 O2Micro International Limited NASDAQ Global Select Market: OIIM, a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced the grant of a key system and method for driving light source patent. O2Micro was issued 16 claims under US patent U10,660,176 B2 on May 19, 2020 for the invention of a system for driving a light source including a power converter and control circuitry. The control circuitry generates a control signal based on the voltage feedback signal indicative of a combination of the output voltage, current and the light source and controls the power converter. 