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16-bits fixed-point PID controller

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10 Nov 2008 (Updated )

Effects of the fixed-point computations on the closed-loop precision for a 16-bits PID controller.

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Description

This simulation illustrates the effects of the fixed-point
computations on the closed-loop precision for a 16-bits PID controller.
The rounding mode, the point where the truncations take place and the
format width for the internal variable have a significant action on the
closed-loop permanent error.

Three versions of the same PI(D=0) controller are
implemented : i) double (floating point), ii) 16 bits single
precision (fixed point) and iii) 16-bits double precision (fixed point).

Required Products Fixed-Point Designer
Simulink
MATLAB release MATLAB 7.4 (R2007a)
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Updates
12 Nov 2008

download error : replace the mdl by the compressed zip file one.

12 Nov 2008

Replace the mdl file by the zip file.

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