Date: 06/05/2012

Fairchild filed new patent infringement claims against PI's LinkSwitch-PH devices

Fairchild Semiconductor has filed new patent infringement claims against Power Integrations' LinkSwitch-PH LED power conversion products.

The new lawsuit follows last week's jury verdict finding that Power Integrations' LinkSwitch-II and LinkSwitch-CV products infringe Fairchild patent claims. Fairchild is asserting three new patents that extend the company's primary side regulation technology, already found infringed by Power Integrations, to LED power conversion technology. The lawsuit was filed in the United States District Court for the District of Delaware.

Last Friday a jury for the same court found Power Integrations' LinkSwitch-II and LinkSwitch-CV products infringe Fairchild patent claims. Products found to infringe include Power Integrations' LNK603-606/613-616, SC1092, SC1097-99, SC1103, LNK632DG and LNK623-626. Fairchild said it will also seek an injunction preventing further infringement and is seeking financial damages.