Supply circuit
First Claim
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1. A supply circuit, comprising:
- a supply terminal configured to receive an external supply voltage;
at least one supply generation circuit configured to generate at least one internal supply voltage based on the external supply voltage;
a voltage deviation detection circuit configured to detect a deviation of the at least one internal supply voltage from a predefined voltage range; and
a current limiter arrangement configured to limit a current through the at least one supply generation circuit, which would otherwise exceed a predefined current value, to the predefined current value to enable an external system to identify an error state via identification of the predefined current value upon the deviation of the at least one internal supply voltage from the predefined voltage range.
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Abstract
A supply circuit is provided including a supply generation circuit coupled to a supply terminal. A voltage deviation detection circuit is adapted to detect a voltage deviation in an internal supply voltage. A current limiter arrangement is adapted to limit a current through the supply generation circuit to a predefined value.
1 Citation
26 Claims
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1. A supply circuit, comprising:
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a supply terminal configured to receive an external supply voltage; at least one supply generation circuit configured to generate at least one internal supply voltage based on the external supply voltage; a voltage deviation detection circuit configured to detect a deviation of the at least one internal supply voltage from a predefined voltage range; and a current limiter arrangement configured to limit a current through the at least one supply generation circuit, which would otherwise exceed a predefined current value, to the predefined current value to enable an external system to identify an error state via identification of the predefined current value upon the deviation of the at least one internal supply voltage from the predefined voltage range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A circuit, comprising:
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a supply terminal configured to receive an first supply voltage, a safety mechanism circuit configured to detect an error associated with a deviation of the first supply voltage, and a current limiter arrangement configured to limit a current drawn through the supply terminal, which would otherwise exceed a predefined current value, to the predefined current value when the safety mechanism circuit detects the error to enable an external system to identify the error via identification of the predefined current value upon the deviation of the first supply voltage. - View Dependent Claims (19, 20, 21)
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22. A method, comprising:
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detecting an error associated with a deviation of an internal supply voltage, responding to the error, and limiting a current drawn through a supply terminal, which would otherwise exceed a predefined error current level, to the predefined error current level to allow an external system to identify the error via identification of the predefined current value upon the deviation of the internal supply voltage, wherein the supply terminal is configured to receive an external supply voltage. - View Dependent Claims (23, 24, 25, 26)
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Specification