KlausST
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Today, 22:30Hi, It seems you don't understand how a Mosfet works. ON/OFF depends on V_GS. G = gate, S = source. In your schematic this means ALL resistors...2 replies | 0 view(s) -
Today, 22:18KlausST replied to a thread Embedded project needs devices which can work continuously at +125 degree C in MicrocontrollersHi, MUX_E1 is the global CS (or enable) whereas A, B, C are the address lines. With this configuration you don't need to modify the SPI code...80 replies | 2066 view(s)
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Today, 20:15KlausST replied to a thread how to match calculated and measured current of a brush DC motor ? in Power ElectronicsHi, I assume you just donīt take waveform into account. Donīt use "RMS" measurement here, neither for voltage nor for current Donīt use "max"...1 replies | 20 view(s)
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Today, 20:09KlausST replied to a thread Need help to identify this board or find a replacement in Professional Hardware and Electronics DesignHi, Why canīt you identify them? Just read whatīs written on them: I assume: AM26LV32C If so, then they are RS422/RS485 receivers Klaus1 replies | 33 view(s)
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Today, 19:12KlausST replied to a thread Embedded project needs devices which can work continuously at +125 degree C in MicrocontrollersHi, U19, pin41 is the "!SS" signal (look at the PICxx pin description) Again: No, you donīt need pullups at the !CSx signals Your schematic...80 replies | 2066 view(s)
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Today, 18:28KlausST replied to a thread Embedded project needs devices which can work continuously at +125 degree C in MicrocontrollersHi, usually the SS signal of the SPI interface is LOW-active. Thus I recommend to use it this standard way. * at the microcontroller...80 replies | 2066 view(s)
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Today, 18:15Hi, No. Advanced signal routing. As already said: it will be more complicated than with a double sided PCB. PCB: as already said:9 replies | 149 view(s)
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Today, 13:45Hi, My advice: Nowadays, with increasing swtiching frequencies, SMPS, Bluetooth, WiFi... and - especially because you need to be EMI / EMC...9 replies | 149 view(s)
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Today, 12:56Hi, I see * A ground symbol * signals named with "GND" * signals named with "GND_1" --> Please use one solution only to prevent confusing us...9 replies | 149 view(s)
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Today, 10:38KlausST replied to a thread Control Loop Compensation on Synchronous Buck DC-DC? in Analog Circuit DesignHi, I always find CC feedback more difficult than CV feedback. The problem is that the loop gain mainly depends on the load. * There may be...7 replies | 163 view(s)
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Today, 09:46KlausST replied to a thread adhesive to join PCB in PCB Routing Schematic Layout software and SimulationHi, The "best" is usually determined by your requirements. The only requirement I see in your post is "low dielectric constant". Is it...2 replies | 82 view(s)
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Today, 08:03KlausST replied to a thread Can a gated input clock be a problem for a design? in PLD, SPLD, GAL, CPLD, FPGA DesignHi, I wonder... what's the problem with SPI timing? SPI is just a synchronous serial interface. Basically you just need parallel--serial shift...3 replies | 113 view(s)
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Today, 03:05KlausST replied to a thread Cascading amplifier with a line driver for an analog signal transmission in Analog Circuit DesignHi, The first that comes into my mind: * Why do you want to amplify the signal ... before the cable? I assume you want to improve signal to...2 replies | 128 view(s)
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Yesterday, 22:20KlausST replied to a thread [SOLVED] Polar To Rectangular on the calculator, error in Mathematics and PhysicsHi, "-0.15" is the length of a vector. Why don't you use a positive length? You may use the "angle + 180°" to invert the direction. Klaus4 replies | 52 view(s)
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Yesterday, 13:38KlausST replied to a thread [SOLVED] Determining Switch Current in RF, Microwave, Antennas and OpticsHi, square wave.... I assumed something like this. now letīs do some example: letīs say 100Hz, 50% duty cycle (5ms OFF, 5ms ON),rise rate:...8 replies | 118 view(s)
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Yesterday, 12:59KlausST replied to a thread [SOLVED] Determining Switch Current in RF, Microwave, Antennas and OpticsHi, Definitely yes, as already mentioned: Waveform, rise rate, voltage levels, timing Itīs totally different whether you want 100Hz *...8 replies | 118 view(s)
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Yesterday, 12:10KlausST replied to a thread [SOLVED] Determining Switch Current in RF, Microwave, Antennas and OpticsHi, I miss the expected voltage waveform... with voltage levels and timing. Without this we can not estimate the current. Klaus8 replies | 118 view(s)
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Yesterday, 12:08Hi, At this situation, what is: * V_IN, best to be mesured with a scope to see it moves How did you mesure it? A DVM is not useful,...3 replies | 77 view(s)
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Yesterday, 11:11KlausST replied to a thread Can a gated input clock be a problem for a design? in PLD, SPLD, GAL, CPLD, FPGA DesignHi, confusing description. Is this true: ASIC as SPI master --> --> ICE40UP as SPI slave How do you detect the "stuck"?3 replies | 113 view(s)
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Yesterday, 10:44Hi, A battery is far away from being a resistive load. Thus, maybe a "resistive" load is not suitable to test this circuit. You may try to...3 replies | 77 view(s)
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Yesterday, 10:20KlausST replied to a thread [SOLVED] Determining Switch Current in RF, Microwave, Antennas and OpticsHi, I recommend to draw your circuit. Then add arrows that show the current you are talking about. Then draw a diagram with the expected...8 replies | 118 view(s)
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Yesterday, 10:04KlausST replied to a thread Increasing oscillator output to almost rail to rail? in RF, Microwave, Antennas and OpticsHi, Do you mean "microcontroller"? --> They usually have built in oscillator circuit. * some have built in RC oscillators --> they donīt need...11 replies | 190 view(s)
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Yesterday, 09:48KlausST replied to a thread Stepper motor doesn't have a brand or model number! in Elementary Electronic QuestionsHi, I canīt see that you are willing to provide useful informations. * post#7 shows a circuit diagram with a unipolar stepper motor --> free...18 replies | 484 view(s)
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Yesterday, 07:47Hi, ... clearly refers to a file. I recommend to upload this file (or at least a useful part of the file)... Otherwise nobody knows what's...4 replies | 102 view(s)
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Yesterday, 07:42KlausST replied to a thread Stepper motor doesn't have a brand or model number! in Elementary Electronic QuestionsHi, There are many diagrams. Not shure what you mean... --> freewheeling diodes usually don't work on stepper motor windings. If you think...18 replies | 484 view(s)
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20th February 2019, 14:06KlausST replied to a thread How to measure current with a digital oscilloscope? in Power ElectronicsHi, Before you asked about current measurement .. now you talk about performance. Why now "performance" is important? And in which way? If...9 replies | 272 view(s)
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20th February 2019, 13:47KlausST replied to a thread 8051 microcontroller ,lcd and 4 decimal digit increment in MicrocontrollersHi, Iīve merged your threads. Instead of starting a new thread you should try to give the requested informations. Donīt expect that others do...5 replies | 119 view(s)
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20th February 2019, 10:30Hi, Whether the circuit is good or not depends on * the conection of the other motor pins * the internal motor wiring (center taped) * the...3 replies | 123 view(s)
About KlausST
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22nd February 2019
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