公开(公告)号：US20230111084A1

公开(公告)日：2023-04-13

申请号：US17499721

申请日：2021-10-12

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： Matthew D. Blasczak ,  James R. Giebel ,  Mark Weitzner ,  Gary G. Schneider

IPC: H01S5/026 ,  H01S5/042 ,  H01S5/00

Abstract: Methods and devices for driving a laser diode are disclosed herein. An example method includes a boost regulator outputting a maximum boost voltage to drive a laser diode that is configured to output light within a wavelength range of 495 nanometers (nm) to 570 nm. A boost servo may measure a laser voltage, and calculate a voltage difference between the two voltages. The servo may then compare the voltage difference to a drive voltage to determine an excess voltage, and may cause the boost regulator to output an optimum voltage based on the excess voltage. The boost servo may also calculate a low voltage to drive at least one additional component that is electrically coupled to the boost regulator when the laser diode is inactive; and may cause the boost regulator to output the low voltage to power the at least one additional component.