Power supply apparatus

Abstract

A power supply apparatus includes a power device, an I/V conversion circuit, a data converter, a controller, and sink-side current sources. The power device supplies current from a driving power supply to a load. The I/V conversion circuit detects a converted voltage generated by current passing through a detection resistor. The data converter converts the converted voltage into a data value based on a predetermined characteristic. The controller stops the power device from supplying the current to the load, on a condition that a calculated value derived from the data value exceeds a threshold value. The sink-side current sources, in multiple stages, superimpose an offset value on the current passing through the detection resistor.

Dependencies are inferred from the claim text.