SmarTrend is bullish on shares of POWI and our subscribers received an Uptrend alert on May 18, 2009 at $20.26, which has returned 55.3% to date.

Write to Chip Brian at cbrian@tradethetrend.com

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PI University Season One covers a broad range of power supply design topics, including bringing up a power supply for the first time; identifying and troubleshooting problems; complying with energy-efficiency standards; measurement and testing techniques. A new video will be released each week through January 2010; courses released so far include:

- Testing Compliance to Energy-Efficiency Standards

- Fixing a Flyback Supply with No Output Voltage

- Techniques for Measuring Efficiency

Power Integrations offers a broad range of highly integrated, high-voltage ICs for offline power conversion. Each IC includes a 700 V power MOSFET combined with control and protection circuitry on a single chip. Features include current limiting and thermal shutdown with automatic fault recovery capability to improve reliability, frequency jittering to reduce EMI, and EcoSmart technology to reduce standby energy waste.

PI University courses online:

powerint.com/piUniversity

((Comments on this story may be sent to newsdesk@closeupmedia.com))

PI University Season One covers a broad range of power supply design topics, including bringing up a power supply for the first time; identifying and troubleshooting problems; complying with energy-efficiency standards; measurement and testing techniques. A new video will be released each week through January 2010; courses released today include:

-- Testing Compliance to Energy-Efficiency Standards

-- Fixing a Flyback Supply with No Output Voltage

-- Techniques for Measuring Efficiency

Power Integrations offers a broad range of highly integrated, high-voltage ICs for offline power conversion. Each IC includes a 700 V power MOSFET combined with control and protection circuitry on a single chip. Features include current limiting and thermal shutdown with automatic fault recovery capability to improve reliability, frequency jittering to reduce EMI, and EcoSmart(R) technology to dramatically reduce standby energy waste.

PI University courses are available online now at www.powerint.com/piUniversity.

About Power Integrations

Power Integrations is the leading supplier of high-voltage integrated circuits used in energy-efficient power conversion. The company's innovative technology enables compact, energy-efficient power supplies in a wide range of electronic products, in AC-DC, DC-DC and LED lighting applications. Since its introduction in 1998, Power Integrations' EcoSmart(R) energy-efficiency technology has saved an estimated $3.7 billion of standby energy waste and prevented millions of tons of CO2 emissions. The company's Green Room web site provides a wealth of information about "energy vampires" and the issue of standby energy waste, along with a comprehensive guide to energy-efficiency standards around the world. Reflecting the environmental benefits of EcoSmart technology, Power Integrations is included in clean-technology stock indices sponsored by the Cleantech Group (Amex: CTIUS) and Clean Edge (Nasdaq: CELS). For more information, please visit www.powerint.com.

Photos/Multimedia Gallery Available: http://www.businesswire.com/cgi-bin/mmg.cgi?eid=6085943&lang=en

SOURCE: Power Integrations, Inc.

Power Integrations, Inc. 
Peter Rogerson, 408-414-8573 
progerson@powerint.com 
or 
Billings Europe PR Agency 
Nick Foot, +44 (0) 1491-636 393 
nick.foot@billings-europe.com

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Write to Chip Brian at cbrian@tradethetrend.com

---------------------------------------------------------------------------------------------

SmarTrend analyzes over 5,000 securities simultaneously throughout the trading day and provides its subscribers with trend change alerts in real time. To get a free trial of our trading calls and maximize your trading results, please visit http://www.TradeTheTrend.com.

Get exclusive, actionable insight into how the market is expected to trend prior to market open with our free morning newsletter. Sign up at: http://www.TradeTheTrend.com/signup.html