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US 10,381,823 B2Granted
Device with power switch
AssigneeInfineon Technologies AG
InventorsChristian Djelassi, Alexander Mayer
Life of this patent
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Abstract
A device comprises a solid-state power switch and a control configured to operate the power switch if at least one of a plurality of fault conditions of the device is triggered. An interface is configured to output a signal having a value selectively indicative of the triggered at least one fault condition in response to the at least one fault condition being triggered.
Claims20
A device comprising:
- a solid-state power switch;
- a control configured to operate the power switch if at least one of a plurality of fault conditions of the device is triggered;
- and
- an interface configured to output a signal having a value selectively indicative of the triggered at least one fault condition in response to the at least one fault condition being triggered, wherein the signal comprises a current flow, wherein an amplitude of the current flow is selectively indicative of the triggered at least one fault condition.
1 more element
A method comprising:
- operating a solid-state power switch of a device if at least one of a plurality of fault conditions of the device is triggered, and
- in response to the at least one fault condition being triggered, outputting a signal having a value selectively indicative of the triggered at least one fault condition, wherein the signal comprises a current flow, wherein an amplitude of the current flow is selectively indicative of the triggered at least one fault condition.
A device comprising:
- a solid-state power switch;
- a control configured to operate the power switch if at least one of a plurality of fault conditions of the device is triggered, wherein a further value different from the plurality of candidate values is uniquely associated with a latched fault condition of the device;
- and
- an interface configured to:
- output a signal having a value selectively indicative of the triggered at least one fault condition in response to the at least one fault condition being triggered;
- and
- output the signal having the further value indicative of the latched fault condition in response to the triggered at least one fault condition being resolved,
- wherein the device is configured to select the value of the signal from a plurality of candidate values based on the triggered at least one fault condition.
5 more elements
A device comprising:
- a solid-state power switch;
- a control configured to operate the power switch if at least one of a plurality of fault conditions of the device is triggered;
- and
- an interface configured to output a signal having a value selectively indicative of the triggered at least one fault condition in response to the at least one fault condition being triggered,
- wherein the signal is selectively indicative of a given one of the triggered at least one fault condition and is not indicative of the remaining one or more of the triggered at least one fault condition,
- wherein the device is configured to select the given one of the triggered at least one fault condition depending on a priority associated with each one of the plurality of fault conditions,
- wherein the fault condition being a current through the power switch exceeding an associated threshold has an associated first priority,
- wherein the fault condition being a spatial-gradient of the temperature exceeding an associated threshold has an associated second priority,
- wherein the fault condition being an ambient temperature of the power switch exceeding an associated threshold has a third priority,
- wherein the first priority is higher than the second priority, and
- wherein the second priority is higher than the third priority.
8 more elements
A device comprising:
- a solid-state power switch;
- a control configured to operate the power switch if at least one of a plurality of fault conditions of the device is triggered;
- and
- an interface configured to:
- output a signal having a value selectively indicative of the triggered at least one fault condition in response to the at least one fault condition being triggered;
- and
- selectively output the signal having the value indicative of the triggered at least one fault condition while the triggered at least one fault condition is persistent.
4 more elements
Dependencies are inferred from the claim text.