Advanced Mixed-Signal-Approach for Modern HVAC Systems Advanced Mixed-Signal-Approach for Modern HVAC Systems Application Note May 4, 2005 AN155.0 Introduction: The increasing complexity of modern HVAC- The General HVAC Concept Control-Systems (Heating, Ventilating, Air-conditioning), The amount of analog inputs that need to be sensed by a requires more and more the capability of precise and quick ……