Math Function: Logarithmic
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Math Functions - Main Page -
Logarithmic Math Function: #-A - ,
C-F - , L-O - ,
P-Z
Last Updated on:
Wednesday, June 02, 2021 04:35 AM |
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Links to electronic circuits, electronic schematics and designs for engineers, hobbyists, students & inventors:
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Linear potentiometer provides nonlinear light intensity control -
28-Apr-05 Issue of EDN Circuit matches light control to eye’s
intensity-response curve....[Design Idea by Stephan Goldstein, Analog
Devices, Wilmington, MA; Edited by Brad Thompson] |
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Log amp uses capacitor-charging law - 10-Jan-02 Issue of EDN
The novel logarithmic amplifier in Figure 1 relies on the exponential
charging characteristics of a simple RC circuit. The expression for the
time, T, required for a capacitor, C, to reach a voltage (VIN-VK] from 0V,
when charged through a resistor, R, with an applied voltage of VIN, is
VIN-VK=VIN (1-e-T/RC], where VK is a fixed voltage....[Design Idea by
Jayashree Raghuraman and Ajoy Raman, Aeronautical Development
Establishment, Bangalore, India] |
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Log-ratio amplifier has six-decade dynamic range - 27-Nov-03
Issue of EDN You need optical-power monitoring to guarantee
overall system performance in fiber-optic communication
systems.....[Design Idea by Reza Moghimi, Analog Devices, San Jose, CA] |
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Math Utility Routines - Microchip Application Note Published
26-Aug-97 (app note added 2/06) |
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MathCAD functions perform log interpolation - 30-Oct-03 Issue
of EDN MathCAD provides a number of interpolation and
curve-fitting functions, so that, given a set of X-Y data points, you
can estimate the Y value for any given X coordinate.
Unfortunately,....[Design Idea by James Bach, Delphi Delco Electronics
Systems, Kokomo, IN] |
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Model fixed-point DSP arithmetic in C - 03/18/99 Issue of EDN You can
run initial high-level simulations of custom numerical algorithms, such as digital
filters, using floating-point numbers in an environment such as C or Matlab.
Unfortunately, you won't see include fixed-point effects, such as truncation due to
limited precision and register overflow, until you use a Hardware Design Language (HDL],
such....Page includes several designs. Scroll to find this one....[Design Idea
by Roger Maher, SSL Ltd, Dublin, Ireland] |
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Motor Drive Algorithm Saves Space & Cycles - 02/17/94 EDN-Design
Ideas....The algorithm embodied in the second subroutine in Listing 1 generates
the excitation sequence for most permanent-magnet and hybrid stepper motors.
This subroutine is smaller than subroutines that spring from other
algorithms....[Design Idea by Jose A P Machado da Silva, University of Porto, Porto,
Portugal] |
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Nodal Analysis - ....(spice design added 02/09) |
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Non-Linear DC Analysis - ....(spice design added 02/09) |
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Numerical Integration Techniques TC7109 - Microchip Application Note
Published 12-Nov-02 (app note added 2/06) |
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| Logarithmic
Math Function: #-A - ,
C-F - , L-O - ,
P-Z - |
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