Ground fault circuit interrupter and method
First Claim
Patent Images
1. A method for controlling a ground fault circuit interrupter, comprising:
- providing an alternating line signal;
generating a plurality of indicator signals in response to the alternating line signal, wherein at least one of the indicator signals indicates a number of times a clock cycles between line events;
generating at least one control signal from the plurality of indicator signals; and
using the at least one control signal to adjust a clock frequency of the ground fault circuit interrupter.
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Abstract
A method for operating a ground fault circuit interrupter. In accordance with an embodiment, an operating parameter of the ground fault circuit interrupter can be adjusted in response to an alternating current line signal and a reference signal. In accordance with another embodiment a plurality of indicator signals are generated in response to an alternating current signal. The indicator signals are used to generate one or more control signals and at least one of the control signals is used to control a control a ground fault circuit interrupter.
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Citations
21 Claims
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1. A method for controlling a ground fault circuit interrupter, comprising:
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providing an alternating line signal; generating a plurality of indicator signals in response to the alternating line signal, wherein at least one of the indicator signals indicates a number of times a clock cycles between line events; generating at least one control signal from the plurality of indicator signals; and using the at least one control signal to adjust a clock frequency of the ground fault circuit interrupter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating a ground fault circuit interrupter, comprising:
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providing an alternating current signal to the ground fault circuit interrupter; and generating operating control signals in response to the alternating current signal, wherein the operating control signals adjust operational parameters of the ground fault circuit interrupter, and wherein generating the operating control signals comprises generating a clock frequency control signal in response to a number of ground fault circuit interrupter clock signals occurring in a portion of a period of the alternating current signal. - View Dependent Claims (11)
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12. A method for controlling a ground fault circuit interrupter, comprising:
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providing an alternating line signal; generating a plurality of indicator signals in response to the alternating line signal, wherein the indicator signals indicate a level of the alternating line signal; generating at least one control signal from the plurality of indicator signals; and using the at least one control signal to control the ground fault circuit interrupter and to adjust a clock of the ground fault circuit interrupter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification