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US 2018/0294643 A1Published application
Circuit and Method of Over-Current Protection
AssigneeInfineon Technologies AG
InventorStephan Donath
Life of this patent
Estimating the term…
Abstract
A method of over-current protection includes: determining a current flowing through a first element to be protected, comparing the determined current with a plurality of thresholds, controlling a counter based on the comparing the determined current with a plurality of thresholds, and stopping the current flowing through the first element by activating a switch in series with the first element when an output of the counter reaches a predetermined counter threshold.
Claims25
A method of over-current protection comprising:
- determining a current flowing through a first element to be protected;
- comparing the determined current with a plurality of thresholds;
- controlling a counter based on the comparing the determined current with the plurality of thresholds;
- and
- stopping the current flowing through the first element by activating a switch in series with the first element when an output of the counter reaches a predetermined counter threshold.
2 more elements
A circuit comprising:
- a current sensing circuit configured to sense a current through a first circuit device;
- a first comparator having a first input coupled to a first reference node and a second input coupled to the current sensing circuit;
- and
- a counter comprising a first control input coupled to an output of the first comparator, and an output configured to be coupled to a switch, the switch coupled in series with the current sensing circuit.
1 more element
A method of emulating current capabilities of a cable, the method comprising:
- monitoring a current flowing through the cable;
- comparing the current with a plurality of thresholds;
- controlling a counter based on the comparing the current with a plurality of thresholds;
- and
- determining that the current has exceeded the current capabilities of the cable when the counter reaches a predetermined counter threshold.
2 more elements
Dependencies are inferred from the claim text.