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Hello, In converting (22 downto -51) data to (7 downto -8) data, 15 bits of decimal part should be removed. By doing this the actual value cannot be approximated to the nearer value. For my application this percentage of error is more. Can you help me to reduce this approximation error. Actually, ther
In Cellular communications this is named DTX (Discontinuous Transmission). This option is used to reduce interference into the cell and reduce power consumption of the transmitters. DTX can be implemented in ANY wireless system.
There has to be a resistor in series to each LED. The value can be 220R up to 2.2K. The resistor determines the current through the LED. without the resistor the LED can be damaged or the 5V supply overloaded and voltage collapses. You can start with 2.2K and if the LED is too dim reduce the resistance.
The inductor should be a value that does not restrict 50 Hz at the current level you desire. A larger Henry value restricts (chokes) current. This may be a handy method to reduce a high output voltage. To help you calculate a ballpark figure you can use the formula for inductive impedance: XL = 2 Pi F L The capacitor is necessary for power facto
Placing ground vias all over the PCB (stiching) to improve the EMI. Have all ground vias to be spaced the same distance? Or may they be separated different distances if it is under lambda/8? I mean, I have to place ground vias all over the PCB edge to reduce EMI. The space between these ground vias are below lambda/20, aroun
Hi, after calculating the trace width for 50 Ohm impedance line, the width is 0.30 mm. 116585 There is no problem at traces but on QFN pins which have a limited spacing, could RF traces have a neck near to SMT pins without affecting too much to RF line impedance? So, RF traces fit in a prope
The area it dictated purely by function. If the 4/4 design requires all 4 inputs or outputs, then removing one will reduce some of the function and therefore area. The tool will not change the function of the circuit, unless the code is designed that way. So I dont really understand your question.
That means doing alteration in code !! Can you be little more specific :| Did you try going by the advice KlauST gave to you? I think your success lies in it. reduce the primary(previously Secondary) windings of your xformer or you get a transformer with 230ACV to 8ACV but i will advice you increase you voltage to
Hello users, I have an ofdm based modulation and would like to reduce its peak to average without generating spectral regrowth. Does clipping work at I&Qs ? People came up with a bunch of PAR reduction techniques for OFDM so I guess this is more complicated than just clipping the base band data. thanks
Using larger ( by maintaning W/L ratio) will reduce the larger MOS area has less mismatch..
In the old days of predicting BER with margin testing for high speed clock and data separators, we used many different tools to measure window margin. But often one of the most useful tools was to inject random jitter into the system to reduce phase margin but still be error free with minimal margin to see if any environmental stress would produce
You can also add a snubber circuit near to each switching device. This will reduce the peak current flowing inside during opening period. Another possibility, but it's kind of hard to evaluate without a notion either of the waveform or the board layout, is that the transistor base is receiving induced noise, which could cause undesired DC drivi
I think the problematic range of frequency is from 33MHz to 65MHz. It will be better if you share the schematics of your circuit to suggest you proper solution. Review this ferrite bead BLM15PX601SN1 - this may help reduce the emissions in the said frequency range.
I am about to design a simple control board for an industrial equipment. To reduce the amount of cabling, the customer asks to have the earth connection on the PCB - along with live and neutral. If I remember correctly, there is a safety restriction which forbids having live+neutral+earth on the PCB. You can have live + neutral, provided you respe
The problem specification isn't very clear. Do you want a low (0.1%) modulation according to the input signal offset? Or reduce the offset to get maximal modulation depth?
The thick film resistor can dissipate 30W when its temperature is at its max of 150 degrees C or less and you cool its case to 25 degrees C somehow (liquid nitrogen?). If you mount it on a heatsink in an air conditioned room then of course the heatsink will get warm or hot so you must reduce the power.
I often find that at some frequency(usually below the working band) S21 is still large(say above 15dB) while both S11 and S22 are poor(sometimes closed to 0dB). This obviously deteriorates the stability factor and makes the amplifier conditionally stable. How can I reduce S21 at those undesired frequencies, or make the amplifier unconditionally
1. Any length is ok, both TX and RX as long as it fulfills your needed system functionality. λ/4 is a practical length due to its impedance is reasonable easy to match against common types of TX & RX impedances. Shorter monopole antenna then λ/4 will reduce antenna efficiency and radiation resistance will be lower, causing reflection loss
Your schematic had wires running around in circles (Multisim?). I fixed it. Why did you reduce the collector resistor value of Q2 to be so low?
Recently i made some calculations on series fed patch arrays using array factor, etc.. But also it is interesting that using different tapered feeding lines it is possible to reduce side lobes. It is all about how much power will go to the patch. Most sources refer to some coefficient = 1/2, 2/3, 3/4,
Hi , how to reduce high logic levels (present in datapath blocks) duirng synthesis using design compiler through better optimization ? I need proper attrbutes / any other way which can be used during synthesis so that logic level can be reduced .
You'll have to reduce the clearance, which can be found under Design => Rules => Electrical => Clearance. You can specify a clearance smaller than the general board clearance using InComponent('U1'). The white parallel lines indicate that the trace is unrouted, and will disappear automatically when you're routing the board.
That current in that circuit will vary about 0.3% per degree C change in temperature due to the Vbe voltage variation of Q2 with temperature. Is that acceptable? P.S. What's the purpose of R1? That will reduce the accuracy (feedback gain) of the circuit.
hi raj, I'm not an expert on it, but I have somethings to share. - trans violations might come from big load as the previous pin drive. - to fix it, I think you need to use a stronger cell (of course you have to trade off timing/power/...) or break number of fanout (to reduce load) I have specified the max_trans value. But still i am get
`Hai every one, Can any one help me to reduce the noise with PCB for RE103 and CE102 tests. I don't have a much time to change my design and going for another new PCB. And i want to know whether it is possible to reduce the noise with out altering the design. Thanking you
I think to achieve GHz frequency you will have to reduce the gm/Id value (i.e. --> moderate inversion mode), which means reducing the transistor W/L ratio or increasing the drain current. S. the following (general) GBW (fT) vs. gm/Id plot: 115844
Hi Everyone, Just wanted to ask experienced antenna engineers, what is the expected sidelobe level, as i've designed a 4-patch antenna array with 10.5dB realised gain, but sidelobe levels of 2.5dB. Do you think this is acceptable at 12-13 GHz frequency? If not, can you suggest some ways to reduce the sidelobe level in array
Hello everyone, I'm having trouble reducing the spur in my subharmoniclly injection-locked ring oscillator. From literature I understood that reference spur can be reduced by ensuring that, F_ro = N*F_inj, where N is the frequency multiplication factor. I set up a ring oscillator in cadence and manually inject a pulse into it. I made my best tu
Feedback can only reduce the output voltage by decreasing the duty cycle. Looks like wrong transformer design or excessive ouput stage voltage drop.
I know voltage isn't amperage, but I have either a 12v or 5v source to choose from. This will be feeding a varying solenoid. The position I'd like it in will require 850 milliamps(say the instructions.) Since this isn't a simple voltage reduction I was wondering if you guys had any input. It would be even better if I could vary the amperage, just i
I just checked with Sonnet EM for a simple through line with 0.1mm, 1mm and 2mm width. The radiated field for 2mm wide line is about 10dB larger than the field for the thin 0.1mm line. So it seems than going for a thinner substrate has both direct and an indirect effect (narrower lines for same Z0) that reduce radiation.
Try to keep the characteristic resonant circuit impedance √L/C Instead of reducing L only, reduce L and C by the same factor.
Probably you have not enough memory to solve your model. You can try to decrease the mesh ratio or use symmetries to reduce your model size.
reduce the width of the antenna for optimization . it may occur due to the boundary conditions, feeding points...etc
I am a beginner in embedded system is there any way to reduce the range of nrf24l01+.I am using 89s52 as my controller.
You can pipeline long combinational paths i.e. add registers at suitable points to reduce the combinational delay. This will improve your slack results...
Not offset per se. But if you operate a dead-balanced front end away from null (like for example, putting a Vdiff=0 input to a Vio=2mV op amp sample) you will reduce the observed AVOL about Vdiff=0 (it will be better at Vdiff=2mV). This is why op amp ATE setups tend to be closed loop with substantial gain elsewhere, so that the input can be force
Yes, you are right.. You can directly connect 3.3V output of Raspberry Pi to TRIGGER input of HC-SR04. It will detect 3.3V as HIGH LEVEL. But the 5V ECHO output of HC-SR04 should not be directly connected to 3.3V rated Raspberry Pi input.. It may damage it.. So you should use additional voltage dividing resistors to reduce 5V to 3.3V compatible wit
Besides a voltage boost function, you also need a means to reduce the voltage which isn't possible in basic boost topology. Considering the low current requirement, a separate linear regulator stage seems more appropriate than a buck/boost topology. Variable boost converters for low current can be found e.g. in flash/processor programming adapto
I don't know what is the clock selection for ADC you can reduce the ADC clock or do with delays between updates. void loop() { Volts_Reading(); Amps_Reading(); delay(1000); //use what ever makes your update smooth.. }
First check you are not overlooking the obvious. 1) Decoupling cap. next to chip across supply. 2) short leads to reduce inductance of wires try to get < few cm max on all leads 3) for ideal fast rise time waveforms avoid using scope probe with tip and gnd clip, instead use pin and barrel instead. 4) choose small cap to reduce drive current < ma
With stripline or microstrip conductor paths around 20 ps/cm you can design delay lines and select one of 40 lines. However stability of the delay is critically dependant on controlled impedance, layout etc. The delay lines would need to be match terminated to reduce reflections. Alternatively you can search for stock [URL="www.digikey.
Arguably, if you have DC, what is the capacitor there for at all. I suspect what you are refering to is a capacitor across DC supply rails, it would be there to reduce the effects of the inductance and resistance of the wiring which would both cause a voltage drop if a sudden load was applied. In that instance, the capacitor would be fitted to wo
You can try this: (1) Open a bitmap file in Paint. (2) Click "Save As". (Alert: avoid overwriting your original file.) (3) Choose tiff or jpeg as the format. (4) Open the new image in Windows Photo Viewer, to make sure it came out all right. JPEG is popular because it compresses large images, so that they occupy fewer kB. Transfer times are reduc
Actually the Op Amps clip the sine wave from linear feedback in 1&2 In 3, the diodes increase the feedback and thus reduce the gain to soften the limiting and prevent clipping which is preferred.
Hi, I have a design with 2 waveports and 1 lumped RLC surface that simulates a capacitor. I have changed the RLC surface into a lumped port to have a 3x3 Z matrix, this way I can change the values of the lumped capacitor in post processing and reduce the 3x3 matrix down to a 2x2 matrix : V1 = Z11*I1 + Z12*I2 + Z13*I3; V2 = Z21*I1 + Z22*I2
hello it seems this sensor deliver a signal trough a capacitor, and need high impedance entry this simple interface wich use only one transistor could be enough .. a zener to limit positive input and a diode connected to +5V DC supply if overvoltage , input imedance decrease a lot , so reduce voltage at very low value.. Another diode shun
what type of fans are they have a pwminput that you can use to reduce their speed so that the battery will last longer....or alternatively , you may be able to use a buck converter to reduce the voltage to the fane so that they draw less current and go slower, again making the batt last longer
Hi, I build Simple ECG circuit it works well. my problem is that when I disconnect cables from body output display 50Hz Noise with full scale peak to peak voltge 0-5volt. when I touch Metal part of circuit like USB output Noise reduce. so how I can solved my problem that when cable are disconnect output goes to 0volt? any help would be greatly app
i am doing project on mimo antenna using complimentary split ring resonator(cssr) 1) it is operating in 2.45GHz 2) to reduce the size of the antenna iam using cssr 3) ADS is the software used for this design