AUXILIARY POWER CIRCUIT AND METHOD OF USE
First Claim
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1. An auxiliary power circuit comprising:
- an impedance circuit;
a switch coupled in series with said impedance circuit, said switch configured to selectively couple said impedance circuit to a power source; and
a controller coupled to said switch, said controller configured to close said switch when an output voltage of the power source exceeds a voltage threshold.
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Abstract
An auxiliary power circuit includes an impedance circuit, a switch, and a controller. The switch is coupled in series with the impedance circuit. The switch is configured to selectively couple the impedance circuit to a power source. The controller is coupled to the switch. The controller is configured to close the switch when an output voltage of the power source exceeds a voltage threshold.
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Citations
23 Claims
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1. An auxiliary power circuit comprising:
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an impedance circuit; a switch coupled in series with said impedance circuit, said switch configured to selectively couple said impedance circuit to a power source; and a controller coupled to said switch, said controller configured to close said switch when an output voltage of the power source exceeds a voltage threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrical system comprising:
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a power source; an auxiliary power circuit configured to power an auxiliary load, said auxiliary power circuit coupled to said power source and configured to selectively couple said power source to a load; and a controller coupled to said auxiliary power circuit, said controller configured to operate said auxiliary power circuit to draw a predetermined current through said auxiliary load when an output voltage of said power source exceeds a voltage threshold. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of operating an auxiliary power circuit to power an auxiliary load, said method comprising:
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measuring an output voltage of a power source; closing a switch of the auxiliary power circuit to couple an auxiliary load of the auxiliary power circuit to the power source when the output voltage exceeds a first voltage threshold; drawing a predetermined current from the power source through the auxiliary load to reduce the output voltage; and opening the switch to decouple the auxiliary load when the output voltage falls below a second voltage threshold. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification