Results 1 to 6 of 6

Thread: Do I need to use a diode?

  1. 06-26-2003, 01:11 AM #1
    Pred8tr
    Pred8tr is offline
    Newbie
    Join Date
    Aug 2002
    Posts
    37

    Do I need to use a diode?

    I have three PT5071's that I am going to run in parallel to give me 4.5 amps at 12volts. Do I need to use diodes on the outputs to protect the PT5071's from each other? If so what?

    Thanks.
    Reply With Quote Reply With Quote
  2. 06-26-2003, 01:18 AM #2
    cproaudio
    cproaudio is offline
    FLAC cproaudio's Avatar
    Join Date
    Aug 2002
    Location
    so cal 2 hours from everywhere
    Posts
    1,120
    Send a message via AIM to cproaudio
    diodes have .6v drop so if you diode isolate them, your final voltage would be some like 11.4v
    NEW complete and updated My project with 100+ pics on 7-4-03
    If you have a Shuttle FV24 motherboard in perfect working condition for sale, please PM me.
    Reply With Quote Reply With Quote
  3. 06-26-2003, 07:19 PM #3
    Pred8tr
    Pred8tr is offline
    Newbie
    Join Date
    Aug 2002
    Posts
    37
    For shizzle?

    I mean, if I don't isolate them I will destroy them in time, right?
    Reply With Quote Reply With Quote
  4. 06-27-2003, 11:22 AM #4
    Pred8tr
    Pred8tr is offline
    Newbie
    Join Date
    Aug 2002
    Posts
    37
    Surely someone can help me answer this question.
    Reply With Quote Reply With Quote
  5. 06-28-2003, 06:26 PM #5
    stimps
    stimps is offline
    Variable Bitrate stimps's Avatar
    Join Date
    Nov 2001
    Location
    brisbane
    Posts
    326
    Send a message via MSN to stimps
    what the hell is a PT5071? i might be able to help you, if you state what it is!
    Ford XR6T blueprint 4.0 L twin cam turbo.
    Xenarc 7" touchscreen M10000 Audigy 2 NX
    ITX 120W PS 80gig HD, 256MB Ram, USB wireless internet/LAN
    Griffin Powermate Panasonic DVD-CDW
    Pioneer 5x7 Four way, 2x12 pioneer subz
    600watt 6chan USA audio AMP
    Reply With Quote Reply With Quote
  6. 07-05-2003, 02:37 PM #6
    Rob Withey
    Rob Withey is offline
    Raw Wave Rob Withey's Avatar
    Join Date
    Apr 2000
    Location
    Bedfordshire, UK
    Posts
    2,139
    Send a message via ICQ to Rob Withey Send a message via MSN to Rob Withey
    The PT5071 is a rather nice piece of kit. It is an ISR (integrated switching regulator) than can produce 1.5A of clean 12v from a 7-16v input. It is made by Texas Instruments, the datasheet is on their website.

    I'm planning on replacing my current L296 based power supply with a PT5071 and PT6625 based unit - pushes up the efficiency a lot and drops the heat produced.

    I can't help on the diode thing - I'll only be using one of them in my design.


    Rob
    Old Systems retired due to new car
    New system at design/prototype stage on BeagleBoard.
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

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
  •  

Forum Rules