公开(公告)号：US20160363942A1

公开(公告)日：2016-12-15

申请号：US15248725

申请日：2016-08-26

Applicant: Google Inc.

Inventor： Daniel Adam Warren ,  Hugo B. Fiennes ,  Jonathan Alan Dutra ,  David Bell ,  Anthony Michael Fadell ,  Matthew Lee Rogers ,  Ian C. Smith ,  Edwin H. Satterthwaite, JR. ,  Grant Michael Erickson ,  Andrea Mucignat ,  Joseph E. Palmer

IPC: G05D23/19

CPC classification number: G05D23/19 ,  F24D19/1015 ,  F24D19/1039 ,  F24D19/1048 ,  F24F11/30 ,  F24F11/56 ,  F24F11/61 ,  F24F2110/10 ,  F24F2120/14 ,  G05B2219/2614 ,  G05D23/1902

Abstract: A thermostat includes a plurality of HVAC (heating, ventilation, and air conditioning) wire connectors for receiving a plurality of HVAC control wires corresponding to an HVAC system. The thermostat also includes a thermostat processing and control circuit operative to at least partially control the operation of the HVAC system and a powering circuit coupled to the HVAC wire connectors and configured to provide an electrical load power to the thermostat processing and control circuit. The thermostat includes circuitry and methods for maximizing efficiency of energy harvested from the HVAC system connected to the thermostat, and depending on which system is connected to the thermostat, different power schemes can be implemented in order to obtain power from the HVAC system.