H and nH_modeling vs Thevenin and Norton

H and nH_modeling vs Thevenin and Norton

1. Thevenin and Norton

   • are
     • two simplification techniques that explain terminal behavior
       • For linear circuits
         • Replace
           • A terminal port
             • source and impedance [1, 2]
               • Those help to achive
                 • To concetrate only in a portion of the circuit
                   • However
                     • those models are rigid
                       • Dependent on the source
                         • Are not related to the target
                           • Which limits their applications

2. Hybrid equivalent circuit

   • An alternative model
     • For a two terminal network
       • Consist in
         • A voltage source
         • A current source
         • An equivalent resistance
         • Can represent
           • Linear
           • Nonlinear networks
           • More dinamic
             • Could select its sources
             • Universality
               • It is use for
                 • Noise analysis
   • Nullified H model
     • Special case
       • Depends on
         • Source network
         • Target network
         • Property
           • Power consumption is
             • Minimized to zero
               • Include
                 • Multi-port networks
                   • Minimizes the DC power dissipation