Diode circuit does not

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• 4 quadrant TRIAC test circuit does not work

  Hello

  Attached, you will find a test for a TRIAC circuit. U1 must be set between 0 to 2, 7V (so the Ug voltage is between 0 and 0.85V). The goal is to know when the TRIAC gets to work. By changing the polarity U1 and U2, you could do this in all 4 quadrants.

  I tried, but the circuit does not work.

  Normally it should work fo a TIC226, but it is not in the database of Multisim.

  So I changed it with the TRIAC MAC228-A6.

  Could someone find the error, or give me a test circuit (4 quadrants) work for a TRIAC?

  Kind regards

  Daniel

  Hello Daniel,.

  I was able to check your code again and we will first check your schema without additional resistance.

  You can do the following things?

  -Provide a reason for your schema. (instead of the common '-'-side of your sources)

  -Provide a discharge capacity for both of your sources of tension (especially one variable)

  Is it possible that one of the lamps is missing in the schema in your first post?

• charge battery after installing the new battery does not exist

  I use Windows 7 Ultimate Spk1 32 bit on my laptop (big mistake)
  I recently installed a new battery & put it through the cycles of preparation 3 times following the instructions.
  The next time he went down to the alarm of low level newly together and I added the power adapter, nothing happened, the battery wouldn't charge.
  After many attempts to do nothing improved load, especially my temper.
  They advised me to install another battery which I just did, and this SECOND new battery just sits there & will not charge either.
  When he arrived he had 10% fresh rate showing so I removed the AC adapter and let him draw 8%, but when I replaced the adapter he had served on 8% & does not load.
  What is going on? How a simple thing like recharging simply disappears. ?
  Does anyone have a solution for this problem?

  See you soon
  Geoff

  The charging circuit inside the laptop and recharges the battery while the laptop is plugged into the mains. If the load circuit does not have the laptop is running on a charged battery or the power cable, but won't charge the battery.  The fact that the machine failed to load two new and old battery suggests the charging circuit has failed.

• Multisim 12 - by clicking on the button "stop the simulation", does not seem to turn off the circuit

  Greetings.

  I recently installed 12 Multisim and have not changed the basic operational parameters, I know...

  Shortly after installation, the application is an update.

  Your help is apprecaited to understand what is happening...

  Steps to recreate:

  1. start multisim.

  2. open a very basic circuit that includes a battery 10V with the ground, a lamp, a voltmeter between the lamp and an ammeter in series.

  3. use 'switch' at the top right of the appliation multisim window to run the simulation.

  4 lamp shows a 'enlightenment' and voltmeter indicates 10V and ammeter indicates .1a circuit.

  5. use the switch to stop the simulation.

  6. no change in the circuit or lighting of the lamp measures.

  7. same results if the simulation starts the arrow and the red square are used to start and stop.

  If I close it and reopen it circuit, the circuit begins in the OFF state, but will not OFF If when you select stop simulation.

  This is the case with several circuits, those provided by the College and the other that I created based on the same design.

  Multisim restarting has no effect to correct this observation.

  It doesn't seem normal that when the simulation running, values or apparent lamp lighting does not change.  The simulation doesn't have to go back to the start state (OFF) when I stop the simulation?

  I captured the homerun status after stopping the simulation.

  Thanks in advance for your help.

  Zan

  Hi zanzarista,

  Multisim retains the values for everything in the circuit when the simulation is stopped. Which means that you are able to view the values on your instruments (such as multimeters) even after the termination of the simulation. When you start a simulation once again, starts all over again and that's why you see a 0 momentarily.

  It is the way in which the software is intended to work.

  I hope this works.

• simulation does not work

  I composed a few diodes the wizard of components, such as the diode acts like a switch perfect to 0.7 volts.  For some reason any SPICE simulation does not run.   If I include one of these diodes in other circuits, the circuit will not simulate.  The diode model is the problem.   Any ideas how to operate?  Attached is the file multisim

  Thanks in advance!

  "- Checking SPICE netlist for perfectbridge - Thursday, February 5, 2015, 11:51:34-"
  = SPICE Netlist verification completed, 0 error (s), 0 warning (s) =.
  Model 'diodeperfect__perfectdiodes__1': 'IS' parameter must be greater than zero
  doAnalyses: incorrect use of the parameters of the model
  Cancelled simulation. "

  So: right-click on one of the diodes, select 'Properties' - 'Value' tab - press "Change model" button - box 'Use default' for 'IS' - press "Change all 4 elements" - press "OK".

• MacBook Pro does not charge

  I feel that this question is asked a million times, but I'd like to walk you guys through my situation.

  Retina Macbook Pro 2013 (out of warranty of course) in excellent condition. Fully updated software.

  A year ago, I had a problem with intermittent loading. Of course, I went online and followed the instructions on resetting the SMC. Sometimes it would work, other times not. Sometimes the software updates would trigger the loader to activate when the system is restarted. I would like to try various outlets around the House with none of them work. Is my next laptop Apple certified tech and is it charged out of their fine magsafe charger. I thought, cool, I'll buy a new charger. I understand House and it does not load. This process is repeated for a year. I could get the new charger or one laptop comes with to work. After a time I kind of nailed what I could warm up the bricks of charger with the warmth of the body and get them to come. Kind of weird but it worked... sometimes. If fast-forward a couple of weeks. I could not the computer to load at all. I took a day and I have tried everything in the book:

  • Resetting the SMC
  • Try the different points of sale
  • Warming of the charger
  • Update the system software
  • Leaving the charger unplugged for hours and try again (it of in case of dirty power coming out walls and locks the charger?)

  So I took it to my local tech again and it started to load automatically off not only their Chargers, but both of my friends... He performs a reset SMC, talking about me on the House of tension circuits and sends me on my way, pretty confusing. I get it home and charge the battery to 100%, but two weeks later here I am again with a Macbook Pro which does not load... This time I even tried to load out of a UPS System.

  I consider myself very savvy computer, especially with the Mac. I have a decent background in electrical systems of the classes I took in high school and college. I read the manuals, I do my homework, I take excellent care of my devices. But honestly, *...

  Any ideas would be appreciated. I'll take in addition to anyway. My local tech makes an appointment and I can't get an appointment of bar genius until next week. I have a laptop dead at this time.

  I do my homework,

  Certainly, you made and excluded from all the obvious concerns besides a few non-obvious. The only remaining uncertainty, I can suggest is your domestic food, since your Mac seems to load very well everywhere else. Power of the Mac adapter intelligently will close if it detects bad quality. Other than to call it 'noise' Apple is characteristically silent when it comes to debate just what are the parameters it uses to accomplish this.

  Most inverters do much through food. An alternative is to use a 'real online' or 'double conversion online' UPS, which are more expensive because they are still deriving their battery power, thus isolating their input and output power. Another esoteric alternative that I don't necessarily recommend is to use a ferroresonnant transformer. They are inherently inefficient, but concretely achieve isolation even.

• HP 15-500LA OMEN: HP OMEN LIGTH CONTROL DOES NOT WORK

  Hello

  I just got a 15 HP on August 22 and omen control does not change the diodes.  The first thing I did is you update Windows 8 Windows 10. OS is in Spanish

  Control of omen for change the light does not work.

  Can sombody help me to make it work? I'd appreciate help amny

  Thank you so much IMaxx

  I've updated the utility HP System Event and after the reset of the system, it works now

  Thank you once again

• Connected battery does not support 11%

  Question, that of why the battery is holding at 11 percent, hip but not load? I can do to remedy this? What may cause this etc... ?
  
  Early in the morning of 10/07/2016 shows 11% battery not charge.
  
  I plugged last night during the 9 p.m. Mountain time.
  
  After connecting, I was running Utorrent 3.4.9 of the overnight download of some files.
  
  A pilot plant was held yesterday 373.06 out ready driver NVIDIA GEForce game date 10/05/2016 - cost very spotless and without incident.
  
  I have two cables of load. Both worked fine yesterday.  Both are connected to a different location on a different circuit. Overvoltage protected by Belkin.
  
  Thank you, and here are my coordinates of the system.
  
  Name of the operating system Microsoft Windows 10 home
  Version 10.0.14393 Build 14393
  Another Description of the OS is not available
  Manufacturer of operating system Microsoft Corporation
  System name XXXXXXXXXXXXXX
  System manufacturer Hewlett-Packard
  HP ENVY 17 Notebook PC model system
  System Type x 64-based PC
  System SKU xxxxxxxxxx
  Processor Intel Core i7-4510U CPU @ 2.00 GHz, 2601 Mhz, 2 Lossnay, 4 logical processors
  BIOS Version/Date Insyde F.42, 18/03/2015
  SMBIOS Version 2.8
  Embedded Controller Version 77,53
  UEFI BIOS mode
  Baseboard manufacturer Hewlett-Packard
  Model baseboard is not available
  Name of plinth base
  Role Mobile platform
  Start secure State
  PCR7 Configuration binding is not Possible
  Windows C:\WINDOWS directory
  System directory C:\WINDOWS\system32
  Boot Device \Device\HarddiskVolume2
  The local United States
  Hardware Abstraction Layer Version = "10.0.14393.206".
  User name xxxxxxxxxxxxxx
  Time Zone MST
  Physical memory (RAM) installed 12.0 GB
  11.9 GB total physical memory
  7.90 GB available physical memory
  13.7 GB total virtual memory
  9.38 GB available virtual memory
  1.81 GB page file space
  Paging file C:\pagefile.sys
  Hyper-V - VM monitor Mode Extensions Yes
  Hyper-V - second level address translation Extensions Yes
  Hyper-V - virtualization enabled in Firmware No.
  Hyper-V - data execution Protection Yes

  Hi @gdcgray,

  Welcome to the HP forums! It's a great way to engage, ask questions and find resolutions by working with specialists from the community of HP. I understand that you have a battery problem with an error "plugged in, not load ' and the battery does not fresh at all. It'll be a pleasure to help you with this.

  A remarkable work has been done by you by performing a basic troubleshooting before you post your question in the forums of HP. It's always a great pleasure to work with tech-savvy and technically customers sounds like you. Kudos to you for this. I am amazed at your technical skills and levels of technical knowledge.

  It certainly looks like the battery needs to be replaced. However, let's first establish that it is the battery and not the connector of battery on the motherboard that is defective controller.

  Please follow these steps.

  Please try a hard reset first. Steps to follow:

  • Turn off the computer and unplug the charger. Then remove the battery only if it is removable.
  • Press and hold the power button on the unit for 15 seconds to carry out the static electrical charges inside the machine.
  • Replace the battery and reconnect the charger
  • Please try to calibrate the battery.
  • Please update the bios from this link http://hp.com/drivers
  • Run the battery from this link: http://support.hp.com/in-en/document/c03467259

  Please run all the tests of components and if the battery is not please take note of the failure code.

  I hope this helps. Please let me know how it goes. I really hope that the problem is solved without hassle and the computer works great. Thank you for being a part of the community of HP. Please let me know if this can help, and if this is the case, please mark this message as a "'Solution Accepted". " Kudos would be also greatly appreciated for my efforts help. You can simply click on the ""Thumbs Up "button. "

  Thank you and have a blessed week ahead!

• Satellite Pro M40X does not work with battery

  Hello

  I have toshiba satellite pro m40x laptop. It haves apromaly 11 months.
  In recent weeks, the laptop does not work with the battery.
  With the battery and the power running, if I turn on the laptop, it turns off after 10 seconds. If I only turn the computer batteries, laptop not respons.
  The laptop works without battery.

  I have rma is not the portable and the technical suport fixed the battery because it only 6 months guarantee.

  I'm sure that battery modules were not upset because I used the battery not very often.
  I disassemble and I wached the control circuit. I'm sure that something of them, it was broken, but I can't fix it without the schema.

  Another question is if I can change the graphics card to laptop. Is actually a x600se but I need power more graphic

  I hope you can help me

  gretings

  Hello

  It is not easy to say what the problem is here. Have you noticed something strange with LED power control? It is also possible that the electronic power supply do troubled. Try to talk with authorized Toshiba and explain the situation. If you open only one Notepad, uneducated, it may be simply worse.

  Graphics card cannot be updated as on desktop computers. I put t know how it is on this model laptop but the graphics card is fixed on the motherboard and cannot be traded.

• Portege R100 video cable does not reach the replacement LCD screen

  Hi guys, I have replaced the LCD screen of my Toshiba R100, than they had in it was defective. It seemed that it was a replacement at some point however. In any case, I received my new screen, but does not reach the video cable to the top of the circuit of LCD screens. How am I meant to connect it to the screen? Is there an extension cable or what? The screen they had in there previously looked like they were welded copper wires about 8 digitizer.

  Here are 2 pictures of what I mean

  

  

  Hello

  Where did you buy this screen?
  Are you sure that it is perfectly compatible with your laptop protected R100 to 100%?

  Looks like it s not fully compatible
  However, if an extra cable is necessary you can get it from the Toshiba ASP in your country.

  In your case, I recommend you contact the guy and ask for compatible cable!

  Welcome them

• Portege 7220CTe he's - USB dock does not work properly

  I have a portege 7220, with Dock he's using windows 98se.
  I have 2 usb ports on the dock, one that I use for mouse, 2nd I use for hard disk USB, cards memory sticks etc. When I start with 2 installed, often they will not work. Installing after startup does not work either. MILADI repairman told me to bring pc + dock in because they think it's a hardware problem. But sometimes, the usb works with 2 installed users. Who can help me? BIOS (ACPI version 1.70, 29/09/00).

  Hi Buk

  Trust me on this path is not easy what's happening with your USB ports.
  Do you have similar problems if you use the USB ports on Portege itself?

  As you know the signal USB is just loop through and there may be a problem with the circuit of the port replicator.

  I really put t think you will be able to solve alone.

  Good luck!

• Tecra 8100 does not start.

  Hello. I have this Tecra 8100 I think sell for parts, because I am crazy about her. But before that, I ask you here as a last.

  It seems the section "power" of the laptop works very well: if I plug the power, the 'dc in' and 'battery' LED will light, and the "battery" led even go from orange to green when the battery is charged.

  If I press the button "power on", "power" lights up. The hard disk starts to spin. The fan does nothing, and no "beep" is heard at all. In addition, the screen does not display anything. External VGA output or output TV shows nothing, too. I repeat, that no. a BEEP is heard, until...

  I close the lid. A long beep is heard when I close the lid, but no trace of the image on the screen.

  I have changed or upgraded nothing notebook: memory, CPU, etc.

  I opened and took every piece of it: internal battery, motherboard, sound card, leds and buttons edge... and I tried to connect our case so t may be a short circuit with no luck at all.

  What is a BIOS problem?

  The BIOS can be reflashed in this State, as the AWARD BIOS?

  Are there keys or buttons I could press to enter a kind of mode to diagnose or service?

  Thank you.

  Hello

  The Tecra 8100 doesn t supports no internal memory. Two memory slots are available, and it depends on the unit memory has been installed.
  Always is it that you can improve it to max 512 MB (2 x 256 MB)

  Now to you deliver; It sounds like a hardware problem, but no one could be able to provide a diagnosis exactly what we can do is speculate on the fault.
  I think that it s a motherboard problem

  See you soon

• Satellite A100-749 does not illuminate

  Hello

  Since a few days, I have a problem with the power of the laptop.
  Immediately after the connection of the AC adapter or the battery, it will not power upward.
  The flashes of button and power indicator, any indicator on the keyboard flashes one time but the laptop does not work (hard drive and fans also).

  I noticed that I have to wait a few minutes with is plugged or (I'm not sure) inserted battery.
  Then, the portable lights and works normally on battery and adapter separately and jointly.
  This means that the battery and AC adapter are not damaged.

  I also noticed that, until the problem was the power LED flashes a few seconds after plugging in the power adapter. Similarly, the light blinks a few seconds after firing on the AC adapter.
  I guess there is a capacitor that needs to be loaded.

  When I can not turn on the laptop, this indicator will start / stop flashing immediately after plugging in / pulling on the power adapter.

  Where could be a problem?
  Could this be a problem with the CMOS battery that needs to be replaced?
  Could this be a problem with a capacitor inside the laptop in the power circuit?
  Something else?

  Thanks to advice
  Best regards

  Hi mate

  Usually the DC-IN (first on left) indicator lights up blue when the power adapter is connected and if the power supply is not assured. IF the adapter voltage is abnormal or if power failures then this indicator flashes orange.

  ((Deuxième à gauche), the power led lights up blue when the computer is turned on. If the laptop is in stand by mode indicator flashes orange, while the computer shuts down.

  I think you mean the first LED and in this case, it seems that there is something wrong with the power supply electric or electronic.

• Satellite L655 - 14 d does not load

  Hi all

  My Toshiba Satellite L655 - 14 d gave me the alert battery becomes low return over six months, and until today it worked fine but now it is abruptly stopped and I noticed that the line of LED does not come with or without battery. WHST canbe likely reason... is it a power line in the failure of a circuit?

  My charger and battery are fine I checked with another system of Toshiba...

  Help, please

  What happens when you start Notepad on mains only and turn at the time where Windows is loaded?
  Battery is correctly recognized?
  Battery is ON?

• Laptop does not start after spilled liquid

  I spilled liquid everywhere in my laptop yesterday. And now it does not work!
  The thing is, I could activate it yesterday after I poured the liquid, it seemed ok.

  So I just turned off and left to dry.
  But it is not today.

  What should I do?

  Hello

  This is a really bad story and I put t see any chance of getting the laptop works without any replacement hardware.

  I think we are ve got the worst case. This means you have a short circuit that could damage the whole motherboard. :(

  I think you should certainly contact the notebook computer technician for a control.

  But it sounds really bad, Buddy :(

  However, good luck