TITLE

Power supply feature low VIN and VOUT

AUTHOR(S)
Guy, John
PUB. DATE
May 2006
SOURCE
Portable Design;May2006, Vol. 12 Issue 5, p34
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article reports that the operating voltages for today's application specific integrated circuits (ASIC) and microprocessors are considerably lower than those of a few years ago and this is creating problems for power-supply designers. Particularly difficult is the derivation of low output voltages from a single NiMH, NiCad or alkaline cell. Off-the-shelf circuits are available for output voltages higher than 2 volt, but none for VOUT below 2 volt. One way around this limitation is by adding a few components to the standard application circuit. The input and output inductor, capacitors, and main rectifier should be selected according to equations in the data sheet given in the article. During normal operation, the LX node of U1 switches through about 2.1 volt from ground up to VOUT plus one diode drop. The LX node also drives diodes D2A and D2B to form a voltage-doubling charge-pump.
ACCESSION #
21005142

 

Related Articles

  • RISK MITIGATION FOR POWERING LOW VOLTAGE PROCESSORS AND FPGAS DIRECTLY FROM INTERMEDIATE BUS VOLTAGE. CHAN, WILLIE; SEKANINA, JASON // Electronics World;Oct2013, Vol. 119 Issue 1930, p14 

    The article discusses the importance of risk mitigation planning in powering field-programmable gate arrays (FPGAs) and low voltage processors. It cites the need to consider an overvoltage risk mitigation to reduce costs and inconvenience to customers. It states that FPGAs, microprocessors and...

  • Battery-Charger ICs Are Tailored for Latest Applications. Morrison, David // Power Electronics Technology;May2005, Vol. 31 Issue 5, p54 

    Reports on the tailoring of battery-charger integrated circuits (IC) to cope with the growing consumer applications. Efforts of chip vendors to develop application-specific charging IC; Development of novel charging IC for single-cell and multicell lithium-ion applications; Implications of the...

  • Not exclusive.  // Electronic News;8/14/95, Vol. 41 Issue 2078, p4 

    Suggests that LSI Logic may be considering an Advanced RISC Machines (ARM) processor core for its CoreWare family. VLSI Technology and the licensing of the Advanced RISC Machines processor for its Ruby family of devices; Application specific integrated circuits (ASIC).

  • Symbios integrates ARM into Symcore ASIC library.  // Electronic News;9/16/96, Vol. 42 Issue 2134, p21 

    Reports on the integration of Symbios Logic's Advanced RISC Machines (ARM) 32-bit microprocessor called the ARM7TDMI into the firm's Symcore application specific integrated circuit (ASIC) library.

  • Network Processors on the Rise, Study Says. Hesseldahl, Arik // Electronic News;05/24/99, Vol. 45 Issue 21, p38 

    Forecasts the growth of of the network processors (NPU) market from 1997-2002 according to analysts at International Data Corp. Impact of NPU on design modification of application specific integrated circuits (ASIC); Statistical data on network processing semiconductor revenue.

  • Hardware-based virtualization eases design with multicore processors. Sathe, Satish // EDN Europe;Mar2011, Vol. 58 Issue 3, p16 

    The article offers information on virtualization of hardware, that eases the design of system-on-chip (SOC) processors. It states that the heterogeneous multicore architectures provide increased computational capacity, but the resulting complexity also poses new challenges for embedded-system...

  • FPGAs break down the complexity gridlock. Moretti, Gabe // Electronics Weekly;10/6/2004, Issue 2165, p20 

    The article reports that the absence of standard microprocessor cores in FPGA fabrics had been a serious impediment to engineers' using these devices for embedded software applications. Beginning with the 130-nm process node, both Altera and Xilinx have provided microprocessor cores, and ARM has...

  • Microcontrollers for USB Applications. Murray, Charles J. // Design News;8/11/2008, Vol. 63 Issue 11, p48 

    The article focuses on the increasing integration of Universal Serial Bus (USB) connectors in microcontrollers applications, which ranges from motor controllers to joysticks and thumb drives. It reveals that USB-based controllers eliminates the need for application-specific integrated circuits...

  • The future of Asics lying in the balance. Wilson, Richard // Electronics Weekly;4/12/2006, Issue 2236, p3 

    The article reports that LSI Logic Corp., a firm which built its business on custom design chips, has announced the ending of further development of its structured Asic product known as Rapidchip. LSI was one of the more ambitious promoters of the structured Asic concept which was intended to...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics