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Dear paulfjujo, I really appreciate your explanation. Some of my friends used Ublox GPS and they told me, in some situations they need more than 2 minutes to track the GPS satellites or need to reset the module, Did you encounter with this issue? Like what paulfjujo said, there are three different start options; ho
Load Pull and Source Pull Analysis is done for those design metrics.. -Max. Efficiency for Power Amplifiers OR -Max. Gain for an Amplifier OR -Max. Delivered Power for Power Amplifiers They cannot generally be obtained simultaneously.You have to decide which is more important for you then you analyze in regard of these three..
Hello! I am a student of the radio engineering faculty and now I am engaged in master's work. The purpose of my work is to find application for Ti3C2 in antenna technology. I found a lot of information from article I can't und
Hello! I am new to CST studio suite and have some questions about it. As a simple example I want to simulate a cylindrical waveguide in terahertz frequency range. First of all I've drawn a cylinder, have set background to pec and have set waveports at faces of the cylinder. I 've set boundaries at faces of the waveguide as open, other boundaries as
Hi guys! First thanks a lot for your replies the other day, it allowed me to progress a little bit in my "after five" experiments. This time, I made a program for a signal generator. I have designed a board for it, but in the meantime I wanted to try, so I wired a R/2R ladder and I'm using a 16 bit output. Here is a picture of what it looks l
I'm not sure from where you come and where you want to go to. The shown topology, despite of some asymmetry by apparently using different switch types, is basically a four-quadrant boost converter, often named active front end. It can source and sink active or reactive power, operate as PFC rectifier as well as grid tied inverter supplying powe
As for the complex pole/zero transfer function, it seems to me that you are acting stupid on purpose, asking things that you know since long. The complex pole pair transfer function describes a second order low pass. Did you never hear or even observe that the low pass filter has a magnitude overshoot depending on the pole pair Q? E.g. if you co
you said you have three broken wires that's 6 ends there are two more ends where the wire in the coil is terminated ends 1 and 8 are the terminations of the wire in the coil 2 and 3 are ends that should be connected, but are broken likewise 4 and 5 and 6 and 7 1-----2 broken 3-----4 broken 5-----6 broken
I want to make the small parts of circuit into blocks, but not work, say three buttons make as one block, the result is missed other two. 154038
You have probably read about some of the progress in power, as renewables get cheaper. The bigger point is that when we are likely to resolve climate change, we will need to get to near-zero emissions. Part of the remedy is to invest in creation from all five businesses so we could do all these things. The day's portion was a conversation we had wi
Hello, I am working on nmenu code and I want to do switching ON the LED by using push button which then select the desired menu on OLED SSD1306 . There are three button, up down and select which is connected to b5, b6, b7 pin and I want output at bo, b1, b2. Please look to the image added below the text. Now how do I switch ON the led when I selec
Hello all, I am designing an isolated high voltage power supply with the aims of reducing the overall system size and weight, increasing power density. This is leading me to find converter topologies which are capable of operating at high frequencies efficiently. I have been studying the series resonant, parallel resonant, LCC and LLC converters
You said Megohm range load, 200V supply, 50 mA current range. Which of the three specs should be corrected? E.g. 10 mA can be achieved with up to 20 k load resistance. The load resistance limitation is basically the same for "low side" or "high side" current source, just a matter of Ohms law.
Easy enough to have made a 230V single phase Tx with an open sec that you can put a single turn thru to get 3kA, then control from the Variac - 3kA DC is a different matter - ideally you want smooth DC - this would need 3 phase SCR control from a three phase Tx with a large smoothing choke in the o/p ...
if the 230V is a little high, you'll get a little more on the 15 V side 15V RMS is 21.2 V peak one diode drop through the bridge, a second diode drop through D1, and a third diode drop on the return through the bridge yields 21.2 V - 3(0.7 V) = 19.1V you need to put a load across C5 to see anything besides the peak voltage diode D1 and
I think you implied this in your question, but just to re-iterate there are three things you need to consider when figuring out the current handling capacity of a trace/track. 1) Obviously, the width of the track, measured in mils or mm. 2) The thickness of the copper, measured in ounces per square foot 3) The length of your trace/track. Also bea
Hello all, I am making an experiment with bldc motor with block commutation using back emf detection method. Here, I want to check the switching sequence of MOSFET?s using differential probe. Can anyone please tell me shortly about the procedure for viewing the all six MOSFET?s switchings using differential probe? I would like to know the quest
Using MOSFETs is quite difficult because the gates have to be lifted close to drain voltage of each device. As the source and drain connections are all at different voltages, you need quite a complex gate drive circuit to provide a different voltage for each device. If you can live with a simple dual-pole change-over relay there is a much simpler
200W Offline LED driver, 240VAC input. Done with Power factor corrected Boost then LLC. Output 250V, 0.8A Efficiency would be 93%....but do you agree, that a 1kW LED Driver is not really practical, because the current would have to be so high and the LEDs would need to be paralleled, which is sub-optimal. As such, 200W is the highest comfortable
There will be a "master" and N "slaves" in the current mirror rack and you want to pay attention to where the reference current flows. For example if you push the current in at the left end of a S-S-M-S-S rack, the M device's drain current makes a successive I*R drop between S1.G and S2.G, S2.G and M.{G,D}, and then there is no further drop to S3