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Amplifier Circuits: Logarithmicc
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Amplifier -- Main Page
Math Functions -- Main Page
Logarithmic Amplifiers: #-B
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Last Updated on:
Monday, October 03, 2011 06:07 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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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, these functions work poorly with data that is to be displayed in a
nonlinear (logarithmic] manner. Examples of these functions are Using the
built-in "linterp" function, MathCAD estimates and plots the data (Fig.... [Design
Idea by James Bach, Delphi Delco Electronics Systems, Kokomo, IN] |
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Microcontroller drives
logarithmic/linear dot/bar 20-LED display - 18-Jan-07 Issue of EDN
Do-it-yourself analog-to-LM3914 display driver offers user programmability....
[Design Idea by Dhananjay V Gadre and Anurag Chugh, Netaji Subhas Institute of
Technology, New Delhi, India; Edited by Brad Thompson and Fran Granville] |
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Mixed Signal Algorithm Tests Transducers - 04/24/97 EDN-Design
Ideas:....[Design Idea added 2/06] EDN migrating links. This link is
not verified. Google the "title" EDN for new link. |
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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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Numerical Integration Techniques TC7109 - Microchip Application Note Published
12-Nov-02 (app note added 2/06) |
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PIC µC implements CRC-16 algorithm - 02/18/99 Issue of EDN Detecting errors in
serial data can be paramount in completing an embedded-control design. Determining
which algorithm to use for detecting serial-communications errors depends on several
factors. Ideally, the method should require minimal hardware and little computational
power from your processor and still provide high-level protection against undetected
data errors. The cyclic redundancy check (CRC]....Page includes several designs.
Scroll to find this one.... [Design Idea by Lon Glastner, Solutions Cubed, Chilo, CA] |
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Polarization Dependent Loss Measurements of Passive Optical Components - Aligent
App Note (app note added 04/05/06) |
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Primer on binary arithmetic rounding - 01/21/99 Issue of EDN As digital
communications and data compression/decompression proliferate, signal-processing
functions grow in importance. Whether you’re dealing with hard-wired logic or
programmable engines, an understanding of binary-arithmetic rounding is important in
getting correct and consistent results. Before we discuss rounding, consider a binary
number (Figure 1]....Page includes several designs. Scroll to find this one....
[Design Idea by Tom Balph, Motorola SPS, Tempe, AZ] |
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Rapid Prototyping Speeds Development of UMTS W-CDMA Algorithms - Agilent
Application Note (app note added 6/06) |
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Routine yields fast-bit reversing for DSP algorithms - 13-Sep-01 Issue of EDN If
you need efficient real-time performance in DSP applications, you need an efficient
bit-reversing routine. For several FFT programs, data permutation can take 10 to 50%
of the computation time, depending on the input-data dimensions and length. The idea
behind bit reversing is to shuffle the data by flipping the address bits around the
middle of the address length so that if the data l.... [Design Idea by Mohammed Aziz,
University of Leeds, UK] |
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Logarithmic Amplifiers:
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