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US 9,882,555 B2Granted
Switch device
AssigneeInfineon Technologies AG
InventorsAndreas Meiser, Anton Mauder, Jens Barrenscheen
Life of this patent
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Abstract
A switch is provided having a switch transistor as well as a monitoring component to monitor a control signal applied to the switch transistor. With the monitoring component, in some implementation a monitoring of the control signal independent from a load path may be possible.
Claims19
A switch device, comprising:
- a switch transistor including a control terminal, a first load terminal and a second load terminal, and
- a monitoring component configured to monitor a signal at the control terminal of the switch transistor, wherein the monitoring component is configured to monitor an effect of a signal at the control terminal independent of a load current or voltage at the load terminals.
A method, comprising:
- applying a test control signal to a switch device, the switch device comprising a switch transistor including a control terminal and first and second load terminals and a monitoring component, wherein the monitoring component is configured to monitor an effect of a signal at the control terminal independent of a load current or voltage at the load terminals, and
- evaluating the test control signal in the switch independent from a load path comprising the first and second load terminals.
A switch device, comprising:
- a switch transistor,
- a monitoring transistor,
- wherein a control terminal of the monitoring transistor is coupled to a control terminal of the switch transistor,
- wherein a first load terminal of the switch transistor is to be coupled to a load,
- wherein a first load terminal of the monitoring transistor is coupled to a monitor circuit, wherein the first load terminal of the monitoring transistor is different than the first load terminal of the switch transistor,
- wherein a second load terminal of the switch transistor is coupled to a second load terminal of the monitoring transistor, and
- wherein the monitoring transistor is configured to monitor a signal at the control terminal of the switch transistor independent of a load current or voltage at the load terminals.
4 more elements
Dependencies are inferred from the claim text.