KlausST
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Yesterday, 15:59Hi, please read forum rules. A forum is not meant that other write code for you or do an internet search for you. A forum is meant that...1 replies | 48 view(s) -
Yesterday, 15:55Hi, 0.7 --> more exactly 0.707... = 1/sqrt(2) or 0.5 x sqrt(2) (only for pure sinewave). It does not depend on frequency. It just depends...4 replies | 121 view(s)
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Yesterday, 12:08KlausST replied to a thread why does output of 74LCX573 go high during powerup in Elementary Electronic QuestionsHi, Show your schematic. *** The "latched state" at power up is not defined in the datsheet. And most probably you left the signals floating...3 replies | 99 view(s)
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Yesterday, 09:00KlausST replied to a thread Probing with oscilloscope causes current drop in Analog Integrated Circuit (IC) Design, Layout and FabricationHi, We donīt see in the picture where you connect the scope. Also we donīt see what frequencies and what node impedances we have to expect. ...2 replies | 106 view(s)
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Yesterday, 08:55KlausST replied to a thread What will happen if battery cell draws more current than rated in Analog Circuit DesignHi, Iīd say "20min" can be seen as "continous", thus itīs beyond specifications. Detailed answer should give the datasheet .. if you donīt...3 replies | 158 view(s)
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Yesterday, 08:41KlausST replied to a thread Sainsmart 3.2 inch TFT Touchscreen interface with Arduino in MicrocontrollersHi, If Iīd need to know that ... Iīd read the datasheets. Pin compatibilty is easy to verify. Interface and protocol is more complex, but...27 replies | 1931 view(s)
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Yesterday, 06:23Hi, I'd work with interrupts. RTOS takes more processing power overhead. (But your tasks don't seem to take much processing power, thus you are...1 replies | 77 view(s)
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Yesterday, 05:55KlausST replied to a thread [SOLVED] Solder dots on PCB traces in Hobby Circuits and Small Projects ProblemsHi, I'm with Easy peasy: Test points. And I assume this is no multilayer..I rather assume this is a cheap single side PCB. Klaus7 replies | 230 view(s)
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23rd May 2019, 10:21Hi, I wonder who designed the "Recommended Circuit Diagram" of the application note. In my eyes a "constant current circuit" should provide...12 replies | 642 view(s)
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23rd May 2019, 09:03Hi, you missed to add the 40k resistor between R5 and R6.. Klaus13 replies | 725 view(s)
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23rd May 2019, 07:04Hi, Why do you use software UART instead of hardware UART? Klaus16 replies | 287 view(s)
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23rd May 2019, 07:01KlausST replied to a thread H brigde for control speed and direction 180VDC brushed motor in Elementary Electronic QuestionsHi, C6, C9, C11, C12. Ceramics: use standard value 100nF (up to 1uF) Electrolytics: there are many tutirials how to calculate them, even online...14 replies | 1681 view(s)
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22nd May 2019, 23:19Hi, Tx of PIC is an output. But it is connected to RxOut, which is an output, too. And Rx is an input ... and is connected to another input. ...16 replies | 287 view(s)
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22nd May 2019, 22:55KlausST replied to a thread H brigde for control speed and direction 180VDC brushed motor in Elementary Electronic QuestionsHi, To your schematic: * use GND symbols, they improve readability. And they are for free. ;-) * you need a bulk capacitor and a ceramics...14 replies | 1681 view(s)
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22nd May 2019, 08:04Hi, If global VCC is the ADC VRef, then the overall performance is limited. Thus the whole design may be relaxed regarding precision. Klaus7 replies | 158 view(s)
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22nd May 2019, 08:02KlausST replied to a thread Electrolytic capacitor rms and peak current in Elementary Electronic QuestionsHi, If there is an additional current limit, then I'd expect it to be specified in the datasheet. Klaus7 replies | 544 view(s)
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22nd May 2019, 07:13KlausST replied to a thread Electrolytic capacitor rms and peak current in Elementary Electronic QuestionsHi, We talk about "current", thus your statement is wrong. For sure every capacitor can work with AC current. For voltage: Electrolytics...7 replies | 544 view(s)
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22nd May 2019, 06:59KlausST replied to a thread Electrolytic capacitor rms and peak current in Elementary Electronic QuestionsHi, It's the nature of AC, that the peak value is higher than the RMS value. Thus, the answer is: Yes. Klaus7 replies | 544 view(s)
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21st May 2019, 17:07Hi, There is a tutorial.. and you ask how to start. ...Maybe start telling us what you did so far and what results you get. Informations like...13 replies | 725 view(s)
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21st May 2019, 13:11Hi, If you want DC at the output, then you need the already recommended buffer and (I recommend a second order) low pass filter. Because you...16 replies | 1989 view(s)
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21st May 2019, 12:57Hi, Without requirements/ specification regarding precision, frequency response, noise, impedance....and others: Yes. Klaus12 replies | 642 view(s)
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21st May 2019, 12:00Hi, you asked about "1VAC to 1VDC converter" ... But the output of your circuit surely is not DC, It is the rectified input wave. DC is ia...16 replies | 1989 view(s)
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21st May 2019, 09:37KlausST replied to a thread [moved] Calculate the Input/Output Capacitor Value on DCDC converter in Power ElectronicsHi, and of course: frequency.. Klaus6 replies | 182 view(s)
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21st May 2019, 09:36KlausST replied to a thread Driving a buzzer using a transistor in Hobby Circuits and Small Projects ProblemsHi, the suggested buzzer of post#25 draws less than 30mA. With a IC/IB ratio of 10 you need 3mA of base current. Shouldnīt be a problem to...28 replies | 3659 view(s)
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21st May 2019, 08:26Hi, High side current source: Transitor at VCC (high side), load at GND Low side current source (current sink): Transistor at GND (low side),...13 replies | 725 view(s)
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21st May 2019, 08:19KlausST replied to a thread Sainsmart 3.2 inch TFT Touchscreen interface with Arduino in MicrocontrollersHi, Donīt know what this means. Donīt know why you say PWM is not suitable. --> a drawing tells more than a lot of words. Klaus27 replies | 1931 view(s)
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21st May 2019, 07:22KlausST replied to a thread windows programming to create hex for microcontroller in PC Programming and InterfacingHi, Create hex files... but what is the source? Klaus4 replies | 579 view(s)
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21st May 2019, 07:17KlausST replied to a thread Sainsmart 3.2 inch TFT Touchscreen interface with Arduino in MicrocontrollersHi, Simply use one of the 16 bit PWM periferals. They are designed for tasks like that. Please don't ask for code. There are many thousands in...27 replies | 1931 view(s)
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21st May 2019, 06:27KlausST replied to a thread Sainsmart 3.2 inch TFT Touchscreen interface with Arduino in MicrocontrollersHi, I'm using AVRs. In my eyes it makes no sense to generate a "1us" interrupt. (Neither for AVR, and I think nor for any other microcontroller...27 replies | 1931 view(s)
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20th May 2019, 21:01Hi, What a big difference with a suffix can make... Choice: just use a simple, cheap Mosfet. It should work. Klaus6 replies | 1006 view(s)
About KlausST
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