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Understanding Power Factor and Input Current Harmonics in Switched Mode Power Supplies

March 27, 2009 7:51 am | Product Releases | Comments

By Alan Gobbi, TDI Power The proliferation of AC-DC switched mode power supplies has resulted in strict limits being imposed on AC input current power factor and harmonic content. The electronic system designer must take these into account in developing hardware requirements. A sound understanding of typical power factor correction circuit performance and dynamics as a function of line and load will aid in this task....

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PFC Controller Delivers Over 96 Percent Efficiency in Green Power Supplies

March 27, 2009 7:42 am | Product Releases | Comments

Fairchild Semiconductor brings power supply designers a boundary-conduction mode (BCM) interleaving power factor correction (PFC) controller that provides over 96 percent power conversion efficiency for AC/DC power supplies. Applications include power supplies for digital TVs, desktop and entry-level server computers, front-end telecom systems and industrial power systems rated from 100W to 1000 W....

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Federal Court Dismisses Broadcom Complaint Against Qualcomm

March 26, 2009 12:27 pm | Product Releases | Comments

Qualcomm Incorporated (www.qualcomm.com) announced that the United States District Court for the Southern District of California granted Qualcomm's motion to dismiss a lawsuit brought by Broadcom www....

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Microchip Announces Acquisition of HI-TECH Software

March 26, 2009 12:26 pm | Product Releases | Comments

Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced it has acquired HI-TECH Software, a world-class provider of development tools for embedded systems based in Brisbane, Australia....

Russia Falls off the Electronics Contract Manufacturing Map

March 26, 2009 12:26 pm | Product Releases | Comments

Once viewed as a promising emerging market with massive growth potential for the global electronics contract manufacturing business, Russia now is facing a cessation of new investment, along with....

Wi-Fi Access Point Shipments to Exceed 70 million by 2010

March 26, 2009 12:20 pm | Product Releases | Comments

In the latest update to ABI Research’s Wi-Fi Equipment Market Data, global access point shipments are forecast to exceed 70 million by 2010, of which an overwhelming 90% will be generated by the SOHO and consumer markets....

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The Basics of RF and Microwave Switching Test Systems

March 25, 2009 5:52 am | Product Releases | Comments

Understanding the key components of an RF and microwave switching test system will ensure overall signal and system integrity. By Dale Cigoy, Keithley Instruments, Inc. click to enlarge Figure 1. High-frequency electromechanical relay....

Low-Crosstalk 2 mm Hard-Metric Socket Connector

March 19, 2009 11:55 am | Product Releases | Comments

3M unveiled a new Ultra Hard Metric (UHM) Socket Connector engineered to deliver more than 7 Gb/s backplane performance for systems based on 2 mm hard-metric connectors. System design engineers working with 2 mm hard-metric-based designs, such as VME or CompactPCI, can now significantly increase overall system performance while preserving their existing investment....

SP3T Switch Helps Miniaturize Designs

March 19, 2009 11:55 am | Product Releases | Comments

Engineers looking for ways to miniaturize their designs will be interested in NEC’s low-cost UPG2404T6Q SP3T (Single Pole Triple Throw) GaAs MMIC Switch. Available now in an ultra-miniature, RoHS-compliant, 1.35 x 2.0 x 0.37 mm 10-pin TSSON package, the UPG2404T6Q makes a good high power, band-selection device for triple mode CDMA/PCS/GPS cellular phones....

Limiting Amplifier Suited to OC-192, 10 Gb/s Ethernet and Fiber Channel Receivers

March 19, 2009 11:55 am | Product Releases | Comments

Hittite Microwave Corporation introduces the HMC750LP4E Limiting Amplifier that is designed to support data transmission rates up to 12.5 Gb/s and can operate over a wide range of input voltage levels while providing a constant-level differential output voltage swing. Appropriate for meeting the rigorous requirements of OC-192 receivers, 10 Gb/s Ethernet and fiber channel receivers, the HMC750LP4E also functions well in broadband test & mea...

34 to 37 GHz GaAs MMIC Power Amplifier Achieves 24% PAE

March 19, 2009 11:55 am | Product Releases | Comments

Mimix Broadband, Inc. has released a GaAs MMIC high power amplifier (HPA) with +37 dBm pulsed saturated output power and 22 dB large signal gain. This HPA, identified as XP1073-BD, covers 34 to 37 GHz and achieves 24% power added efficiency (PAE). The device is well suited for millimeter-wave military, radar, satellite and weather applications....

Integrated Power Factor Controller with Resonant Controller

March 19, 2009 11:55 am | Product Releases | Comments

ON Semiconductor’s NCP1901 is an integrated circuit that combines both a power factor correction (PFC) controller and a resonant half-bridge controller in a single package. The high level of integration of the NCP1901 permits off-line adapters to be designed with minimal form factor while meeting worldwide efficiency standards....

Synthesizers… Customized to Meet your Requirements

March 19, 2009 11:37 am | Product Releases | Comments

Mini-Circuits has released a new catalog highlighting their comprehensive line of Synthesizer products ranging from 56 to 6010 MHz. Let the Mini-Circuits design team create a custom frequency synthesizer tailored to your requirements. Mini-Circuits will review your requirements and, following technical discussions between your engineers and Mini-Circuits designers, they will work closely with you to create final specifications that meet or ...

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