151 Threads found on edaboard.com: Nevertheless
Obviously ICL7135 has multiplexed BCD outputs. It's designed to drive numeric displays.
nevertheless it's possible to connect to a microcontroller by reading the BCD data and segment lines. #STROBE can be used to synchronize the data processing, RUN/HOLD to optionally start and stop the conversion.
Display oriented ADCs have been used with p
Elementary Electronic Questions :: 02-24-2017 11:15 :: FvM :: Replies: 2 :: Views: 294
The schematic in post #1 seems wrong, the transistor is shorting the battery. Presumed this is only a drawing fault, it should be corrected nevertheless. How much is the load current, what's the battery size? If the load is just too big for the battery, there's no software trick to overcome the problem.
Microcontrollers :: 09-04-2016 14:57 :: FvM :: Replies: 7 :: Views: 322
Of course, for FDD(Frequency division duplex) direct-onversion receivers,
The IM2(2 order intermodulation) contaminates the desired Rx signal due to Tx leakage, as shown below :
nevertheless, that is because the IM2 is near the down-converted baseband Rx signal in frequency domain.
RF, Microwave, Antennas and Optics :: 07-19-2016 07:34 :: criterion456 :: Replies: 2 :: Views: 419
As said, technical compressed air systems are using compressor on-off control together with pressure tanks and mechanical pressure regulators.
nevertheless analog pressure control using a variable speed compressor is an option for special purposes. What's your application?
Microcontrollers :: 07-16-2016 08:30 :: FvM :: Replies: 14 :: Views: 477
Seems to me that it's possible to position I/O at any level between the supply rails, even with a high supply voltage. nevertheless you must consider power dissipation of components which drop greater watts, the higher the voltage.
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 05-26-2016 03:13 :: BradtheRad :: Replies: 1 :: Views: 358
I agree that the question is a bit confused, but the observed effect seems rather clear nevertheless. You see transformer interwinding capacitance which doesn't appear in your specified parameters
Power Electronics :: 04-29-2016 17:27 :: FvM :: Replies: 72 :: Views: 2363
Presume you are talking about EPM3512A.
I understand that the JTAG chain is basically working, otherwise you would get different errors. I didn't work with MAX3 family since 10 years or so, but I guess, "can't verify" will happen if you set the security bit in the design. It should be functional nevertheless.
Another possible trap door of MAX
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-24-2016 08:44 :: FvM :: Replies: 4 :: Views: 350
It doesn't look like the preferred SCART socket type to connect wires. I'm not even sure if it's a generally available standard product. But I presume the pins of your socket are solderable nevertheless.
Hobby Circuits and Small Projects Problems :: 04-01-2016 17:56 :: FvM :: Replies: 5 :: Views: 459
A "rubber duck" or "spring" (helical wire) hasn't much to with a helix antenna with dimensions in the order of wavelength. In so far you can safely forget about using the online calculator.
It should be nevertheless possible to evaluate the antenna parameters with an EM solver, e.g. HFSS. Can you show a Smith chart and magnitude curve of S11 obt
RF, Microwave, Antennas and Optics :: 02-25-2016 10:25 :: FvM :: Replies: 2 :: Views: 544
Motor capacitors have often +/- 20% tolerance. 13.5 ?F won't be far from specified value in this case. Starting torque will lower with the low capacitor nevertheless and can cause problems, depending on the (unsaid) motor application.
Motor windings burn for different reasons. Mechanical overload/stall is probably most common, a manufacturing de
Power Electronics :: 11-15-2015 10:17 :: FvM :: Replies: 3 :: Views: 366
Default baud rate will be 9600..
Default setting is AT+IPR=0 (autobaud). Default baudrate is nevertheless 115200, read the SIM900 AT manual.
It's also said that module is sending a few bytes at 115200 during startup.
Professional Hardware and Electronics Design :: 09-17-2015 13:30 :: FvM :: Replies: 4 :: Views: 733
dxf files, other than pdf or bitmap graphics come with exact dimensions, because it's a mechanical CAD data format. If you see wrong size, it's either a problem of your viewer or wrong dimensions setup in HFSS. nevertheless dxf files can be scaled to intended exact size in a CAD tool.
A number of full featured gerber tools can import dxf and con
Electromagnetic Design and Simulation :: 09-04-2015 06:58 :: FvM :: Replies: 4 :: Views: 731
In that case, the module takes care of all the high frequency issues
Yes. The RF application suggests this design features nevertheless:
- have a continuous ground plane if feasible (4.layer PCB)
- calculate correct micro strip geometry for antenna connections
- use bypass capacitors according to module specifications
PCB Routing Schematic Layout software and Simulation :: 06-07-2015 08:53 :: FvM :: Replies: 6 :: Views: 732
For minimal component count, you'll use a microcontroller that can mimic a touch controller with it's analog inputs. E.g. microchip has application notes about this operation. A separate touch controller like NXP PCF8885 may nevertheless achieve lower power consumption.
You'll preferably use a hardware timer to generate clean output frequencies.
Microcontrollers :: 06-04-2015 06:15 :: FvM :: Replies: 4 :: Views: 417
Can anyone teach me how to construct the PWM controller in the first post without any MCUs?
Here is a simulation illustrating the concept of a flyback, with basic control technique.
It does not self-regulate. nevertheless it's a start on the path to a design like your
Power Electronics :: 03-10-2015 20:12 :: BradtheRad :: Replies: 4 :: Views: 585
OpenCV offers support for the image formats Windows bitmap (bmp), portable image formats (pbm, pgm, ppm) and Sun raster (sr, ras). With help of plugins (you need to specify to use them if you build yourself the library, nevertheless in the packages we ship present by default) you may also load image formats like JPEG (jpeg, jpg, jpe), JPEG 2000 (jp
Software Problems, Hints and Reviews :: 02-03-2015 06:56 :: ud23 :: Replies: 1 :: Views: 613
I agree that liberty shouldn't be derated.
nevertheless it's also the name of a Synopsys created library format.
Analog Circuit Design :: 01-09-2015 18:45 :: FvM :: Replies: 9 :: Views: 1420
Reviewing this thread, I neither see a clear description (preferably a schematic) how the signals in post #1 have been generated nor a clear question.
nevertheless I agree with the general design guidelines by TrickyDicky.
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-28-2014 09:51 :: FvM :: Replies: 11 :: Views: 893
is there any way to do the instantiation inside always block
I presume you already know the answer is no.
It's nevertheless easy to connect the in-and outputs of the instantiated module with sequential code inside an always block by wires and regs.
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-19-2014 09:20 :: FvM :: Replies: 4 :: Views: 494
Maximum read speed is restricted by the EPC Gen 2 protocol which you may want to study. From my limited knowledge of EPC, 1 ms seems unrealistic at first sight, at least several ms are needed I believe.
nevertheless I see several readers that have a programmable read rate respectively a read trigger input.
RF, Microwave, Antennas and Optics :: 11-20-2014 11:59 :: FvM :: Replies: 6 :: Views: 858
"Dumping code" means loading a FPGA configuration? It's actually about to impossible that the same configuration works with different FPGA types.
nevertheless you should tell the exact devkit names.
PLD, SPLD, GAL, CPLD, FPGA Design :: 09-19-2014 06:17 :: FvM :: Replies: 15 :: Views: 911
This is Output Impedance of the amplifier and it should be matched to 50 Ohm to get the Delivered Maximum Power.nevertheless it doesn't impact the modulation scheme but delivered power is droped if matching is not done.
RF, Microwave, Antennas and Optics :: 08-30-2014 15:01 :: BigBoss :: Replies: 10 :: Views: 623
There are detailed explanations in the datasheet, particularly in paragraph 7.6 "Using the External Oscillator".
FT232R will be typically used in the bus-powered configuration (Vcc = 5V VBUS) with the default internal oscillator. The IO voltage can be nevertheless 3.3V.
Digital communication :: 07-29-2014 22:29 :: FvM :: Replies: 2 :: Views: 583
I know from some German forums that this device is not very good. I use for example a Bauer BGA, but nevertheless, it took quite a lot of time and chips to find the right setup. I think, it's a trade-off between money <-> time.
Hobby Circuits and Small Projects Problems :: 05-19-2014 19:00 :: johnjoe :: Replies: 2 :: Views: 780
Yes. A LC filter is the cheaper and better performant solution nevertheless.
RF, Microwave, Antennas and Optics :: 05-09-2014 17:14 :: FvM :: Replies: 5 :: Views: 684
Maybe it's a case of those who can, do. Those who can't, teach.
I agree that the simple FSM isn't a good example to introduce the concept of hierachical design. But nevertheless it can be used to implement it. We don't know what has been explained on the way, if other excercises of module instantiation have been studied before and
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-13-2014 08:15 :: FvM :: Replies: 20 :: Views: 2381
I presume you are quoting the number from the selection tool? The column title is actually "Sample/Update-Rate". But maximum TLV5636 update rate is 1.25 MHz according to the datasheet. 0.233 MSPS isn't a valid datasheet specification.
nevertheless, it's common to refer to the output data rate of a digital signal processing system as sample rate.
Digital Signal Processing :: 04-01-2014 10:27 :: FvM :: Replies: 1 :: Views: 589
you can change the format of the display in File - Preferences - Command Window - Text display (Numeric format, Numerid display) .
You can use also the "format" command. Type "doc format" or "help format" in the command window for an explanation.
nevertheless, the accuracy of the representation is insufficient for distinguish 1844674
Digital Signal Processing :: 03-24-2014 04:26 :: zorro :: Replies: 2 :: Views: 536
I am not familiar with Proteus - nevertheless, I suppose it will provide all the simulation features other simulation packages have.
Hence, my question: What kind of simulation did you command (AC, TRAN, DC,..) ?
PCB Routing Schematic Layout software and Simulation :: 03-23-2014 17:31 :: LvW :: Replies: 3 :: Views: 1620
Why not compile them both and see the differences for yourself in the RTL and implementation diagrams?
Good suggestion. nevertheless can it be derived from language specification that both hardware implementations are exactly identical.
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-17-2014 10:21 :: FvM :: Replies: 3 :: Views: 425
Usually short circuit currents of bus bars are limited by mechanical effects. Related to fuse characteristics, it's rather unlikely to have 46 kA flowing for 1 sec. You can expect cut-off times in a ms range.
nevertheless can you calculate maximum ∫I?t values for bus bars or cables based on the acceptable overtemperature. According to it,
Power Electronics :: 03-17-2014 08:05 :: FvM :: Replies: 4 :: Views: 793
The GND can not be defected in ADS because GND is infinitive underneath of the structure ( by definition of Moments Method) that's why I think that is not possible.Instead, HFSS or CST or EmPro can be used because there isn't such constraint in these softwares.
But nevertheless you can create a seperate GND different than global GND of Momentum but
RF, Microwave, Antennas and Optics :: 02-25-2014 17:23 :: BigBoss :: Replies: 2 :: Views: 580
Simulated "measurement" results aren't necessarily less accurate than datasheet specifications but hardly better. Everything depends on the model quality.
Simulated measurements may be nevertheless meaningful to determine the effective input and output impedances of different amplifier circuits.
Analog Circuit Design :: 01-14-2014 10:37 :: FvM :: Replies: 6 :: Views: 670
The "virtual ground generator" would mainly provide the difference between MAX038 positive and negative supply + signal amplifier output current. So it can basically work.
nevertheless it's a bad power supply design that should be replaced by something more state-of-the-art. It's a sufficient reason against it that it will make fault diagnostic
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 11-16-2013 16:40 :: FvM :: Replies: 10 :: Views: 1011
why do we need a current conveyor?
the current can also be directly given to a circuit as an input, why then we use the CC block?
I don`t understand the second line of your question.
nevertheless, here is my answer to the first part:
A CC is an active circuit like opamp, Current-feedback amplifier (CFA) and OTA.
Elementary Electronic Questions :: 11-13-2013 13:24 :: LvW :: Replies: 1 :: Views: 466
I doubt there can be significant intensity modulation of an incandescent lamp at 500 Hz PWM, and it's about to impossible at kHz frequency. More likely, there's some kind of electrical crosstalk in your circuit.
nevertheless, if you want clean DC current, you can go either for linear regulator (requires a certain heatsink size) or a buck convert
Analog Circuit Design :: 10-30-2013 21:08 :: FvM :: Replies: 3 :: Views: 376
Serial GSM modems like TC35 are controlled by simple AT commands, thus you can take talk to it with any programmable device that exposes a serial interface, using any programming language of your choice.
nevertheless there are AT command or GSM libraries for various devices that do the low level work for you, but they aren't specific to TC35. E
RF, Microwave, Antennas and Optics :: 10-29-2013 19:52 :: FvM :: Replies: 6 :: Views: 1424
Generally speaking, it's not possible without a dedicated PLL block which includes an analog VCO.
There are nevertheless ways to implement a kind of PLL in pure digital logic, I guess it win't fit xc9572
Analog Circuit Design :: 10-16-2013 07:26 :: FvM :: Replies: 2 :: Views: 710
There is no reply for that kind of question. It looks like a troll aimed at starting a flame war.
Well, there is no reply, or there are as many replies as there are processor kinds.
To me, it looks like a serious but naive question. nevertheless I share your viewpoints.
Two points in addition:
Some of the requested features are
Microcontrollers :: 10-15-2013 08:12 :: FvM :: Replies: 5 :: Views: 512
Bending forces with mouse bite perforation are low. You should nevertheless avoid MLCC near and oriented towards the cutting line.
PCB Routing Schematic Layout software and Simulation :: 10-11-2013 06:01 :: FvM :: Replies: 7 :: Views: 4592
The torque generating current of a DC motor is a DC current (average) not a RMS quantity.
So the primary means to get a stable measurement would be an analog low-pass filter. A fast overcurrent information might be nevertheless interesting for stall detection. But according to your schematic, you already a filtering in ms range, so you won't ru
Microcontrollers :: 09-24-2013 16:32 :: FvM :: Replies: 1 :: Views: 486
I would like to excite the wire using current source in HFSS... the wire is cylinrical and its radius is 1 mm... length is 25 cm... my opearing frequency is 900mhz - 2000 mhz... In picture you can see the excitation... 96534
Also my HFSS design in atached file..
simulaion starts, nevertheless there is no
Electromagnetic Design and Simulation :: 09-23-2013 21:25 :: h_cet :: Replies: 2 :: Views: 1030
I don't guess about measuring artefacts without seeing the actual setup.
I presume, you see the current peak at transistor turn-on? If the diode is a schottky as claimed in the schematic, there won't be a large reverse recovery peak, a few A might be observed nevertheless. A slow standard diode can actually show a tens of A snap-off current peak
Power Electronics :: 09-19-2013 19:15 :: FvM :: Replies: 11 :: Views: 684
1. I think, the times when discrete FETs promised an advantage over monolithic OPs for high performance amplifiers are over for 30 years or so.
nevertheless you can get a few suitable devices, for replacement and special designs, e.g.
2. I guess you are asking about monolithic differential pairs? Tw
Analog Circuit Design :: 09-01-2013 15:04 :: FvM :: Replies: 2 :: Views: 565
Look sharp. pjmelect talks about loading the code into MPLAB, then changing fuses, finally programming it to the PIC.
nevertheless, the programmer can overwrite parts of the code, e.g. the fuses.
Microcontrollers :: 07-01-2013 09:09 :: FvM :: Replies: 14 :: Views: 627
High level programming languages as C have replaced many applications that required assembly language. Even DSP applications now use C. Optimizations in speed and size of memory that can painfully be done in assembler. Are no longer necessary because in general memory is cheap and processors got very powerful. nevertheless knowing assembler would n
PC Programming and Interfacing :: 05-29-2013 19:20 :: albert22 :: Replies: 11 :: Views: 1289
I/V converters (transimpedance amplifiers) can be designed for different DC current levels. An obvious consideration is to modify the circuit in this respect.
Daylight or ultimately small bandwidth interference filters can be helpful, nevertheless. Photodiodes are availble with built-in daylight filter (black plastic case), but it will still pas
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 04-26-2013 17:29 :: FvM :: Replies: 3 :: Views: 1688
Your MOSFET symbols are incorrect, you confused drain and gate terminal.
The circuit according to your text description should work nevertheless. How do you know that "both MOSFETs (are) turned on at the same time when either was activated"?
Power Electronics :: 04-21-2013 20:13 :: FvM :: Replies: 5 :: Views: 665
The performance of the energy storage inductor and capacitor usually isn't described in dB of attentuation
nevertheless can it work for a rough estimation. Treating the switched voltage square wave magnitude as fundamental filter input frequency points at least in the right direction.
Referring to the original question, you get
Power Electronics :: 02-10-2013 14:27 :: FvM :: Replies: 6 :: Views: 3046
It's O.K. to suggest other solutions for the discussed problem, but we should be nevertheless able to tell under which conditions the circuit in post #5 works.
- Expectable MAX232 propagation delay (transmitter and receiver) is about 2.5 us, so the additional round trip delay (SCK to SDI) is about 5 us. Standard SPI setting tolerates up to 1/(2*
Microcontrollers :: 01-27-2013 12:04 :: FvM :: Replies: 11 :: Views: 1584