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+
+-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc
+
+-- This file is part of VESTs (Vhdl tESTs).
+
+-- VESTs is free software; you can redistribute it and/or modify it
+-- under the terms of the GNU General Public License as published by the
+-- Free Software Foundation; either version 2 of the License, or (at
+-- your option) any later version.
+
+-- VESTs is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+
+-- 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
+
+library ieee_proposed; use ieee_proposed.electrical_systems.all;
+
+entity sw_LoopCtrl is
+ generic ( r_open : resistance := 1.0e6;
+ r_closed : resistance := 1.0e-3;
+ sw_state : integer range 1 to 2 := 1 );
+ port ( terminal c, p1, p2 : electrical );
+end entity sw_LoopCtrl;
+
+----------------------------------------------------------------
+
+architecture ideal of sw_LoopCtrl is
+
+ quantity v1 across i1 through c to p1;
+ quantity v2 across i2 through c to p2;
+ quantity r1, r2 : resistance;
+
+begin
+
+ sw1 : if sw_state = 1 generate
+ r1 == r_closed;
+ r2 == r_open;
+ end generate sw1;
+
+ sw2 : if sw_state = 2 generate
+ r1 == r_open;
+ r2 == r_closed;
+ end generate sw2;
+
+ v1 == r1 * i1;
+ v2 == r2 * i2;
+
+end architecture ideal;