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Hi, A forum is not meant that others do your job or post code for you. Btw: an internet search gives a lot of application notes, tutorials, documents that show how to do it. Even the most reliable ones: directly from the chip manufacturer So * copy code or try to write your own according the available informations * test your code * tr
Hello! Is it possible to simulate and plot a Closed Loop Transfer function in Cadence? I need to determine Jitter Peaking value of my PLL. Thank you. -- Eugene
Hi I want to design an Ethernet SPD ( surge protection) with indication. like most of the SPD's I'm going to use a TVS ( for quick response) and a gas tube. what i need to add is an indication when a lighting hit the communication line and activate the SPD. i want a digital pulse ( that i can count the numbers of activation with a controller
and I want 1,000,000.00€. Can anyone send it?
It's rarely the microphone that's responsible for "ring at certain frequencies" and it's quite unusual to use an equalizer in front of the mixing desk. Electrete microphones have a very linear frequency response. More likely a specific microphone mount and acoustic resonators are causing the problems. Less likely a flawed amplifier circuit. It's no
You are asking about off-line SMPS, which are comprised of a rectifier, a filter capacitor and a flyback converter. Unless you are designing a PFC flyback, you can power it with a DC source as well. To test an off-line SMPS with varying input voltage, you can use a variac (variable transformer).
Every 5 million clock cycles, you invert a random LED. There is no code to switch off a LED when another turns on. I think you should post your code in CODE tags instead of attachments.
Hi, It may work, But I'd rather use a single part called " high side power switch, active low". Besides the desired function in a single tiny device, it additionally includes overvoltage protection, overcurrent protection, over temperature protection. and usually cheaper. Just do a search at an electronic parts distributor. The provide in
As per page 32 of the attached?. ?Switch Mode power converter compensation made easy ? by Robert Sheehan ?.if you design an SMPS, and you compensate its feedback loop such that it is stable with an output capacitance of C1, say, then obviously it is stable. Now add another capacitance to the output, call it C2?add C2 downstream of C1. Now
Hi everyone, I have this book and see that someone else posted the same question almost 10 years ago, but I recently got this book used and also need the Matlab files. Does anyone still have these? Thanks a lot! -Numa
Hello everyone, I'm having difficulty with the line input impedance of the circular planar antenna signal. Its impedance is 117 ohms and the correct is 50 ohms, I am not able to lower the value. I made modifications to the input increasing the line width and also made an impedance transformer. When I get it down, the whole process on the antenna I
I draw "conical helix antenna on a dielectric sheet" in AutoCAD. I labelled the layers of the helix as layer 1 and cone as layer 2. and then import the drawing from AutoCAD to Solidworks. The file converted into 3D, and I saved it. Finally, I import the into CST. The helix disappeared, and only the cone appeared. Why (...)
You can easily obtain the per-unit-length resistance for the transmission line by taking the port's propagation constant (gamma) and multiplying it by port impedance (Zo) to get the per-unit-length admittance. The resistively of the line is the real part of this. Alternatively, you can get the decay constant (alpha) as simply the real part of gamma
Hi all circuit designers, I have 2 questions reagarding biasing a LNA, as shown in the capture below: 157930 1/ For what i ve known so far, the R0 resistor is employed as a large enough value to restrict the noise current contribution from current mirror into core LNA devices. However, if I have a stable power supply
Hi all. This common receiver IC is intended to have an application on specific frequencies, so its data sheet does not consider any other uses. Can you smell by reading between lines, if other frequencies could work, like 140MHz with proper tailored tuning components ? Is there any obvious forbidding factors for such frequency shifting ? Or i
though i believe "tan d" will be less at 20khz than at 120hz No, no. You can review typical tan d and ESR characteristic from several manufacturers, e.g. Epcos/TDK. Tan d is roughly proportional to frequency. sually if the capacitor is not specified for 20kHz or higher it is not suitable for this frequency. Won't
Those a 'flyback lines', it's the dots that normally make the picture as they scan back to the top of the screen ready for the next visible raster. They are spaced out because the sweep back to the top is much faster than the normal sweep to the bottom. They are normally supressed so you don't see them by cutting the voltage off to stop the (...)
Hi, How do I get the impedance vs frequency (fig 2.32a) plot of page 33 of the attached in LTspice? The LTspice sim is as attached, but I cannot make it work and cannot get fig2.32a I can get the transfer function plot (fig 2.32b), but not fig2.32a. I am jus
Hi there I am developing a software with nucleo-h743zi board. it has a st-link programmer on board. when I run a led blinker example, I can program and debug my code successfully. but when I add freeRTOS and LwIP , .... to my software, I can program my MCU but I can't debug it. I am using IAR IDE. it shows this message: 157931[/ATT
That's not how you calculate it. Loss factor is specified for 100 Hz. ESR is decreasing between 100 Hz and 10 kHz, but not more than several 10 percent.