Page 8 of 25 FirstFirst 123456789101112131415161718 ... LastLast
Results 71 to 80 of 242

Thread: Battery based tank circuit (tested)

  1. #71
    FLAC LESLIEx317537's Avatar
    Join Date
    Jan 2002
    Location
    Long Island, NY
    Posts
    1,597
    I've always seen the sproggy and how it's been changing.

    It's up to version 3.5 now? How many watts is it? And how hard is it to aquire all the parts. Does he sell a kit? Is it in a box allready?
    SP13000|M2-ATX|512MB DDR400|2.5" 7200RPM S-ATA|Trans-7"|Slim SL DVD-CDRW|KEH 5.1 DSP|SB L!ve Ext|Gyration PowerMate|BT|WiFi|GPS|WinXP|VoomPC
    GPSing - Digital Speedo
    Relocating headunit and extending faceplate
    Button app to Alt-Tab between two programs

  2. #72
    MySQL Error MatrixPC's Avatar
    Join Date
    Sep 2003
    Location
    Beach City, Socal
    Posts
    4,053
    You can buy a Sproggy MK3.5 as a kit or just a PCB. With a kit you still need to buy the main Maxxim or Linear Technology and National Semi (for 12V) chips.
    Oh, changing car oil isn't that hard. For the past 15yrs I only brought my car to dealer for changing oil 5 times because they offer free car wash with any service.
    I can change the oil in my Matrix within 15 min but about an hr on the Supra because the oil filter location on the Supra is freaking hard to reach. It stuck between the side of engine block and the Turbo charger.
    2004 Matrix XR A7N8X-VM/400 AMD XP-M 2500+, DS-ATX
    89 Supra Turbo P3 600E@750/Abit BE6 II, Alpine M-BUS Car2PC.
    Y2K Accord Dell GX150
    RoadRunner is the best FE PERIOD
    EmoRebellion is a SCAMMER

  3. #73
    FLAC Mastero's Avatar
    Join Date
    Aug 2001
    Location
    India
    Posts
    1,640
    Quote Originally Posted by LESLIEx317537
    I've always seen the sproggy and how it's been changing.

    It's up to version 3.5 now? How many watts is it? And how hard is it to aquire all the parts. Does he sell a kit? Is it in a box allready?

    www.mastero.tk

    All your answers are here ! it changes for the good.

    Mastero

  4. #74
    FLAC LESLIEx317537's Avatar
    Join Date
    Jan 2002
    Location
    Long Island, NY
    Posts
    1,597
    OK, so what's the best power supply out there?

    This is what I have been running for 2 years with Jeff's shutdown controller. It says min in is 9 volts, so why does my PC reboot on crank?
    http://www.keypower.com/proddetail.a...&linenumber=15
    SP13000|M2-ATX|512MB DDR400|2.5" 7200RPM S-ATA|Trans-7"|Slim SL DVD-CDRW|KEH 5.1 DSP|SB L!ve Ext|Gyration PowerMate|BT|WiFi|GPS|WinXP|VoomPC
    GPSing - Digital Speedo
    Relocating headunit and extending faceplate
    Button app to Alt-Tab between two programs

  5. #75
    FLAC LESLIEx317537's Avatar
    Join Date
    Jan 2002
    Location
    Long Island, NY
    Posts
    1,597
    In regard to the original post:
    Quote Originally Posted by Ricky327
    Alot of poeple here seems to have problem fully charging the tank battery. The standard tank circuit uses a diode typically the MBR6045. Because of the voltage drop of the diode, the charging voltage is always 0.6-0.7V lower than it should be...13.8V. With this standard setup the backup battery never get fully charge and may not function properly during crank.

    On the diagram I have added a limiting resistor and an extra diode. The limiting resistor is directly connected to the main battery, this ensure that the backup battery get the full voltage from the main battery.

    Won't the resistor drop the voltage going into the backup battery also?

    The maximum current can be drain with this circuit is only 3A as limited by the diode. I dont have a more powerful diode to test it out A bigger backup battery can also be used together with a recalculated limiting resistor value and suitable wattage.

    Ill use a higher rating diode next time on a bigger PC...If anyone wanna try first please do so and report back

    You can run diodes in parrallel to acheive more amp loading.
    SP13000|M2-ATX|512MB DDR400|2.5" 7200RPM S-ATA|Trans-7"|Slim SL DVD-CDRW|KEH 5.1 DSP|SB L!ve Ext|Gyration PowerMate|BT|WiFi|GPS|WinXP|VoomPC
    GPSing - Digital Speedo
    Relocating headunit and extending faceplate
    Button app to Alt-Tab between two programs

  6. #76
    Maximum Bitrate none's Avatar
    Join Date
    Sep 2003
    Posts
    586
    Quote Originally Posted by LESLIEx317537
    OK, so what's the best power supply out there?

    This is what I have been running for 2 years with Jeff's shutdown controller. It says min in is 9 volts, so why does my PC reboot on crank?
    http://www.keypower.com/proddetail.a...&linenumber=15
    How is it connected to power? What gauge wire, how long, what fusing, what kind of connections? How is it grounded? Have you measured voltage in your car while cranking?

  7. #77
    Maximum Bitrate none's Avatar
    Join Date
    Sep 2003
    Posts
    586
    The Keypower is actually one of the PSUs shown to benefit from capacitor based tank circuits, but I don't mention those anymore out of fear of being flamed like hell. Help with Tank Circuit

  8. #78
    Raw Wave
    Join Date
    Jun 2003
    Posts
    1,823
    Won't the resistor drop the voltage going into the backup battery also?

    Yes this will naturally happen when the backup battery is flat and need alot of current to charge up. The resistor is there to limit the current going into the battery and this is exactly what we want.

    Looking at the original circuit, it is possible to remove the lower diode on the diagram and replace it with a wire. The good thing about this is the backup can provide the full voltage into the PC as theres no more voltage drop caused by the lower diode. The downside is the battery cannot be fully charged up when the PC is running since the PC will take down the charging voltage of the battery with it. Also the charging current is not limited properly since the battery will try to get the charging current directly from the upper diode. But I guess this might work better on some setup.

    You can run diodes in parrallel to acheive more amp loading.

    Yes Im aware of that, but the circuit was orignally designed for my low power laptop so I wasnt so concern about the more than 3A diodes. As I mentioned it before the design can easily be modified to work with higher current...for those who like to use inverters.


  9. #79
    Raw Wave
    Join Date
    Jun 2003
    Posts
    1,823
    Besides, making your own stuff is fun. Sometimes I don't feel like buying premaid stuff. I'ma do it myself kind of person. I change my own oil, why not go to Jiffy lube, You goto Jiffy lube or your dealer, I'll do it myself. It's part of the fun part, building and learning and posting questions on this forum


    I agree...making your own stuff is fun. I also used to fly model planes and build it from the plan. Same with the model cars with petrol engine I used play with them alot. Yup buying premade stuff is simply boring, designing your own things and building it is far more interesting than just putting them together...even though it may or may not work, the point is you learnt something...how can one learn when they havent even tried. I just sometimes find it strange when one ask for advice and they give something like...buy an OPUS ... A question come up "Im building a car but im having problem with..." Do I hear a response something like "go and buy a car instead its much easier to do"? Sure it is but this is a hobby.

    Oil change...do people really have to ask someone to do it for them? I can understand if the task is impossible or a specialised tool is needed. Beside those garage that change oils dont even flush the engine properly...all they do is suck out the oil. New oil but with all the sludges still in the sump. Just watching them do thier jobs make me wanna scream, some cant even turn a screw.

  10. #80
    Raw Wave
    Join Date
    Jun 2003
    Posts
    1,823
    The Keypower is actually one of the PSUs shown to benefit from capacitor based tank circuits, but I don't mention those anymore out of fear of being flamed like hell

    Im not even gonna bother...we came up with a conclusion with this one. I dont know about "shakes" though

Similar Threads

  1. MPJA - MECI ASTEC DC-DC Converter
    By Luc in forum General Hardware Discussion
    Replies: 39
    Last Post: 11-22-2004, 10:31 PM
  2. Tank Circuit Voltages
    By ciagon in forum Power Supplies
    Replies: 3
    Last Post: 11-23-2003, 04:45 PM
  3. Newbie has a question about Tank Circuit.
    By GScherler in forum Power Supplies
    Replies: 1
    Last Post: 11-14-2003, 05:15 PM
  4. tank circuit
    By TiTUS in forum General Hardware Discussion
    Replies: 10
    Last Post: 09-07-2003, 06:05 PM
  5. tank circuit - what output do I need?
    By maxcosity in forum Power Supplies
    Replies: 16
    Last Post: 06-03-2003, 05:00 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •