Voltage regulator circuit
First Claim
Patent Images
1. A unit having a regulator circuit, the unit comprising:
- a glass unit having at least one glass pane;
a material associated with the glass pane;
a circuit input;
a circuit output for coupling to the material and applying a signal to the material for heating the material;
a circuit control element coupled between the input and the output for controlling the signal applied to the output;
a sensing circuit coupled to the output for sensing a signal applied to the material and integrating the signal for determining if the integration exceeds a defined limit over time; and
a trigger circuit coupled to the sensing circuit for causing the circuit control element to modify the signal applied to the material when the sensing circuit senses a signal which exceeds the defined limit.
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Abstract
A voltage regulator circuit includes a circuit input and a circuit output for coupling to a load. A circuit interrupt element is coupled between the input and the load for breaking the circuit between the input and the load. A sensing circuit coupled to the output senses when a signal applied to the load exceeds a defined limit. A trigger circuit coupled to the sensing circuit causes the circuit interrupt element to trip when the sensing circuit senses a signal which exceeds the defined limit.
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Citations
30 Claims
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1. A unit having a regulator circuit, the unit comprising:
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a glass unit having at least one glass pane; a material associated with the glass pane; a circuit input; a circuit output for coupling to the material and applying a signal to the material for heating the material; a circuit control element coupled between the input and the output for controlling the signal applied to the output; a sensing circuit coupled to the output for sensing a signal applied to the material and integrating the signal for determining if the integration exceeds a defined limit over time; and a trigger circuit coupled to the sensing circuit for causing the circuit control element to modify the signal applied to the material when the sensing circuit senses a signal which exceeds the defined limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A unit comprising:
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a glass unit; a material associated with the glass unit to which a voltage is applied; a supply circuit having an input and an output, wherein the output is coupled to the material; and a regulator circuit coupled between the input and the output and including a circuit control element coupled between the input and the output for controlling the signal applied to the output, a sensing circuit coupled to the output for sensing when a signal applied to the output and through the material exceeds a defined limit, and a trigger circuit coupled to the sensing circuit for causing the circuit control element to modify the circuit between the input and the material when the sensing circuit senses a signal through the material which exceeds the defined limit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A refrigeration unit comprising:
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a glass unit; a conductive coating on the glass unit to which a voltage is applied; a supply circuit having an input and an output, wherein the output is coupled to the coating; and a regulator circuit coupled between the input and the output and including a circuit control element coupled between the input and the output for controlling the signal applied to the output, a sensing circuit coupled to the output for sensing when a signal applied to the output and through the coating exceeds a defined limit, and a trigger circuit coupled to the sensing circuit for causing the circuit control element to modify the signal applied to the coating when the sensing circuit senses a signal through the coating which exceeds the defined limit. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification