Patent ID: 11871487
Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 6:
7. A method of controlling a portable lighting device, the method comprising:
monitoring, with an electronic processor, a voltage of an alkaline battery,
wherein the electronic processor is positioned within a housing of the portable lighting device,
wherein the alkaline battery is coupled to a light source supported by the housing, and
wherein the alkaline battery is configured to provide a drive current to the light source, and wherein an intensity of the light source is dependent on the drive current; and

executing, with the electronic processor, a ramp-up algorithm to control the drive current based on the voltage of the alkaline battery, wherein the ramp-up algorithm is executed while the light source is outputting light;
wherein executing the ramp-up algorithm includes:
determining, with the electronic processor, that the alkaline battery is partially depleted; and
in response to determining that the alkaline battery is partially depleted, with the electronic processor, to incrementally ramp-up the drive current provided to the light source from the alkaline battery to a high drive current for a high mode of operation for the light source instead of initially setting the drive current to the high drive current.