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 Implement Power Supply sense lines 

Last post Tue, Dec 13 2005 12:36 PM by archive. 3 replies.
Started by archive 13 Dec 2005 12:36 PM. Topic has 3 replies and 1432 views
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  • Tue, Dec 13 2005 12:36 PM

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    Implement Power Supply sense lines Reply

    This can be handled in concept by using the net_short property so it will package, but this doesn't quide or help the Allegro designer. What is the best way to implement a sense line to a DUT pin and allow it to be a separate net until it connects to the power pin of the DUT. The use of single pin connector or zero ohm series resistors have limitations when wanting to use a shielded interlayer.
    Anything I can think of in concept just makes the packager work, but doesn't isolate the net so that the sense line can run through the voltage plane, and be voided. Is there is best solution?


    Originally posted in cdnusers.org by dhege@harris.com
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  • Tue, Dec 13 2005 1:37 PM

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    RE: Implement Power Supply sense lines Reply

    One method is to attach the No_Shape_Connect property to the via or pin.


    Originally posted in cdnusers.org by Randy R.
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  • Tue, Jan 24 2006 7:16 PM

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    RE: Implement Power Supply sense lines Reply

    Another method is known as "Kelvin connection". There are some physical parts that support a 'sense' connection. Another way is to add two additional pins to the sense resistor and tap off of the main pad. The part when installed properly will cover the main current pad and the sense pad.
    Have a look here: http://www.ims-resistors.com/ULX.pdf


    Originally posted in cdnusers.org by redwire
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  • Tue, Jan 24 2006 8:41 PM

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    RE: Implement Power Supply sense lines Reply

    Another method is known as "Kelvin connection". There are some physical parts that support a 'sense' connection. Another way is to add two additional pins to the sense resistor and tap off of the main pad. The part when installed properly will cover the main current pad and the sense pad.
    Have a look here: http://www.ims-resistors.com/ULX.pdf


    Originally posted in cdnusers.org by redwire
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  • Tue, Jan 24 2006 8:45 PM

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    RE: Implement Power Supply sense lines Reply

    This is a test


    Originally posted in cdnusers.org by Administrator
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  • Tue, Dec 5 2006 2:12 PM

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    RE: Implement Power Supply sense lines Reply

    Actually, this is the correct way to implement Force & Sense clines. The Force line should be wider than the Sense line because you don't want any current flowing on the sense node. The Sense line needs to have the point of origin the same as the Force line to function correctly.

    Ron Scott
    Texas Instruments


    Originally posted in cdnusers.org by rgscott39
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Started by archive at 13 Dec 2005 12:36 PM. Topic has 3 replies.