library IEEE;
use IEEE.electrical_systems.all;


entity buck_avg is
  
  generic (
	Vd   : voltage := 0.7;             -- Diode Voltage
	Vramp : voltage := 2.5);           -- P-P amplitude of ramp voltage

  port (
    terminal input, output, ref, ctrl: electrical);
  
end entity buck_avg;

architecture simple of buck_avg is

  quantity Vout across Iout through output to ref;
  quantity Vin across input to ref;
  quantity Vctrl across ctrl to ref;
  
begin  -- bhv

   Vout + Vd == Vctrl * Vin / Vramp; 

end simple;