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• Descargar
  Avoid Debugging Cycles in Power Management for FPGA, GPU and ASIC Systems &mdash LT Journal
  PDF, 3.2 Mb, Archivo publicado: agosto 25, 2016
  Extracto del documento

  Avoid Debugging Cycles in Power Management for FPGA,
  GPU and ASIC Systems
  Afshin Odabaee When it comes to designing FPGA, GPU or ASIC controlled systems, the number of
  design challenges related to power management and analog systems pale in comparison
  to those related to digital design. Nevertheless, it is risky to assume that power system
  design can be left to “later,” or taken in line with digital design. Even seemingly innocuous
  problems in power supply design can significantly delay the release of a system, as any
  added time to the power system debugging cycle can halt all work on the digital side.
  A good way to put DC/DC regulation
  issues to rest is to use a verified development kit offered by the FPGA, GPU or
  ASIC vendor. Often, the design itself or
  a similar design is available as a board/
  kit by the suppliers of power products
  and FPGA, GPU and ASIC manufacturers. Using a tested and verified kit unburdens
  system designers of most power system
  and analog issues, allowing them instead
  to focus their energies on configuring the
  complex digital systems. The optimum
  power system layout is taken care of
  before significant design is undertaken. THOUGHTFUL POWER MANAGEMENT
  IS CHALLENGING AT THE START Every design task is initially daunting,
  and power management design is no
  exception. This is the case when power is …

• Descargar
  LDO Linear Regulators Rival Switchers for Efficiency &mdash LT Journal
  PDF, 191 Kb, Archivo publicado: jun 20, 2006
  Extracto del documento

  DESIGN IDEAS LDO Linear Regulators
  Rival Switchers for Efficiency
  Introduction Thermal Limitations
  While efficiency is always quoted as a
  benchmark for switching regulators,
  power loss is often more important.
  Power loss sets the size of the heat sink,
  and the size of the heat sink is—more
  than any other component—directly
  related to the size of the board.
  Linear regulators are about simplicity, so their advantages are clearest
  in designs where no more than the
  multi-layer circuit board is needed
  to provide heat sinking. To a first ap-2.5 that satisfies the requirements of most
  industrial applications.
  The amount of output current
  that the linear regulator can deliver
  depends on the input-to-output differential voltage and the power loss
  limitations. For instance, in a 2.5Vto-1.5V design, the 1V differential
  voltage allows for 1A of load current to
  meet the 1W dissipation requirement
  (see Figure 1). If the differential voltage is only 0.7V, as in a 2.5V-to-1.8V
  regulator, the maximum load current …

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• Power Management > LDO Linear Regulators > Positive Linear Regulators (LDO)