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US 2022/0065949 A1Published application
Integrating memory dropout timer
AssigneeSchweitzer Engineering Laboratories, Inc.
InventorsArmando Guzman-Casillas, Peter S. LaDow
Life of this patent
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Abstract
An electronic device includes input circuitry that obtains an input signal. The electronic device includes processing circuitry that has an integrating memory dropout (IMD) timer. The IMD timer generates an extended output signal that is asserted an extended amount of time that varies based at least in part on integration of the received input signal.
Claims20
An electronic device, comprising:
- input circuitry configured to obtain an input signal;
- and
- processing circuitry comprising an integrating memory dropout (IMD) timer, wherein the IMD timer is configured to generate an extended signal that is asserted an extended amount of time that varies based at least in part on integration of the input signal.
A method, comprising:
- obtaining an input signal;
- setting, via processing circuitry, an integrating memory dropout (IMD) timer with a dropout time to expire at an extended amount of time longer than the input signal is asserted, wherein the extended amount of time varies based at least in part on integration of the input signal;
- waiting, via the processing circuitry, until the IMD timer expires;
- and
- performing, via the processing circuitry, an operation upon expiration of the IMD timer.
2 more elements
A system, comprising:
- a first IED configured to:
- obtain first electrical measurements of a power line;
- detect a fault on the power line based on the first electrical measurements;
- determine a location of the fault based on the first electrical measurements;
- and
- send a blocking signal;
- a second IED configured to:
- receive the blocking signal from the first IED;
- set an integrating memory dropout (IMD) timer with a dropout time based at least in part on integration of the blocking signal;
- generate an extended blocking signal that is asserted based on the dropout time of the IMD timer.
7 more elements
Dependencies are inferred from the claim text.