Tuesday, September 14, 2010Orlando, Florida
Crowne Plaza Airport
Complete 5555 Hazeltine National Drive, Orlando FL  32812

Wednesday, September 15, 2010Dallas, Texas
North Dallas Hyatt - formerly the Richardson Hotel
Complete 701 E. Campbell Road, Richardson, TX  75081

Tuesday, September 21, 2010Boston, Massachusetts
Westford Regency
Complete219 Littleton Road, Westford, MA  01886

Wednesday, September 22, 2010Toronto, Canada
Hilton Toronto Airport
Complete5875 Airport Road, Mississauga, ON L4V 1N1

Tuesday, September 28, 2010San Jose, California
Sheraton San Jose
Complete 1801 Barber Lane, Milpitas, CA  95035

Thursday, September 30, 2010Vancouver, Canada
Executive Plaza Coquitlam
Complete 405 North Road, Coquitlam, BC, Canada V3K 3V9

Tuesday, October 5, 2010Phoenix, Arizona
Hilton Phoenix Airport
Complete 2435 S. 47th Street, Phoenix, AZ  85034

Wednesday, October 6, 2010Santa Ana, CA
Embassy Suites Santa Ana - Orange County Airport North
Complete 1325 East Dyer Road, Santa Ana, CA 92705

Tuesday, October 12, 2010Chicago, Illinois
Stonegate Conference Center
Complete 2401 W Higgins Road, Hoffman Estates, IL 60195

Wednesday, October 13, 2010Milwaukee, Wisconsin
Sheraton Milwaukee Brookfield
Complete 375 South Moorland Road, Brookfield, WI 53005

Thursday, October 14, 2010Minneapolis, Minnesota
Park Plaza Hotel Bloomington
Complete 4460 West 78th Street Circle, Bloomington, MN 55435

Tuesday, October 19, 2010Sao Paulo, Brazil
Blue Tree Towers Morumbi
Complete Av. Roque Petroni Júnior, 1000 - Brooklin Novo
São Paulo - SP - Brazil 04707-000

Thursday, October 21, 2010Porto Alegre, Brazil
Fedarcao das Industrias do Estado do Rio Grande do Sul
Complete Av. Assis Brasil
Porto Alegre-RS 8787

Thursday, October 28, 2010Taipei, Taiwan
Grand Formosa Regent Taipei
Complete Grand Ballroom A
41 Chung Shan N. Rd, Section 2, Taipei

Wednesday, November 10, 2010Shanghai, China
Shanghai Renaissance Zhongshan Park
Full Ballroom B,
10/F, No. 1018 Changning Road, Shanghai

Friday, November 12, 2010Beijing, China
Swissotel Beijing Hong Kong Macau Center
Full Grand Ballroom A,
2/F, No.2 Chao Yang Men, Bei Da Jie, Beijing

Tuesday, November 16, 2010Shenzhen, China
Marco Polo Shenzhen
Full Hawaii Room,
7/F, 28 Fuhua 1st Road, Futian CBD, Shenzhen

Tuesday, March 8, 2011 Krakow, Poland
Sheraton
Complete Powiśle 7
31-101 Krakow, Poland

Wednesday, March 9, 2011 Vienna, Austria
Radisson SAS Palais
Parkring 16
Full 1010 Vienna, Austria

Thursday, March 10, 2011 Brno, Czech Republic
Grandhotel Brno
Complete Benešova 18-20
657 83 Brno, Republic of Czech

Tuesday, March 15, 2011 Stuttgart, Germany
Millenium Hotel and Resort
Complete Plieninger Str. 100
70567 Stuttgart, Germany

Thursday, March 17, 2011 Zurich, Switzerland
Hilton Zurich Airport
Complete Hohenbuehlstr. 10
8152 Opfikon-Glattbrugg, Switzerland

Tuesday, March 22, 2011 Frankfurt, Germany
Relexa Hotel Frankfurt/Main
Complete Lurgiallee 2
60439 Frankfurt am Main, Germany

Tuesday, April 5, 2011 Dortmund, Germany
Hilton Dortmund Hotel
Complete An der Buschmuehle 1
44139 Dortmund, Germany

Tuesday, April 5, 2011 Barcelona, Spain
Hesperias Sant Just
Complete Frederic Mompou 1
08960 Sant Just Desvern (Barcelona), Spain

Thursday, April 7, 2011 Lyon, France
NH Hotel Lyon St Exupery Airport
Complete Lyon St Exupery Airport
Lyon, France

Tuesday, May 10, 2011 Milano, Italy
Crowne Plaza Milan Linate
Complete Via K. Adenauer 3
San Donato, 20097 Milan, Italy

Wednesday, May 11, 2011 Padova, Italy
Sheraton Padova Hotel & Conference Center
Complete Corso Argentina 5
35129 Padua, Italy

Tuesday, May 24, 2011 Birmingham, United Kingdom
Crowne Plaza Birmingham NEC (Note location change)
Full Pendigo Way, National Exhibition Centre
Birmingham B40 1PS
United Kingdom

Wednesday, May 25, 2011 Copenhagen, Denmark
Hilton Copenhagen Airport
Complete Ellehammersvej 20
2770 Copenhagen, Denmark

Thursday, May 26, 2011 Helsinki, Finland
Hilton Helsinki Kalastajatorppa
Full Kalastajatorpantie 1
Helsinki 00330, Finland

Thursday, June 2, 2011 Istanbul, Turkey
BYOTELL
Full Saniye Ermutlu Sk No 3 Kozyatagi
Istanbul 34742, Turkey

Abstract - This article explains the principles of AC-DC converters in flyback topologies having a high power factor input and a constant current output. The most commonly used mode of operation for this purpose is boundary conduction mode (BCM). This paper explores the fundamentals of this mode of operation and the potential drawbacks of each. It also explains a simple method for improving power factor. Furthermore, it describes in detail how operating in discontinuous conduction mode (DCM) improves power factor and thermal harmonic distortion (THD) while reducing the peak drain voltage. This result is illustrated through a design example. The paper also delves into the special issues a designer encounters when driving high power LEDs.

Abstract - The objective of this paper is to describe the driving methods and layout requirements for fast switching MOSFETs. Power MOSFET technology continues to evolve towards higher cell density for lower on-resistance. However, there are silicon limits for a significant reduction in the on-resistance with the conventional planar MOSFET technology due to the exponential increase in on-resistance with increasing breakdown voltage. One approach to overcome this limitation is to use Super-Junction technology in high voltage power MOSFETs. This technology dramatically reduces both on-resistance and parasitic capacitances. With smaller parasitic capacitances, these Super-Junction MOSFETs have extremely fast switching characteristics and as a result, reduced switching losses. This switching behavior occurs with greater dv/dt and di/dt that affects switching performance through parasitic components in the devices and on the printed circuit board and influences the EMI performance of the entire system. An optimized design is very important to operate high speed MOSFETs.

Abstract - Increasing power density, faster switching and higher currents forces designers to spend more time both considering the effects of electromagnetic interference (EMI) and debugging a design that has EMI problems but is otherwise complete. This paper explains the different types of EMI and their coupling mechanisms and the existing EMI regulations. The most frequent noise sources, transmission paths and receiver sensitivity are examined. Based on real designs and measurements, specific procedures are recommended for use throughout the design cycle, to make the power supply work reliably and pass EMI testing.

Abstract - The environmental impact of energy consumed by electrical appliances when not in use has attracted growing attention in the international community. This paper discusses how the selection of passive components in switched-mode power supplies (SMPSs) affects standby power consumption. Based on analysis, this paper presents how to select passive components to minimize the standby power consumption of SMPSs. The validity of the proposed selection guideline is verified with a 50W prototype power supply.

Abstract - Negative feedback control is used in switched-mode power supplies to regulate the output at a desired value. The optimum design of the feedback control loop starts with understanding the characteristics of the power stage, which can be analyzed using small-signal modeling. This paper explains the fundamental idea and meaning of small-signal modeling for power supplies and explores the small-signal transfer functions for basic converters and general compensation networks. It also discusses the practical issues with feedback loop design, including characteristics of the optocoupler, effects of parasitic components, multiple output applications, and loop-gain measurement.

Abstract - In many switching power converters, rectifier diodes are used to obtain the DC output voltage. The conduction loss of a diode rectifier contributes significantly to the overall power loss, especially for low-voltage, high-current converter applications. The conduction loss of a rectifying diode is given by the product of its forward-voltage drop and forward conduction current. By replacing the rectifier diode with a MOSFET operated as a synchronous rectifier (SR), the equivalent forward-voltage drop can be lowered and consequently the conduction loss can be reduced.

Since SRs are active devices, the gate driving method and proper timing are critical for obtaining high efficiency. This paper describes the benefits and unique challenges that must be overcome when implementing MOSFETs as SR devices in isolated, single-ended forward converters. Trade-offs and challenges between self-driven, hybrid self-driven and control-driven SR techniques are discussed in detail. A unique control-driven, primary-side triggering SR drive solution is introduced and validated in a 300W, off-line, two-switch forward converter application.