Power-One Inc., a maker of power conversion products in Camarillo, and Silicon Laboratories Inc. said today that they have entered into an agreement to settle a patent infringement lawsuit filed by Power-One. Under the terms of the settlement, Silicon Laboratories in Austin, Texas, will join the Z-One Digital Power Alliance and Power-One will offer licenses to Silicon Laboratories customers using the Z-One compliant interface. Power-One is not providing any intellectual property licenses to Silicon Laboratories.