Dual-mode power stealing for a climate control system controller
First Claim
Patent Images
1. A controller for use in a climate control system, the controller comprising:
- a power stealing circuit configured to steal power from a first load that is in an “
on”
mode and from a second load that is in an “
off”
mode, the stealing performed from the first and second loads at the same time; and
wherein the power stealing circuit comprises a capacitor and a regulator circuit through which power is provided to the controller.
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Abstract
A controller for use in a climate control system. The controller, which may be a wireless-enabled thermostat, includes a power stealing circuit configured to steal power from a first load that is in an “on” mode and from a second load that is in an “off” mode. The stealing is performed from the first and second loads at the same time. Sufficient power can be stolen to support substantially constant operation of a transceiver of the controller.
10 Citations
24 Claims
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1. A controller for use in a climate control system, the controller comprising:
-
a power stealing circuit configured to steal power from a first load that is in an “
on”
mode and from a second load that is in an “
off”
mode, the stealing performed from the first and second loads at the same time; andwherein the power stealing circuit comprises a capacitor and a regulator circuit through which power is provided to the controller. - View Dependent Claims (2, 3, 4, 5, 7, 8, 21)
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6. A controller for use in a climate control system, the controller comprising a power stealing circuit configured to steal power from a first load that is in an “
- on”
mode and from a second load that is in an “
off”
mode, the stealing performed from the first and second loads at the same time;
wherein the power stealing circuit comprises a capacitor and a regulator circuit through which power is provided to one or more circuits ancillary to the controller.
- on”
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9. A controller for use in a climate control system, the controller comprising:
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a power stealing circuit; and a processor configured to; detect via a connected detector an “
on-mode”
operation of a first load of the climate control system; andselectively connect via connected switching circuitry the power stealing circuit with a second load in an “
off”
mode in response to detection of the “
on-mode”
operation of the first load;whereby the switching circuitry is configured to control the power stealing circuit that is configured to steal power from the first and second loads at the same time. - View Dependent Claims (10, 11, 12, 13)
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14. A control-performed method of stealing power in a climate control system to operate a controller of the climate control system, the method comprising:
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monitoring a plurality of loads of the climate control system; detecting that one of the loads is in an “
on”
mode; andin response to the detecting, actuating power stealing from one of the loads that is in an “
off”
mode;the method performed while power is being stolen from the one of the loads that is in the “
on”
mode. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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22. A controller for use in a climate control system, the controller comprising a power stealing circuit configured to steal power from a first load that is in an “
- on”
mode and from a second load that is in an “
off”
mode, the stealing performed from the first and second loads at the same time, wherein the power stealing circuit comprises;an “
on-mode”
stealing circuit including a current sensor, a current transformer connected with the current sensor, and a rectifier connected between the current transformer; andan “
off-mode”
stealing circuit including a rectifier connected with a switch. - View Dependent Claims (23, 24)
- on”
Specification