Laser pulser circuit with tunable transmit power
US11996677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2020 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method includes applying, by a switching circuit, pulses of an input voltage to an input of an inductor. The method includes charging, in accordance with an off state of a switch, a charge storage device through the inductor using the pulses of the input voltage such that the circuit node develops a charge voltage that is greater than the input voltage. The method includes discharging, in accordance with an on state of the switch, the charge storage device such that a first portion of the charge voltage is applied to a light emitter and a second portion of the charge voltage is applied to parasitic inductance. The method includes controlling, by a controller, a timing of the pulses of the input voltage applied by the switching circuit based on a parasitic inductance from a previous charging cycle of the charge storage device, so as to control the charge voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.