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Math
Function:
Differentiator
Math
Functions - Main Page
Last Updated on:
Friday, March 12, 2010 12:07 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Log-ratio amplifier has six-decade dynamic range - 11/27/03 EDN Design Ideas
(added 1/05) You need optical-power monitoring to guarantee overall system
performance in fiber-optic communication systems. Logarithmic-signal processing can
maintain precise measurements over a wide dynamic range. The wide-dynamic-range signal
undergoes compression, and the use of a lower resolution measurement system then saves
cost.... |
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Passive Differentiator tops Active Designs - 04/28/94 EDN-Design Ideas /
(Electronic Circuit diagram added 03/03) The simple, passive differentiator in Fig 1
achieves accurate differentiation even at frequencies approaching the limit, fO=1/(2[pi]RC).
The circuit surpasses the performance of an op-amp-based differentiator. The trick is
to add a carefully selected inductor, [phi], to eliminate the first- and second-order
terms in the equation for the phase angle, f, between the input and output signals.
Ideally, of course, to achieve perfect differentiation, this phase angle should be
equal.... |
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