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31. Jan. 2024 · You need to apply voltage gain so that dV/dt out is over 5 times the 'leading edge' of the STM32. drive signal. A fast NPN transistor, with R//C emitter load, possibly in cascode with a higher voltage. drive transistor, can give you a fast output fall-time, and Baker-clamping the base to collector can get you.
8. Aug. 2008 · This sounds as though you want to examine 5 seconds operation of a circuit running at 1 GHz. It's an example of mixing micro and macro events. It becomes mismatched and unwieldy in simulation. (It is not a problem with real electronics, of course.) Consider trying a longer timestep. Also try a slower switching rate in your simulated circuit.
12. Juni 2004 · hspice speed up simulation Besides fast options, autostop can help you as well. In addition, increase step for transient, AC,DC will help when too small is not necessary. Of course employing multi-cpu and use multi-thread job can make simulation fast dramatically.
18. März 2022 · 300,207. The two last lines are completely wrong, time = distance/speed. Propagation speed is light speed/sqrt (Er,eff). Your assumed 0.15 m/ns (0.5 light speed) is roughly correct for embedded microstrip on FR4, microstrip has typically higher speed (Er,eff < 4), stripline lower speed (Er,eff > 4). You can use Saturn Toolkit, tab Conductor ...
15. Feb. 2004 · If you can post your source and dsn file we'll have a look. Typically this happens when you externally wire a crystal etc. - this introduces an extremely high speed oscillator which bottlenecks the simulation and is completely superfluous anyway. Clock frequency is specified as a property of the microcontroller device.
6. Feb. 2014 · The PIC16F628A is not the most ideal choice for such a task if the primary goal is a 4MHz SPI clock, you would be better off selecting a PIC with a hardware SPI module and a faster internal oscillator or PLL module. The PIC16F887 maybe a better inexpensive choice, with an external 16MHz or higher frequency crystal.
27. Juni 2007 · If you want to meaure switching speed of a SPDT switch, you can use the R&S power sensor NRP-Z81 to capture the switching time. The smallest capture time can be 5ns. R&S have one PC power sensor software , the power sensor can connect with USB. Very easy to use. In the switching time measurement for SPDT, you can use function generator or ...
28. Dez. 2011 · You need a high speed op amp with some current output capability (at least 100 mA). You also need to protect the varactor from inadvertent burn-out if forward biased. So there are two basic circuits: The single ended rail-to-rail op amp can not blow out the diode with a forward bias, so you can hook it up directly. The dual supply op amp needs ...
11. Feb. 2006 · 2,986. Re: speeding ADS. Just go to the task manager and in processes tab pick proper and give to it max priority, also do not tale a lot of points to run. But of course you can do it with other 3D simulators and for sure they will be more faster (like HFSS, CST etc.) David. radha. R.
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