise. N_or = N_ir x (R_f + R_i) / R_i For both inverting and non-inverting Opamp circuits....22 replies | 651 view(s)
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21st March 2019, 15:30KlausST replied to a thread Overclocking an ATMEGA644P-20PU to 40MHZ, is that possible? in MicrocontrollersHi, simple answer: Read the datasheet. Any operation beyond the specified values are just "trial and error". And even if it works once with...2 replies | 127 view(s)
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21st March 2019, 13:35Hi, Please confirm: "you kow that a hardware counter can be used, but you donīt want to use it". What is the idea behind this? What benefit...5 replies | 240 view(s)
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21st March 2019, 13:07KlausST replied to a thread How to connect DL-CT1005A current transformer? in Elementary Electronic QuestionsHi, Why the diode and the "load resistor". Whatīs the idea behind this circuit? Klaus12 replies | 615 view(s)
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21st March 2019, 12:03Hi, The confusing is: You named the "OPAMP symbol" = "VGA". Thus we assumed this (just the symbol) is the VGA. But the "whole circuit...11 replies | 331 view(s)
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21st March 2019, 10:36Hi, low power: * use a solar cell * maybe a measurement every 5 minutes is sufficient --> set all circuit to "sleep" in the meantime. * I...18 replies | 850 view(s)
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21st March 2019, 10:01Hi, I agree with FvM. Letīs imagine the primary duty cycle is the same as in the picture above. DCM. Energy stored in the inductor: E = 0.5 x...9 replies | 325 view(s)
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21st March 2019, 00:31KlausST replied to a thread Signal to noise ratio of the operational amplifier in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, ... And with full scale amplitude... Klaus22 replies | 651 view(s)
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20th March 2019, 23:57Hi, I wonder why you first talked about a LED, then about airjet. Why not about airjet from the beginning? ... this just brings confusion....16 replies | 699 view(s)
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20th March 2019, 23:34Hi, Can you draw a chart how the secondary current looks like? = I-t diagram... Klaus9 replies | 325 view(s)
About KlausST
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