Impossible to find Pulse Width Modulation (FPGA, using SCTL)

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• Construction delays in pulse width modulation

  HI there I am trying to build a vi to control speed for a motor drive.

  The specification that the technician gave me is to produce a wave of modulation of width pulse with constant and variable gap time "punctually".

  This will give you the variable speed motor that can be manipulated.

  I have build a vi pulse width modulation, but I do not understand how the time constant of the ditch example 20ms while varying the time on 1 - 3ms.

  Is there a method I could use or an example I can look at? Any help will be doing thanks in advance.

  I'll join my current vi.

  For the most part, you just need to calculate some of the variable you use to leave on time and downtime.

  I don't know style.

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  Hi Lynda,

  Nope

• Husband: "old WordPad" documents "on 2 computers. Impossible to find on the laptop; Cannot use desktop (disabled). Where? How?

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  But I know that these documents are there because he brought me a recently.

  Thank you!

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• pulse width modulation

  What modules or do I need to acquire signals from an LVDT? I have an analog output, but is there another required module?

  ABC for an external power supply. According to the specifications of the signal conditioner box you need a power supply very stable and clean.

  CD to your analog input (+-10V?) of the cRIO.

  If possible use cable separate power and sensor power (try to avoid sharing the GND (C)) and if possible use the cRIO input differential.

• Generation of signal Pulse width modulation for ULx

  Hello

  I'm trying to produce an analog waveform (IE square wave) with an option to control the cycle.

  I went out with a Measurement Computing card, which uses the libraries of user ULx.

  There are many examples of do what I want to use DAQmx, but all those who use ULx have no option to control the duty cycle.

  Can anyone help?

  Thanks in advance.

  Hi ben,

  your hardware ULx even does support the PWM outputs? Support the tasks out of meter?

  It is not only the software, the material must also support your needs!

• PremierePro CC 2014 crashes 'Impossible to find capable games modules. Latest Mac Pro and MacBook Pro

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  Please go to the following location to move the Adobe folder on the desktop,

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  Access the hidden user library files. Mac OS 10.7 and later versions

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• with pulse width measurement external sample clock

  Hi all

  I use a NI 6220 (programming with ANSI C) Board and I would like to make a "unique pulse width measurement' by using a signal from the outer door and an external signal source.

  The program and the card with the help of the "DAQmxCreateCIPulseWidthChan" command works only partially as expected. Namely, the outer door has worked, but the map uses the internal time of 80 MHz base signal instead of the external source connected to the source by default PIN (PFI, 8).

  I tried send an another PIN PFI on the default source pin using the command 'DAQmxConnectTerms', but this did not help either.

  Obviously, I'm missing something...

  Best, Uli

  Hi Uli,

  I posted in your thread here.

  Best regards

• With the help of modulated signal pulse width (square wave) to control when a signal is enabled or disable

  With the help of modulated signal pulse width (square wave) to control when a signal is enabled or disable

  Hello all

  I am using a modulated signal to labview created pulse width (square wave) to control when a signal is activated or not.

  Here is my logic and a concrete example:
  (1) the wave source signal is continuous
  (2) use a PWM (square wave) created in labview to control when the signal is enabled or disabled
  (3) if the PWM (amplitude) signal is superior to 0 play signal PWM is not greater than 0 do not play signal.

  I use actually this to the sequence step / pulse several distinct magnetic coils using my audio card (which has several channels of audio output), I have a signal in labview played constantly.  As to compare it to the PWM (square wave) which controls whether or not the signal is played on each separate channel.  That way I can control which coil is on and offshore and in what order they are activated.

  I couldn't find an edge detection for a square wave created in labview, so I tried the limits, but it doesn't seem to work unless I change the phase manually and it only goes 1-1.  I'm just trying to compare the PWM (edges of the square wave) already created by labview / play a signal if the pulse is greater than 0 and it shuts off the signal, if she is less than 0.

  Should I do this another way

  TIA

  A waveform contains an array of values. You must check every value and respond accordingly:

  

• How can I use two counters simultaneously to pulse width measurment

  Hello, everyone!

  I'm new to Labview. I currently have some cDAQ9171 and width measurment with 9401 impulses. My understanding is that the 9401 was 4 meters, which means that I can use these meter separately. However I have the following problem.

  1. I use ctr 0 and ctr 1 (PFI 1 and PFI5) to measure two different impulses. However, it seems that there is an interference between two counters. How can I make two counters working simultaneously and separately?

  2. I first try a pulse width measurment counter in Labview signalExpress. My pulse width is about 0.4ms. However, I can't get the right result, if I choose the starting edge is on the rise (the results always around 20ns. Only if I revise my pulse and pick the starting edge is down, I can get reliable results.

  I'm confused about these issues for about 3 weeks... Is there someone can help what can I do with that?

  I have attached a simple vi...

  Thank you very much!

  
  

• NI6602 pulse width measurement: do I have to use an external sample clock?

  Hello

  In the example .NET 4 "MeasPulseWidthBuf_SmplClk_Cont", it is said in the comments that:

  An external sample clock should be used.

  Hi mola.

  This specific example measures of sample-clocked pulse width.  This type of measure is supported only on new hardware such as the X series cards and will not run on the 6602.

  Your application that you have linked uses Implicit timing, which means that the signal is using the sample clock.  In other words, at the end of each pulse duration which can be measured, the sample is deterministic locked in.  So you end up with a table in the buffer of each pulse width which is seen by the meter.

  Best regards

• NI 9401 pulse width measurement.

  Hello

  I'm not sure that I understand very well the pinout diagram. At the present time, I have a NI9401 in a NI 9172 chassis.

  DIO0 and DIO1 are connected at the gates of light. I have an opto switch and I want to measure the pulse width when an object blocks passes through the slot. Can I use one of the other free entry of the for do?

  The entries are DIO2, DIO4 and DIO5.

  The other IO pins are used as triggers.

  See you soon

  K

  Hi Kamilan,

  If you explore in the measurement and Automation (MAX) and find your 9401, you can right click on the device and select "Pin of the device" which pulls up a window that says what features each pin on the device.  For example, according to this document, DIO2 is PFI2 to THE CTR0 CTR0 B and FREQ OUT.

  To answer your second question, do a right click on your device and create a new task for your 9401.  "You should do an acquisition of signals" counter input "pulse width and select CTR 1 on your device.  Once you do this, you can configure the parameters of your task and Max it will tell you where you need connect your signal source, which, for me, is DIO5.

  I would like to know how it works for you, thank you!

• How the batch of photos of change in Version 2.0 of Photos... impossible to find the function.

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  Lot, what exactly will change?

  Titles, Descriptions and capture date - Yes.

  Select the images you want to change the title or the description and to set-up the info (command-i) pane.  Enter the title or the description in the appropriate field and he will be assigned to all selected pictures.

  

  If you want to batch, change the title with sequential use attached many Applescripts provided by users in the Photos for Mac user tips section.

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• TYPE A USER ID NUMBER BRINGS UP AN ID USER STORED WHICH SHOULD BE DELETED... WHERE IS STORED THIS USERID... IMPOSSIBLE TO FIND IN THE FILE OF SAVED PASSWORDS

  TYPE A USER ID NUMBER BRINGS UP A STORED USER ID AND THE PASSWORD COMBINED IN A SINGLE STATEMENT.
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  THE WEB SITE IS NOT SAVE INFORMATION.

  It would be built-in to Firefox form fill.
  Click the field, and enter a character. If something comes along,
  highlight the fact that by using the arrow keys. Then press DELETE (Mac = delete the shift).
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• NB200 - how to find the 3G module for it?

  Hello

  Pls how I find the 3G module in my NB200 - PLL20E?

  Thank you

  Hello

  What do you mean exactly?
  You want to upgrade your NB200 with a card 3G?

  If yes then you must make sure that your NB200 could be improved using this card.
  I'm not sure if this is possible.

  But don t give up boyfriend Toshiba authorized service partner in your country could provide details.
  Guys might be able to tell if this is possible and could provide a good 3G module

  If you get more details please share with us!

  See you soon