O2Micro's patented technology enables three-step dimming in Mean Well LED power supplies

Oct. 16, 2015
GEORGE TOWN, Grand Cayman -- O2Micro® International Limited (NASDAQ:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, announces that its patented Free Dimming Technology enables 3-Step analog dimming in the Mean Well PLM-40 (110~295VAC) and PLM-40E (180~295VAC) 40W PFC constant current mode LED power supplies.

"Mean Well's 3-Step dimming power supplies enable lighting manufacturers to quickly bring to market LED lighting fixtures featuring O2Micro's revolutionary Free Dimming Technology, enabling consumers to capture the benefits of dimming without the cost, installation and compatibility issues associated with legacy TRIAC dimmers," said Dr. Yung Lin, executive vice president, Intelligent Lighting, O2Micro.

O2Micro's patented Free Dimming Technology in its LED driver product family enables LED lights to dim using any on/off switch, thus eliminating the burden of installing expensive dimmers. Free Dimming Technology is inherently simple and works with any on/off switch, including wall toggles, paddle switches, pull cords, rotary switches and other types of on/off switches commonly found on walls, extension cords and table/desk lamps.

O2Micro's Free Dimming LED driver product family has broad appeal, working with the more than 85% of lights that are on non-dimming circuits. For consumers, eliminating dimmer cost and installation makes LED lights that incorporate O2Micro's Free Dimming LED drivers easy to use and a great value. O2Micro offers a broad portfolio of Free Dimming LED drivers, including 3-Step, 2-Step and Continuous dimming, and color changing.

"According to industry estimates, there are roughly 150 million incandescent dimmers installed in the US, a paltry number compared to the installed base of billions of lights. O2Micro's Free Dimming Technology, now available in the Mean Well PLM-40 and PLM-40E, allows lighting manufacturers to address this enormous, untapped market opportunity," said Cliff Hirsch, business development, Intelligent Lighting, O2Micro; contact Mr. Hirsch via email at [email protected].

O2Micro's 2-Step, 3-Step, Continuous, and 2 Color Dimming demonstration videos are available on the Company's website home page at http://www.o2micro.com/index.html.

Mean Well's PLM-40 and PLM-40E Series enable lighting manufacturers to easily add 3-Step dimming to their fixtures, providing enhanced value and fulfilling energy efficiency regulatory requirements. O2Micro's OZ8027T LED driver controller with 3-level toggle analog dimming and power factor correction, the core of the Mean Well drivers, provides the patented 3-Step dimming technology. In addition, the OZ8027T features universal 85V to 295V operation, high efficiency, and integrated over-temperature, over-voltage, cycle-by-cycle current limiting, and LED short circuit protection, providing safe and reliable operation. Excellent LED current regulation ensures consistent lumen output regardless of varying line input conditions.

The Mean Well power supplies are available with constant current output of 350, 500, 700, 1050, 1400, or 1750mA. Output voltages range from a low of 12V for the PLM-40-1750 to a high of 105V for the PLM-40-350. The modules support a maximum output power of 20W to 40W at 100%, based on the LED string voltage. The PLM-40 and PLM-40E are in stock and available from Arrow Electronics, Inc., Future Electronics, and numerous Mean Well distributors globally at http://www.meanwell.com/contact_distributors.html.

About O2Micro
Founded in April 1995, O2Micro develops and markets innovative power management components for the Computer, Consumer, Industrial, Automotive and Communications markets. Products include LED General Lighting, Backlighting, Battery Management and Power Management.

O2Micro International maintains an extensive portfolio of intellectual property with 29,285 patent claims granted, and over 30,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.

O2Micro, the O2Micro logo, and combinations thereof are registered trademarks of O2Micro. Free Dimming and combinations thereof are trademarks of O2Micro. All other trademarks or registered trademarks are the property of their respective owners.

About Mean Well
Mean Well Enterprises Co., Ltd. (www.meanwell.com) is one of the leading switching power supply manufacturers in Taiwan. Established in 1982, it gained ISO-9001 certification in 1994. Product lines include AC/DC switching power supplies, DC/DC converters, DC/AC inverters and battery chargers. Mean Well has over 5,000 standard models widely used in automation, communication, LED lighting, medical, moving sign, and office automation fields.

Mean Well USA was established in 1999 as a sales and support center for customers in North America and Canada. Mean Well Europe was established in 2006 in the Netherlands as a sales and customer support center for European customers. Currently, Mean Well has around 200 distributors and thousands of customers throughout the world.

Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the developments process, and errors in the products. You are also referred to the Form F-1 in connection with the company's initial public offering in August 2000, Form F-3 in connection with the company's public offering in November 2001, and the annual reports on Form 20-F, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements. The company assumes no obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise.


Scott L. Anderson, Director of Investor Relations - O2Micro
+1-408-987-5920, x8888