Power converter for a memory module
First Claim
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1. An apparatus, comprising:
- first and second memory modules, located on a circuit board, configured to operate from a first voltage and a second voltage always being an integer multiple of said first voltage; and
a power converter employing a switch-mode power train, located on said circuit board, comprising a plurality of switches configured to provide said second voltage to said first and second memory modules from said first voltage by controlling a plurality of switching frequencies of the plurality of switches, wherein at least one of the plurality of switches is coupled to a capacitor configured to store said second voltage, and wherein path resistances associated with circuit board traces on said circuit board from said power converter to said first and second memory modules are substantially balanced.
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Abstract
An apparatus including a memory module and power converter and method of operating the same. In one embodiment, the apparatus includes a memory module, located on a circuit board, configured to operate from a first voltage and a second voltage being a multiple of the first voltage. The apparatus also includes a power converter employing a switched-capacitor power train, located on the circuit board, configured to provide the second voltage for the memory module from the first voltage.
346 Citations
19 Claims
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1. An apparatus, comprising:
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first and second memory modules, located on a circuit board, configured to operate from a first voltage and a second voltage always being an integer multiple of said first voltage; and a power converter employing a switch-mode power train, located on said circuit board, comprising a plurality of switches configured to provide said second voltage to said first and second memory modules from said first voltage by controlling a plurality of switching frequencies of the plurality of switches, wherein at least one of the plurality of switches is coupled to a capacitor configured to store said second voltage, and wherein path resistances associated with circuit board traces on said circuit board from said power converter to said first and second memory modules are substantially balanced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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providing a first voltage to first and second memory modules located on a circuit board; and providing a second voltage always being a one-half integer multiple of said first voltage to said first and second memory modules with a power converter employing a switch-mode power train located on said circuit board, wherein path resistances associated with circuit board traces on said circuit board from said power converter to said first and second memory modules are substantially balanced. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification