Fault detection based on comparing input current and moving average input current
US11221660B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Sep 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An example power supply for supplying electrical power to an electronic device includes converters to convert an input power signal into an output power signal, and a controller. The controller is to periodically measure an input current being drawn from the input power signal, periodically determine a moving average of the input current, and periodically compare the moving average of the input current to the present input current. The controller identifies that a fault may have occurred in response to the present input current exceeding the moving average by a threshold amount. The controller shuts down supply of power to the electronic device responsive to identifying the fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.