Powering Communications

January 2013

Low on-state resistance power MOSFETs optimized for use as ORing FETs in power supplies

Renesas Electronics, a premier provider of advanced semiconductor solutions, announced three new low on-state resistance MOSFET products, including the ?PA2766T1A, optimized for use as ORing FETs

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Date:

01/31/2013

Development expands audio amplifier technology

Promising increased efficiencies, better sound, and more flexible operation, a new type of switched-mode audio amplifier based on Predictive Energy Balancing (PEB) from CogniPower is scalable from

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Date:

01/31/2013

LDMOS transistor now available in ceramic, plastic, and plastic gull-wing packages

Richardson RFPD announced immediate availability and full design support capabilities for new package options on an RF power LDMOS transistor from Freescale Semiconductor. The MRFE6VS25 is an RF power

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Date:

01/11/2013

Power switches enable high power-density in multi-port USB applications

Addressing notebook, set-top box, LCD TV, and other products requiring reliable overcurrent protection on 3.3V and 5V power rails, the AP2552 and AP2553 programmable current-limiting power switches

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Date:

01/11/2013

Nordic demonstrates ANT+ and Bluetooth low energy applications and 'appcessories' at CES 2013

Enabling designers to take advantage of a new market for "appcessories" - an accessory paired with an "app", ultra low power (ULP) RF specialist Nordic Semiconductor presented demonstrations of sample

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Date:

01/09/2013

High-frequency OCXO reference clock serves ADC & DAC applications

Addressing the growing demand for low phase noise reference clocks for ADC and DAC, IQD's new IQOV-150 series OCXO is available at frequencies up to 1.2GHz. Based on an internal high-frequency OCXO

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Date:

01/08/2013

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Figure 1: Fan-management, current-sensing, hot-swap-management, and PoS-regulation applications in standard rack-mount and blade servers

Improve server efficiency with advanced control electronics

Mark Gaboriault, Strategic Marketing Director, Alexander Latham, Systems Engineer, and Thomas Rowan, Strategic Marketing Manager, Allegro MicroSystems

The worldwide growth in computer server farms and internet traffic has resulted in this infrastructure consuming global energy production at an accelerating rate. It is now estimated that the world's

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Date:

01/07/2013

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Figure 1: No load conditions: CH1-transformer secondary side, left leg; CH2-transformer secondary side, right leg; CH4 output choke current

Voltage mode versus peak-current mode

Milan Marjanovic, Power Design Engineer, Texas Instruments

High-speed bi-directional power supplies benefit from synchronous rectification, which plays a key role in backward power flow and greatly improved load-current transient response. This behavior,

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Date:

01/07/2013

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Figure 1: Traditional high-power server architecture showing the two-stage (48- to 12 to 1-V) approach, the wide 48-V input range (38 to 60 V), and back-up energy storage at 48 V.

Direct 48 V to Intel VR12.0 DC-DC conversion

Stephen Oliver, Vice President, VI Chip Product Line, Vicor

The exponential rise in Big Data generation, processing, and storage from sources such as intensive industrial simulations, medical research, and social-media sites highlights the growing demand for

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Date:

01/06/2013

Isolated uModule Power Converter

Willie Chan Sr. Product Marketing Engineer Linear Technology

Properly implemented, galvanic isolation is an effective defense against disturbances in the ground plane often referred to as ground loops, which occur as a result of varying electrical potentials. Physical limitations require that electrical components on a PCB connect to the ground plane at different physical

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Date:

01/03/2013