Power stealing control devices
DCFirst Claim
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1. A power stealing system comprising:
- a switch for switching power on and off to an electrical load;
a control circuit connected to the switch;
a storage device connected to the control circuit, wherein the control circuit conveys power from the switch to the storage device when the switch is off;
a controller connected to the switch and control circuit, wherein the controller is configured to control the switching of the switch;
a secondary power supply; and
wherein the control circuit is configured to convey power from the storage device to the controller, and if the storage device does not have sufficient power to power the controller, the control circuit conveys power from the secondary power supply to the controller.
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Abstract
A power stealing system having a switch and a circuit that takes power from equipment to operate control electronics. The system may be such that power stealing occurs while the equipment is not powered to avoid disruption or false signals in the electronics or equipment. The circuit may convey taken power to a storage device. The electronics may be powered by the storage device. The storage device may have a capacitor, a rechargeable battery, a non-chargeable battery, a solar cell, fuel cell, line power, and/or the like.
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Citations
32 Claims
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1. A power stealing system comprising:
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a switch for switching power on and off to an electrical load; a control circuit connected to the switch; a storage device connected to the control circuit, wherein the control circuit conveys power from the switch to the storage device when the switch is off; a controller connected to the switch and control circuit, wherein the controller is configured to control the switching of the switch; a secondary power supply; and wherein the control circuit is configured to convey power from the storage device to the controller, and if the storage device does not have sufficient power to power the controller, the control circuit conveys power from the secondary power supply to the controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for stealing power, comprising:
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switching power on or off to an electrical load with a switch; conveying power as needed from the switch, when the switch is off and no power is provided to the electrical load, to a storage device; and powering control electronics that control the switching of the switch, at least in part, with the power stored in the storage device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for taking power, comprising:
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a switch for connection between a power source and a load; a conveyance circuit connected to the switch; a storage mechanism connected to the conveyance circuit; a controller connected to the switch; and wherein the controller is powered by the storage mechanism at least some of the time. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification