SWITCHING REGULATOR OVERLOAD DETECTOR

摘要

A method, apparatus, and device provide for the detection of the adequacy of the current sourcing capability of a power source. The current sourcing capability of the power source is dynamically detected by sampling comparison values obtained during one or more sampling sub-windows and determining a sample density of comparison values. In response to the sample density of comparison values crossing a selectable density threshold, an insufficient-supply indication is generated.

主权项

1. A method of determining the adequacy of the current sourcing capability of a power source, comprising:
dynamically detecting a current sourcing capability of the power source by sampling comparison values obtained during one or more sampling sub-windows and determining a sample density of comparison values; generating an insufficient-supply indication, that the current sourcing capability of the power source has fallen below a current threshold of a device supplied power by the power source in an overload condition, in response to the sample density of comparison values crossing a selectable density threshold; and in response to the sample density of comparison values crossing the selectable density threshold, a control element of the device controlling one or more of the device and the power source to have a compensatory response.