ADAPTIVE LOGIC BOARD FOR VARIABLE SPEED DRIVE FOR HEATING, VENTILATION, AIR CONDITIONING AND REFRIGERATION SYSTEM

An adaptive logic board for a variable speed drive (VSD) of a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a signal sensing circuit configured to receive an input signal from a sensor of the VSD. The signal sensing circuit includes a filter configured to con...

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Bibliographische Detailangaben
Hauptverfasser:	JIANG, Chenyi, WARRINER, JonPaul, LU, Fei, BORISOV, Konstantin Alex, OGALE, Anuradha Girish
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BASIC ELECTRONIC CIRCUITRY BLASTING CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS RANGES RESONATORS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	An adaptive logic board for a variable speed drive (VSD) of a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system includes a signal sensing circuit configured to receive an input signal from a sensor of the VSD. The signal sensing circuit includes a filter configured to condition the input signal. The filter includes a variable resistance element configured to adjust a cutoff frequency of the filter. The filter is configured to attenuate waveforms in the input signal having frequencies that exceed the cutoff frequency to generate a conditioned signal. The adaptive logic board also includes a controller configured to receive the conditioned signal and to adjust the variable resistance element to adjust the cutoff frequency of the filter based on a parameter of the HVAC&R system.