GaN Systems has experienced a surge in the number of customers designing and deploying power systems using their GaN transistors. Customers have recognized that GaN devices significantly improve power efficiency and power density. 

Transphorm, an early stage semiconductor company focused on redefining power conversion, today announced a US $70 million investment round led by global investment firm KKR. KKR’s investment follows initial rounds of funding led by funds affiliated with Kleiner Perkins Caufield and Byers, Foundation Capital, Google Ventures, Soros Quantum Strategic Partners, INCJ, Fujitsu, Transphorm will use this funding to support its growth, product innovation and expansion.