Redistribution of load capacitor

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• Diode circuit does not

  Hi all!

  I'm having a problem getting my simulated circuit to translate in real life.

  Please see image of the circuit or circuit attached. I'm just checking the voltage at the point of 'test '. When I run a simulation, I get a voltage square wave at this point that alernates between the 24V and (basically) 10V. When I build this circuit on a printed circuit, the voltage at this point varies from 24V and 0V. In addition, in the simulation, the tension in 'test' relies heavily on the load capacitor (10pF), but for my real-life circuit, the capacitor does not seem to affect the voltage.

  Can someone help me understand this?

  Thank you!

  I can't run your simulation, but I can offer a few suggestions based on the images.

  Simulation and analysis of the circuit I expect that on the first impulse, load capacitor voltage source (or very close to him, according to the correct diode model used). After that the Test voltage is not defined for ideal diodes (conduction perfect when skewed towards the front and no conduction when reverse biased) because the Test is isloated. However the Test will always be in the range of 0.24 V because outside that range one of the diodes would become before biased at a State of source.

  In a real circuit impedance of entry of your measuring instrument becomes part of the circuit. If you use a digital multimeter or an oscillscope with a X 10 probe, you probably have an impedance to the ground resistance ohms 1E7 and a few picofarads of capacity.  The resistance could easily be much lower and much higher capacity with other equipment. With this impedance you currents flowing on the ground through D1 when the source is 24 V and current through D2 leakeage when the source is 0 v. As the capacity of the measuring system is comparable to the C1, the effect of the C1 will be difficult to observe.

  Lynn

• Built in battery not detected ASUS TP300L

  Last month my laptop power icon display says connected, but no battery is detected... I think there could be a problem with his equipment or battery... Well it is hard to find because the battery is built in. pls help.

  Hello

  Thanks for posting your query in Microsoft Community. I imagine the inconvenience that you are experiencing right now. Let me help you with that.

  • Have you noticed any change in hardware or software before the show?

  I would suggest trying the following steps and then check the issue.

  Method 1
  You can try to use the hardware and peripheral troubleshooting tool to solve the problem. It checks for common problems and ensures that a new device or connected to your PC hardware is correctly installed.

  Follow the steps to run the tool material and devices:

  a. press Windows + W together.
  b. write troubleshooting in the search to the corner box and press on enter.
  c. click the Troubleshooting tab.
  d. click on view all the option on the top left corner.
  e. Select the peripheral equipment and options in the list.
  f. click next to launch the hardware and device convenience store.

  Method 2

  Perform a hard reset erases all data that is stored in temporary memory and force Windows to do a complete analysis of the system, including the battery. To perform a hard reset, follow the steps below.

  1. Disconnect the power adapter from the laptop and remove the PC to a docking station or port replicator.
  2. Remove the battery from the laptop compartment.
  3. Press and hold the power button for about 15 seconds to evacuate any remaining electrical load capacitors.
  4. One time started, insert the battery and plug the power adapter into the laptop.
  5. Press the power button to turn on the laptop.
  6. Use the arrow keys to select Start Windows normally, if it is not already selected and then press the Enter key.

  Method 3

  Reset the default BIOS, after reset try to update the BIOS and chipset by downloading the drivers from the website of the manufacturer of the computer.

  http://support.ASUS.com/download/options.aspx?SLanguage=en&type=1

  Note: BIOS change / semiconductor (CMOS) to complementary metal oxide settings can cause serious problems that may prevent your computer from starting properly. Microsoft cannot guarantee that problems resulting from the configuration

  If the problem still persists, then I suggest you to contact Asus. You can do this using the link below.

  http://VIP.ASUS.com/forum/default.aspx?SLanguage=en-us

  Hope this information helps.

• Test capacitor does not load when DAQ USB-6221 is used as a measuring device

  Forum of NOR expensive, I have a Setup (see below) which is supposed to read the tension between a capacitor and a resistor in series.  Unfortunately, I found that the capacitor is unable to load completely with the connected acquisition of data entry.  However, if I remove AI0 connection of the circuit and the capacitor charges normally...

  I would be grateful if someone could explain to me:

  • Why this happens
  • If there is a way to change my test circuit in order to fully load the DAQ capacitor is connected

  For reference, I tried to change the position of resistance and capacitor (i.e. initially the capacitor in series), and in this case, the capacitor had no problem charging.  But for my purposes, I will need to test with first series resistance because I already have a lot of maps of test which are built this way.

  The food is set up to provide 75V (the rated voltage of the capacitor) when put on and the current limit is set at 20 Ma.  With these settings my capacitor only charge about 20 or 30 V with DAQ in the circuit.

  

  Let me know if I can give more details and thanks in advance to those who give thought to my question,

  You may test the limits of your USB-6221 surge.  I hope that you don't him don't have not damaged.

  You should be able to use some simple resistive voltage dividers for tensions in the acceptable range.  They will limit your ability to measure the leakage current.

  Lynn

• Capacitor charge and discharge

  Hey!

  I have a mission to do a simulation on load and uncharging of an RC circuit. I have already created a VI on the search for the value of Vc (voltage of the capacitor) by the formula Vc = V * (1-e ^(-t/R*C)). I put that in a while loop and I wanted to get a graph of the wave, but I don't get a simulation of the curve when I press the stop button. I also want to create a loop of the case, with a Boolean switch so that I can do both: charging and uncharging, but I don't know how to do the part uncharging :/ I want to add that I am new to Labview, it been 3 days I started to watch the tutorials.

  Thank yyou in advance

  Salvation; I suggest that you take some labview base classes that might be useful to address these issues.

  For the probelem that you submitted, you must keep in mind that for the chart values of charge/discharge, tou must use time as a variable within your formula.

  Duration starts from zero and lights.

  So when the loop is running, you must calculate the iteration delay and put it (in seconds) inside your formula to extract the output Vc value at that time here.

  Remebmer to ALWAYS put a delay fixed (0.005 s in the case) inside the loops of your time to give time to the CPU.

  You can use waveform cards to update your graph of output at each iteration.

  In this example, the x axis is the number of the point. Each nr point refers to a range of sampling time 0.005 s.

  The output waveform chart nr 2 uses a node of formula, which is more convenient to calculate the result and gives the same results.

  Waveform graph (the exit out of the loop), gives you the exact moment correlation and it is available after the BREAK.

  You can evaluate the first moments of ms by using the zoom graphic tools.

  Now, you might be able to do it yourself the vi discharge, this could be a useful exercise.

  Kudos are recognized!

  Bye,.

  Marco

• loading cursor worked all day

  How can I get my loading cursor to stop running? He has been running around in circles all day?

  Hello

  Please perform a hard reset first. A hard or forced Reset clears all the information in the memory of the computer which can restore the functionality. Reset your computer forces the system to erase and restore the software connections between the BIOS and hardware.

  Please find the below steps:

  Hard Reset a laptop computer with a removable battery

  To perform a hard reset on a computer equipped with a removable battery, follow these steps:

  1. Turn off the computer.
  2. Remove the computer from the docking station or port replicator.
  3. Disconnect all external devices from devices such as USB, external displays storage devices and printers.
  4. Disconnect the power adapter from the computer.
  5. Remove the battery from the compartment to batteries.
  6. Press and hold the power button for about 15 seconds, remove any residual electric charge capacitors that protect memory.
  7. Insert the battery and plug the power adapter into the laptop, but do not connect peripheral devices.
  8. Press the power button to turn on the computer.
  9. If a boot menu appears, use the arrow keys to select start Windows normally and then press the Enter key.
  10. After you have reconnected each peripheral device, run Windows Update and HP Support Assistant to update all device drivers.

  Hard Reset a laptop with a sealed or non-removable battery

  NOTE: Do not try to remove a sealed battery, as this may void your warranty.

  1. Turn off the computer.
  2. Remove the computer from the docking station or port replicator.
  3. Disconnect all external devices from devices such as USB, external displays storage devices and printers.
  4. Disconnect the power adapter from the computer.
  5. Perform button for your computer model by following the instructions in the following table.

  If Notepad starts meet after a Hard Reset, but is still slow, please follow the steps described in the following document:

   

  Improve the performance of the system without adding memory (Windows 8):

  http://support.HP.com/us-en/document/c03340676

   

  Improve the performance of the system without adding memory (Windows 7): http://support.HP.com/us-en/document/c01817290

  Please select the document depending on the operating system on your laptop. Please make sure you follow all the steps mentioned religiously for best results.

   

  If the two solutions above (Hard Reset and the Document above) do not, help us, please run a Diagnostic Test on the hard drive.

   

  Test a hard drive from the BIOS: http://support.HP.com/us-en/document/c00439024

   

   

  Screening of hardware failures (Windows 8): http://support.HP.com/us-en/document/c03467259

  Please see the hard drive in the above document to test from the Hardware Diagnostic tools.

   

  I hope this helps.

   

  !------------------- Please click on the star of CONGRATULATIONS on the left to say 'thank you '. Check the box "Accept as Solution" if she answers / solves your problem. Thank you-----------------------------------------------------------------!

  I am an employee of HP.

   

• Capacitor Tester

  Hello world

  I am new to labview and was hoping if someone could help with a fundamental question.

  I have to do a program that checks the capacitors, the program uses a Velleman K8055 or VM110N card.

  I try to give is short and simple:

  -Time measure.

  -Send 5 volts (255) to the card (which has a resistance and a capacitor wired to it)

  -measure the time it takes to get over 63% (it comes to Tau 1)

  -load an other tau 5 up to this as fully charged.

  the program also for discharge, measure the time etc still once, calculate again the tau, unloads another 5 tau, rinse and repeat, with the data, you can calculate the capacity of the capacitor and give approval or disapproval by a led lighting up and finally save in an excel document.

  but now I would like it just loads, measuring time up to 63%, whereas I would have 1 Tau, (and then, load 5XTau.)

  The rest I should be able to handle.
  

  even if you don't have that card velleman, I hope you can give a few comments that I was wrong, I've set up enough basic, remember I'm just a beginner, things in order dish is mine, the rest has been set up already, I've been at this for centuries (really, I'm too embarrassed say yet how long) , I'm sure it's quite simple, but if someone could just give me a hint or two.

  I hope someone can help me, thank you very much in advance!

  (ps I posted this elsewhere, but I thought it was a better place for my question, even though this thread is very old)

  
  

• Vista stuck at loading windows files

  My Vista machine stop working.  I tried to recover from the recovery partition and the recovery disks that I made using Vista.  The machine does that get stuck at loading windows files.  I can't even to the recovery tools.  I have already run the diagnostics and the material is true very well.  I also made sure all capacitors have been dumped.  How can I get Vista on?

  You must have a Vista operating system to do an upgrade to Windows 7.
  You do the upgrade of in an operational Vista.

  We can NOT help you with your HP recovery problems.

  It is their software/recovery process, not Microsoft.

  For any question on Windows 7:

  http://social.answers.Microsoft.com/forums/en-us/category/Windows7

  Link above is Windows 7 Forum for questions on Windows 7.

  Windows 7 questions should be directed to the it.

  You are in the Vista Forums.

  See you soon.

  See you soon.

  Mick Murphy - Microsoft partner

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  We have a network of test with the topology below.  We have two networks connected to a L3 switch.  Both networks have an ASA firewall with a tunnel from site to site between them.  They also have a connection in conjunction with each other.  We want to implement a scenerio where the concert connection is the main route but if that route fails, then it switches to the routethat is above the tunnel from site to site.  We have eigrp running on two basic switches so that the roads on the concert connection function properly.  However Networking cannot be learned on the second road that goes over the vpn tunnel.  We have running ospf on the asa and we are redistrubuting routes in eigrp.  Which apparently correct?  Look like the SAA they learn on ospf routes correctly however when we go to basic switches and show ip eigrp topology we do not see the routes possible successor.  Any ideas on how to make this work?

  

  Hello

  The initial Setup looks that you have summarized automatic enabled on core switches, also to the asa eigrp process your redistribution measures doesn't look right about the delay/load/reliability-whats the reasoning behind this? Could you try the following:

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  No Auto-resume

  ASA 1 & 2

  Router eigrp 100

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  Could you also post the out-of - show ip eigrp topology all-links

  RES

  Paul

  Please do not forget to note all messages that have been useful.

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  Gel is designed to work around very CPU process, as software instruments with an architecture complex voice and complex plug-ins (such as reverb, filters or effects by FFT). If your computer allows to calculate all the active processes in real time, the titles of freezing is not necessary. Freeze tracks is recommended when the securities with processor software instrument or effects plug-ins are in a final State, or require no subsequent change.

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  • http://www.Apple.com/retail/Geniusbar/

  To check your warranty status (the serial number is on the back of your watch):

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