US 2022/0021453 A1 · POWERED DEVICE AND POWER SOURCING EQUIPMENT OF OPTICAL POWER SUPPLY SYSTEM, AND OPTICAL POWER SUPPLY SYSTEM

Abstract

A powered device of an optical power supply system includes a photoelectric conversion element, a semiconductor laser for feedback and a control device. The photoelectric conversion element converts feed light into electric power, wherein the feed light is from a power sourcing equipment. The semiconductor laser oscillates with a portion of the electric power, thereby outputting feed light to a power supplying side. The control device monitors a power supply amount of the electric power to a load, and according to the power supply amount, controls an electricity-light conversion amount of conversion that is performed by the semiconductor laser.

Claims9

Dependent claims

A powered device of an optical power supply system, comprising:

a photoelectric conversion element that converts feed light into electric power, the feed light being from a power sourcing equipment;
an optical branching device for feedback that outputs a portion of the feed light to be input to the photoelectric conversion element from the power sourcing equipment, to a power supplying side as feedback feed light;
and
a control device that monitors a power supply amount of the electric power to a load, the electric power being obtained by the conversion by the photoelectric conversion element, and according to the power supply amount, controls a feedback amount of feedback that is performed by the optical branching device.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/489,688Filed 29 Sep 2021

Priority

JP 2019-19312124 Oct 2019

Published

20 Jan 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H02J 50/30
Circuit arrangements or systems for wireless supply or distribution of electric power: using light, e.g. lasers
H04B 10/25
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing…
G02B 6/4206
The coupling comprising intermediate optical elements, e.g. lenses, holograms: optical features
H01S 5/042
Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams: electrical excitation ; Circuits therefor

Powered device and power sourcing equipment of optical power supply system, and optical power supply system

Life of this patent

Powered device and power sourcing equipment of optical power supply system, and optical power supply system

Life of this patent

Abstract

Claims9