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-- Copyright (C) 2000-2002 The University of Cincinnati.
-- All rights reserved.
-- This file is part of VESTs (Vhdl tESTs).
-- UC MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
-- SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
-- IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
-- OR NON-INFRINGEMENT. UC SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY
-- LICENSEE AS A RESULT OF USING, RESULT OF USING, MODIFYING OR
-- DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
-- By using or copying this Software, Licensee agrees to abide by the
-- intellectual property laws, and all other applicable laws of the U.S.,
-- and the terms of this license.
-- You may modify, distribute, and use the software contained in this
-- package under the terms of the "GNU GENERAL PUBLIC LICENSE" version 2,
-- June 1991. A copy of this license agreement can be found in the file
-- "COPYING", distributed with this archive.
-- You should have received a copy of the GNU General Public License
-- along with VESTs; if not, write to the Free Software Foundation,
-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-- ---------------------------------------------------------------------
--
-- $Id: step_limit.ams,v 1.2 2003-08-05 15:14:24 paw Exp $
-- $Revision: 1.2 $
--
-- ---------------------------------------------------------------------
PACKAGE electricalSystem IS
NATURE electrical IS real ACROSS real THROUGH Ground reference;
FUNCTION SIN (X : real ) RETURN real;
FUNCTION COS (X : real ) RETURN real;
FUNCTION EXP (X : real ) RETURN real;
END PACKAGE electricalSystem;
USE work.electricalSystem.all;
--entity declaration
ENTITY hwr IS
END hwr;
--architecture declaration
ARCHITECTURE behavior OF hwr IS
terminal t1, t2 : electrical;
constant step : real := 5.0e12;
quantity v2 across i2 through t1 ;
quantity vs across t1 ;
limit vs:real with step/1000.0;
quantity vikram:real;
limit v2,vs:real with 2.0e9;
BEGIN -- behavior
eqn1: v2 == 100.0 * i2;
--voltage source equation
eqn2: vs == 5.0 * sin(2.0 * 3.14 * 100000.0 *
real(time'pos(now)) * 1.0e-12 );
END behavior ;
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