How to Build a Better Dc/Dc Regulator Using FPGA’s Issue 77

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xilinx77Designers traditionally build switchmode
DC/DC converters using analog
components (bespoke ICs, operational
amplifiers, resistors, capacitors and
the like) to control the feedback loop
and to generate the pulse-width modulation
required for switching. When
using analog components like these,
you must consider a number of factors,
taking tolerances, electrical
stresses, aging drift and temperature
drift into account to ensure the stability
of the design. Now, the availability
of affordable low-powered FPGAs
coupled with analog-to-digital converters
allows the FPGA to replace the traditional
analog approach.

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