Intel Corporation

Sparq Systems Inc.

Darryl J Tschirhart

Sanjeev S Jahagirdar

Praveen Jain

Yvan Large

Jason Lee Pack

Alan Wu

Praveen K Jain

A scheme is provided for dynamically adjusting an amount of power drawn from individual power sources to optimize the power usage without violating power limits. Coarse adjustment is provided through dynamic phase reallocation while a fine adjustment is provided through dynamic current steering. By adding a control loop around current steering techniques in digital voltage regulator controllers, power drawn from multiple input rails is balanced. The apparatus allows users to maximize the power delivered to discrete graphics cards without violating PCIe specifications. This allows maximum performance with minimal bill-of-material (BOM) cost.

Apparatus and method of balancing input power from multiple sources

This invention relates to circuits and methods for controlling a resonant power converter. Control of the power converter may comprise comparing an output voltage or current of the converter to at least one reference voltage or current; enabling primary side switching signals based on a first selected result of the comparison; and disabling primary side switching signals based on a second selected result of the comparison; wherein a primary side switching signal for each primary side switch includes at least one off-on-off transition.

Controller for a resonant power converter

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Newmarket, Canada

Darryl J Tschirhart