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Math Function:
Differentiator
Last Updated on:
Monday, August 18, 2008 04:16 PM |
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Math Functions - Main Page |
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Links to electronic circuits, electronic schematics, designs for engineers,
hobbyists, students & inventors: |
| 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.... |
| 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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