SWITCH STATE ASSURANCE SYSTEM
First Claim
1. A switch state assurance system comprising:
- a switch having at least two states;
a detector connected to the switch; and
a controller coupled to the detector and the switch; and
wherein;
the detector determines the state of the switch;
the controller determines whether the state of the switch is a desired state; and
if the state of the switch is not the desired state, then the controller sends a signal to the switch to put the switch in the desired state.
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Accused Products
Abstract
A switch state assurance mechanism of a power stealing circuit for connection to a thermostatically controlled or other kind of operational system. The mechanism may be an interface for the power stealing circuit to the operational system. A switch or relay of the mechanism may have several states but have an appropriate state for a given status of the power stealing circuit and the operational system. The switch or relay may have a latching characteristic relative to its states. The mechanism may have a detection circuit and a drive circuit connected to the relay, and a control circuit connected to the detection circuit and the drive circuit. The mechanism may check the relay state and change the relay to a desired state. The mechanism may be incorporated in other circuits beside a power stealing circuit.
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Citations
20 Claims
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1. A switch state assurance system comprising:
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a switch having at least two states;
a detector connected to the switch; and
a controller coupled to the detector and the switch; and
wherein;
the detector determines the state of the switch;
the controller determines whether the state of the switch is a desired state; and
if the state of the switch is not the desired state, then the controller sends a signal to the switch to put the switch in the desired state. - View Dependent Claims (2, 3, 4, 5)
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6. A switch state assurance system comprising:
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a switch having a first state and a second state;
a detection circuit connected to the switch;
a drive circuit connected to the switch; and
a control circuit connected to the detection circuit and the drive circuit; and
wherein the control circuit is for assuring a first state or second state of the switch. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An approach for assuring a state of a switch, comprising:
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providing a latching switch having at least two states;
detecting a present state of the switch; and
changing the state of the switch to another state if the present state is not a desired pre-installation state. - View Dependent Claims (17, 18, 19, 20)
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Specification