COMMUNICATION CIRCUIT FOR 2-WIRE PROTOCOLS BETWEEN HVAC SYSTEMS AND SMART-HOME DEVICES

A circuit for stealing power from an external system without interfering with a communication protocol includes a plurality of wiring connectors configured to receive a plurality of wires, where the plurality of wiring connectors receive a plurality of current levels set by the external system accor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Warren, Daniel Adam, Lentz, Nathan, Marschalkowski, Eric, Lai, Timothy
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTING CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A circuit for stealing power from an external system without interfering with a communication protocol includes a plurality of wiring connectors configured to receive a plurality of wires, where the plurality of wiring connectors receive a plurality of current levels set by the external system according to the communication protocol; a first voltage regulator to regulate a voltage on the plurality of wiring connectors at a plurality of voltage levels according to the communication protocol; a current monitor to measure the plurality of current levels received through the plurality of wiring connectors; a second voltage regulator that provides a current-limiting output; and a power converter that optimizes an amount of power stolen from the plurality of wiring connectors based on the current-limiting output.