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Impedance control gives best control of ringing due to transient CISS during transition. THe ratio of source to switch to load impedance has a penalty of rising CISS with lower RdsOn. I prefer to choose a ratio of 50:1 max from driver to switch impedance. Then asymetry is another choice due to shoot thru, so lower impedance turn off and higher tu
Hi, Does anyone have some info about which is the best input line filter for a high power factor flyback converter operating at transition mode (variable frequency)? Thanks. Hi ysba Your question is absolutely unfair ! What you mean by high power factor ? where is your schematic ? how much power ? what ki
You need to learn how to design a circuit and how not to design a circuit. The best way to do that is design stuff, and find out the hard way that something doesn't work (expensive) or start looking at other designs, preferably ones that are done well (most of the stuff you'll find online are really bad to barely okay designs)
Instead of a quarter wave transformer, a set of pyramidal pieces providing a smooth transition between free space and the dielectric material (like pyramidal absorbers but made of polyethylene or similar material) perhaps could be best suited. It would need more space and material, but it would have wider bandwidth. Z
primetime is just a "signoff" tool or recommended tool, but there are multiple tools which could report the timing. Clock Tree Report indicates, the number of buffer, worst best transition... skew reports indicates for each corner the skew.
The highest efficiency (best conversion gain) of a frequency doubler can be done using a single transistor stage having a tuned circuit at the output (on 2fo). The initial step is to find the performances of the active device at fundamental frequency, looking to parameters as: transconductance gm, transition frequency ft. The transconductance (gm
There is a tip how to improve S11 on a Helical Antenna. Have to increase the thickness of the conductor near the feed-point. The wire of the first quarter of the first turn should be flat in the form of a copper strip (triangle shape the best) and the transition into a helix should be very gradual. This triangle need some tuning for getting the bes
Hey peeps, Trying to do this has consumed so much of my time. Can anyone explain to me how best to feed a slot antenna with a coaxial transmission line, and how to investigate the correctness of the design. Thanks in advance
Hi, the best way to estimate the delay and the skew or uncertainty is to count up (or estimate) the number of flops on a particular clock. Using this count, ask your silicon vendor (or your CTS expert) what is a typical insertion delay and skew for this number of flops in the target technology. The technology and depth of the tree, not necessarily
Hi friends, I am designing an orthomode transducer for which I need to make transition from Circular to rectangular port. I want to do it in step transitions. So if anybody can help me, in providing a document to design such a transition, for maximum matched ports. best regards.
If i have Active RC LPF and active LC LPF. Whose the circuit has best curve (the fast transition curve)?
Hi, do you know, what the best design for circular-to-rectangular waveguide transition? - circular diameter: 18 mm, rectangular: R120 - 19.05x9.525 - 10.7 - 11.7 GHz. I can do transition with S11 < -20 dB, but I need about -30 dB Can you help me ? Thank
there is a warning: Warning: Setting timing_use_zero_slew_for_annotated_arcs to true since more than 95 percent of delay arcs are annotated. Zero transition time will be used at to pins of annotated arcs. Delays on not annotated delay arcs will be estimated us ing best available slew. (PTE-066) so i set timing_use_zero_slew_for_annotated_
Hi, can you help me ? what is the best design transition waveguide to coax ? Have you some theory, picture, book, etc. ? Thank you! Have a nice day ML
Hi, is there, who can help me, with transition waveguide to coax ? Have anybody some theory ? What is the best design ? Is it possible to calculate it ? Thank you very much
my 2 cents, @ what stage of the design phase are you fixing transition violation Synthesis stage or placement stage or routing stage you can give the tranisition constraint during all these stages for the tool to honour the transition requirement of the design. This is the right strategy to be followed. best regards, Chip desig
I need to have a logic to detect ONLY 1 bit high in a bus. For example: a bus signal Y. output OUT High only if Y == 0001 or Y == 0010 or Y == 0100 or Y == 1000. What is the best way to code it in Verilog? In terms of min gate transition?
In planar microstrip circuits , the transition ckt between Cpw and microstrip is very common. which kind of configuration for trn. is best ?
What is the best choice in rail-to-rail input stages, concerning the CMRR in all the range of operation???? Because in the transition region, the CMRR are degraded a lot using complementary differential pairs. What could be a good topology to overcome this problem? Thanks a lot! Filipe
Hi, There will not be smooth transition b/w clocks. Synthesis tool will not do the STA properly because of the gated clock. The best way to do this is implement the logic as Regards, Kanags
Microstrip taper is the best. But SIW filter can be directly excited by 50 ohm microstrip and it is not necessary to use the transition.
Hi all, I am looking for a technique that explains how I can describe the transition Function of a system which has the following property: A transition from present state to next state exists if hamming distance between two states is 1. best Regards, KH
Hi all, I found there are transition and reaction in FSM/HSM. I only know there is state transition in FSM. What's reaction mean? And what's there difference? BTW, I am studing Statecharts (or called Hierarchical State Machine, i.e. HSM). Is it useful in software/hardware design? Any suggestions are welcome! best regards, Davy
MOS mismatches have two factors 1. Threshold voltage mismatch 2. Mobility mismatch If you plot the mismatch of the same area device over different VDSATs you get the best matching near maximum VDSAT=VDD-VTH. At lower VDSAT, or below the subthreshold transition point the current mismatch does not change any more. The device operate similar to
The best tool to do power estimation using vcd is powertheater from sequence designs. The tool not only takes vcd which can be very large, but takes fsdb files for power estimation
the number of modes is related to the propagating modes that will propagate in your structure, if you are operating at such a high frequency then you better increase the number of modes to obtain better solution. since ther emight be higher order modes excited at the transition and HFSS did not include it in the simulation. best Regards, Ade
The best way is detect the fall transition with a fall detector, start to count whit a clock 16x respect your baud rate and when your counter is 8 then sample the state of the line, if you detect zero then you have a real start bit otherwise your fall edge was a spike. if you detect a start bit you can sample the data every 16 times with the clock
in DC,it will use WLM to estimate the RC of the net and the delay calculation by the diffrent type the network : best case balance case or worst this situation will the DC calculate the net transition ?or it just use the output transition of driving cell for the input transition of fanout cell directly? in Pt ,when back (...)
Hi all, I am in the design of a transition adapter between two rectuangular waveguides. One port is the standard rectuangular waveguide. The other port with a much smaller b compared with the first port. They have the same a. I am thinking to use exponential taper to get the lowest S11. Is the exponential taper the best choice? The other prob
Just a thought about your 45 microns slot. Etching will not give a vertical wall, but a somewhat trapezoidal cross-section and when the height is 17 microns it makes a difference. And that does not include the error due to the imprecision with which those 45 microns can be achieved (at the top, bottom or middle ? your choice). The best thing is
Ok junior 1) edges .. edges of signals are important in edge triggered devices .. which now are the standard . it means that an edge trigguered device will change its status at the transition moment . from 0 to 1 for positive edge devices and from 1 to 0 for negative devices .. This arrangement is the best .because the device or flip flop will rem
Actually I didnt get much information about your setting of excitation and lunmped port, I can only base on what I guessed from ur figure. And also you can connect the coax pin out with coaxial line, then can use wave port outside the waveguide, we can catch all information about the mode transition. best Regards,
The INL and DNL are parameters that characterize the deviation on the code transition voltages of the ADCs. On the laboratory this is measured using the histogram method, which is a statistical method. However this requires a large number of samples ? to use this method your simulation would take a LOT of time. So, I guess that the best option i