An electronic thermostat and associated methods are disclosed for power stealing from an HVAC triggering circuit. The methods include making voltage measurements while controlling the amount of current drawn by the power stealing circuitry so as to determine a relationship that can be used to select how much current to draw during power stealing. Through the use of the described methods, the likelihood of inadvertent switching of the HVAC function (on or off) can be significantly reduced.
申请公布号
US2012199660(A1)
申请公布日期
2012.08.09
申请号
US201113267871
申请日期
2011.10.06
申请人
WARREN DANIEL ADAM;SMITH IAN C.;SATTERTHWAITE, JR. EDWIN H.;PALMER JOSEPH E.;NEST LABS, INC.
发明人
WARREN DANIEL ADAM;SMITH IAN C.;SATTERTHWAITE, JR. EDWIN H.;PALMER JOSEPH E.